SOLARIS

QUICK REFERENCE

SOLARIS

# uname –a Gives all details about the system# uname –m Displays H/W platform (sun4u)# uname –p Machine processor architecture (sparc or i386)# uname –i Machine model architecture (SUNW, Ultra 5_10)# uname –X Detailed description# mkdir –p /data/dir Creates directory and sub directory in one shot# rmdir –r /data Deletes the directory and all its subdirectory and files# cp –r /data /data1 It copies the directory# echo $MANPATH : /usr/local/samba/man:# echo $PATH Shows environmental path /usr/sbin:/usr/bin

Grep Command Options

-i Searches for both upper & lower case characters-l Lists the names of files with matching lines-n Proceeds each line with the relative line number in the file-v Inverts the search to display lines that do not match the pattern-w Searches for the expression as a complete word.

# find /kris –name file1 Searches for file file1 in /kris directory# find /ris –name file1 –exec ls –l {} \; Search and display# find /kris –type f –size 0 –exec ls –l {} \; Search for the file with size 0# find /kris –user user1 Shows file used by user ‘user1’

$ PATH=$PATH:/usr/ccs/bin:/usr/ucb: It will get appended to the existing path

# ln –s <source filename> <destination filename> Creating symbolic link# ln <source filename> <destination filename> Creating hard link

Unix File Permission

r – 4, w – 2, x – 1_rw_ r_ _ r_ _ (644) Default file permissiondrwx r_x r_x (755) Default directory permission

O G O Permission categories

# ls –n /var/adm drwxrwxr_x 5 4 4 512 nov 15 14:55 file1

5 - No of hard link to the file or directory4 – The UID of the owner4 – The GID of the group512 – Size# chmod –R 755 <directory name> For inherit permission

VI Editor

Inserting and Appending Text

a - Append text after the cursorA - Appends text at the end of the linei - Inserts text before the cursorI - Inserts text at the beginning of the lineo - Opens a new line below the cursorO - Opens a new line above the cursor:r <filename> Inserts text from another file into the current file

Key Sequence for the VI Editor

n, left arrow or backspace Left one charactersj or down arrow Down one linek or up arrow Up one linel, right arrow or spacebar Right one characterw Forward one wordb Back one worde To the end of the current word$ To the end of the line0 (zero) To the beginning of the line^ To the first non whitespace character on the lineReturn Down to the beginning of the next lineG Goes to the last line of the file1G Goes to the first line of the file:n Goes to the line nnG Goes to the line nCtrl F Pages forward one screenCtrl D Scroll down one half screenCtrl B Pages back one screenCtrl U Scrolls up one half screenCtrl L Refreshes the screen

Editing files using the VI editing commands

R Overwrites or replace characters to the right of the cursorC Changes or overwrites characters to the end of the lines Substitute a string for a character at the cursorx Deletes a character at the cursordw Deletes a word or part of the word to the right of the cursordd Dletes the line containing the cursorD Deletes the line from the cursor to the right end of the line:n,nd Deletes the line n through n

Using the Text Changing Commands

u Undoes the previous commandU Undoes all changes to the current line. Repeats the previous command

Search and Replace Command

/string Searches forward for the string?string Searches backward for the stringn Searches the next occurrence of the stringN Searches for the previous occurrence of the string:%s/old/new/g Searches for the old string and replace it with the new string globally

Using the text copying and Text Pasting Commands

yy Yanks a copy of a linep Puts yanked or deleted text under the line containing the cursorP Puts yanked or deleted text before the line containing the cursor:n,n co n Copies lines n through n and puts them after line n:n,n m n Moves lines n through n to line n

File Archives

# tar –cvf bkp.tar file1 file2 Will archive file1 & file2# tar –tvf bkp.tar Shows the table of content# tar –xvf bkp.tar It extracts file from the tar archive

# jar –cvf bkp.tar# jar –tvf bkp.jar # jar –xvf bkp.jar

# compress bkp.tar To compress tar archive# ls bkp.tar.z# uncompress bkp.tar.z To uncompress tar archive

# gzip bkp.tar To create gzip file bkp.tar.gz# gunzip bkp.tar.gz To extract the tar archive by gunzip bkp.tar

# zip out.zip bkp.tar To create zip archive# unzip out.zip To extract the zip archive

Module – 1 Introducing the Solaris OE Directory Hirerarchy

/bin Symbolic link to /usr/bin contains binary files of standard system commands/kernel Platform independent lodable kernel modules/platform Platform dependable lodable kernel modules/sbin Single user bin directory contains essential executables/usr Contains programs, scripts and libraries that are used by all system users

Unix System Resources/var Directory of varying files, includes temporary, logging, or status files

/dev/cua Dial out device files for UUCP & PPP/dev/dsk Block disk devices /dev/rdsk Raw disk devices /dev/pts Psuedo terminal devices /dev/md Metadisk devices/dev/term Serial devices /dev/sound Audio device files/dev/rmt Raw magnetic tape devices

/etc/cron.d Config info for cron utility /etc/default Default info for various prog./etc/inet Config files - network services /etc/init.d Scripts to stop & start services/etc/lp Config info for printer /etc/nfs Config info for NFS server logging/etc/rc#.d Scripts for various run levels /etc/skel Default shell initialization files

/usr/bin Standard system command /usr/sbin System administration commands/usr/kernel Platform independent lodable kernel module

devfsadm – Solaris 8 & 9drvconfig – Solaris 2.x through 2.7

Module – 2

Disk Slices

0 / 1 swap 2 Entire Disk 5 /opt 6 /usr 7 /export/home

/dev – Logical Device Names /devices – Physical Device Names

/etc/path_to_inst For each device, the system records its physical and instance name

# prtconf Shows system information including memory size

# devfsadm Will search and configure new devices added.# devfsadm –c disk# devfsadm –i <driver name># devfsadm –v To print changes made to the /dev and /devices directory# devfsadm –c To invoke cleanup routines that remove unreferenced symbolic links for devices

# formatFormat> label To store partition details.Format> fdisk To create partitionsFormat> verify Display partition detailsFormat> partition To get into partition menuFormat> save Saving new disk and partition :/etc/format.dat

Partition> 0 Change 0 partitionselect Select a predefined tablemodify Modify a predefined partition tablename Name the current tableprint Displays the current tablelabel Write partition map and label to the disk

# prtvtoc /dev/rdsk/c1t0d0s2 To view disk table# prtvtoc /dev/rdsk/c1d0s2 > /in To save disk partition details to /in file

# fmthard –s /in /dev/rdsk/c1d0s2 To load partition detail from file to disk

Module – 3 Managing the Solaris OE File System

ufs – Unix FS hsfs – High Sierra FS pcfs – PC FS for DOS FAT32 FSudfs – Universal Disk Format FS nfs - Network FSPseudo FS – Memory based FS tmpfs swapfs procfs mntfs

VTOC present in the first sector in the raw disk area.VTOC - 512 sectorBoot Block - 1-15 sectorSuper Block - 16-31First Cylinder Group - 32

Creating File Systems

# newfs /dev/rdsk/c1d0s0 Creating FS

# newfs –i 16384 /dev/rdsk/c1d0s0 Creating FS with data block size 16KB

# mount /dev/dsk/c1d0s0 /p1 Mounting partition in /p1 directory

# fstyp –v /dev/rdsk/c1d0s0 | grep minfree minfree 6% To know the reserved disk space

# tunefs –m 2 /dev/rdsk/c1d0s0 This will reduce the reserved space to 2%

# umount /p1 To umount a partition.

Never run the fsck command on a mounted FS. The /, /usr and /var FS should have the fsck command run on them on single user mode

# fsck /dev/rdsk/c0td0s7 To check the FS in interactive mode

# fsck –o f,p /dev/rdsk/c0t0d0s7 f – forces p – preen or Non interactive mode

# fsck –y /dev/rdsk/c0t0d0s7 It answers that to all questions we said yes with –y option

# newfs –N /dev/rdsk/c0t0d0s7 To view the locations of alternative backup superblocks

# fsck –o b=32 /dev/rdsk/c0t0d0s7 Will retrieve the corrupted partition.

# dd if=/dev/zero of=/dev/rdsk/c0d0s7 bs=512 count=32 It will corrupt the partition

# df Shows disk detail in blocks# df –k (in KB) # df –h Displays disk allocation in MB & GB# df –e Points only the number of files free

# du –k Displays disk use in KB# du –s Displays only the summary in 512 bytes blocks. Using the s and k options together shows summary in KB# du –h /opt Shows the disk usage by the directory

# quot –a Reports on all mounted file systems# quot –f Include the number of files# quot –h /export/home Shows disk usage userwise in the particular directory

Module – 4 Mounts & Unmounts

# mount Lists all of the mounted FS in the /etc/mnttab file

VFSTAB Virtual File System Tab /etc/vfstabdevice to mount device to fsck mount point FS type fsck pass mount at boot mount options

/etc/mnttab file is an mntfs file that provides read-only info about mounted FS on the local host

The /etc/vfstab file lists all the FS to be automatically mounted at system boot time, with the exception of the /etc/mnttab and /var/run FS

# mount /dev/dsk/c0t0d0s7 /export/home

Mount Options : read/write, setuid, intr, nologging and largefiles, xattr and onerror.

# mount –o option,option,… device_name mount_point# mount -o ro /dev/dsk/c0d0s7 /p3 Mount the partition read only.# mount –o ro,nosuid /dev/dsk/c0t0d0s7 /export/home Prohibit execution of setuid pgm.

In solaris 2GB is the large file limit. Use of nolargefiles option fails if the FS to be mounted contains large files.

# mount -o nolargefiles,noatime /dev/dsk/c0d0s7 /p3nolargefiles Won’t allow large files in this partitionnoatime Modification time stamp won’t get updated.

# mountall Mounted local FS listed in the /etc/vfstab file# mountall –l If any FS has entry in the fsck pass field as – or 0 then it will get mounted without fsck checking. Otherwise fsck carried out before mounting

# fstype /dev/rdsk/c0t0d0s7 To know the FS type

# mount –F hsfs –o ro /dev/dsk/c0t6d0s0 /cdrom To mount CD-Drive

# mount –F pcfs /dev/diskette /pcfs

# umount /export/home or umount /dev/dsk/c0t0d0s7# umountall Will unmount local FS listed in /etc/mnttab except /, /usr, /proc, /dev/fd, /var, /var/run & /tmp# umountall –l To verify the FS listed in the /etc/mnttab

# fuser –c /p3 Will show the process running on the partition# fuser –ck /p3 Will kill the user processes

# umount –f /p3 Force the partition to unmount

# TERM=sun# export TERM Executes this 2 command to enable the VI editor to work properly

# ps –ef | grep voldVold is the daemon taking care of auto mounting CD-Rom.

# volcheck Will check any media present in CD-Rom or Floppy drive

# /floppy/floppy0 Floppy get mounted here automatically# /cdrom/cdrom0 CD-Rom get mounted here automatically

# /etc/init.d/volmgt stop (or) start

# eject cdrom Will eject the CD-Rom if the vold is running

# fdformat –t dos /dev/rdiskette To format a floppy with DOS mode

# fdformat To format the floppy in Solaris Format.

Module – 5 Installation

Solaris 9 OE Installation and Upgrade options

Solaris suninstall programSolaris Web Start Installation softwareCustom Jumpstart procedureSolaris Web Start Flash InstallationStandard upgradeSolaris Live Upgrade method

# grep METACLUSTER /var/sadm/system/admin/.clustertoc To know cluster config

# cat /var/sadm/system/admin/CLUSTER To know the installed cluster config CLUSTER=SUNWCXall

Module – 6 Package Administrtaion /var/sadm/install/contents file has all the details about installed packages.

# grep showrev /var/sadm/install/contents Will show whether showrev package is installed or not

/var/sadm/pkg directory maintains a record of all installed packages

# pkginfo | more Will show all installed packages# pkginfo –l SUNWman Shows information about SUNWman package# pkginfo –d /cdrom/cdrom0/s0/Solaris_9/Product | more To view info about pkg in CD

# pkgadd –d /cdrom/cdrom0/Solaris_9/Product SUNWxip

# pkgchk SUNWman If the pkgchk command doesn’t display a message, it indicates the package was installed successfully# pkgchk –v SUNWzip To list the files contained in a software package# pkgchk –p /etc/shadow To determine if the contents and attributes of a file have changed since it was installed with its software package# pkgchk –l SUNWman Lists info about selected diles that make up a package

# pkgrm SUNWzip Will remove the SUNWzip package

# pkgadd –d /cdrom/cdrom0/Solaris_9/Product –s spool SUNWzipIt will dump the SUNWzip package to /var/spool/pkg folder. Alternate path can be given instead of spool like /pkg etc.,

# pkgrm –s spool SUNWman Will delete the dumped SUNWman package from spool directory

# admintool & Tool (GUI) used to add users, printers, groups, softwares etc.,# prodreg & Tool (GUI) to view installed packages as well as to install & uninstall packages.

Module – 7 Managing Software Patches

Solaris9/PatchReport A summary of all patches for the solaris 9 OE release9_Recommended.README Instruction for how to intall the recommended patch.

# showrev –p (or) # patchadd –p Will show installed patches

/var/sadm/patch - Info about all patches that are currently installed.

Patch Name 6 digit number-revision number (117753-01)

# /usr/bin/zcat 105050-01.tar.z | tar xvf -

# cd /var/tmp# patchadd 105050-01 Will add patch

When you remove a patch, the patchrm command restores all files that were modified or replaced by that patch, unless

The patch was installed with the patchadd –d option (Which instructs the patchadd command not to save copies of files being updated or replaced)

The patch is required by the another patch The patch has been obsoleted by a later patch

# patchrm 105050-01 Will remove patch

Installing Patch Cluster# cd 9_Recommended# ./install_cluster

/var/sadm/install_data/Solaris_9_Recommended_log

Module – 8 Executing Boot PROM Commands

# /usr/platform/’uname –m’/sbin/prtdiag –v To know the OpenBoot version

Stop+D Press this keys when system power is turned ON to switch to diagnostic mode This key sequence is not available on a serial port terminal

Stop+N Press while the system is turned ON to set the NVRAM parameters to defaultStop+A To get into boot PROM

/etc/default/kbd - Remove the comment for the line KEYBOARD_ABORT=disable to turn off Stop+A function inside OS. Then issue the command kbd –I

ok go To comeout of PROM prompt

ok banner Shows system configuration

ok printenv Shows all variables

ok reset-all Will save the changes and clear the buffer & reboot the system

ok .registers Displays the contents of the registers

ok show-devs Shows all device with physical pathok devalias Shows currently available devices

In sparc if we change values. There is no option to come out without saving.

ok probe-ide Shows ide details and device connectedok probe-scsi Shows scsi details and device connectedok probe-scsi-all Identifies devices on all all SCSI busesok probe-fcal-all Identifies devices on all fibre channel loops

ok nvalias <alias name> /pci@if,......................ok nvunalias <alias name> To delete alias name

ok show-disks Desplays and allows a selection of device pathsok show-ttys

ok show-displaysok show-netsok show-tapes

ok help Shows list of helpok help floppy ejectok test Runs self-test on specified systems

ok sync Manually attempts to flush memory and synchronize FS

ok boot Boot the systemok boot –r Detect new devices (Reconfiguration boot)ok boot –s Single user modeok boot –v Verbose mode – boot the system and shows the background detailsok boot –a Interactive mode. Prompt user for user input for all the process at boot timeok boot –rv (or) –sv

ok printenv auto-boot? auto-boot?=falseok printenv boot-device To know the variable details boot-device=diskok setenv auto-boot? True To change value to true for “auto-boot?” variable auto-boot?=trueok printenv diag-switch? Diag-switch?=falseok setenv diag-switch? True

ok set-defaults Reset all settings to factory defaultok setenv boot-device disk cdrom netok set-default boot-device Will reset the default value of boot-device variable

ok power-off Will switch off the system immediately

Inside OS

# eeprom Equivalent to printenv# eeprom auto-boot Auto-boot?=true# eeprom auto-boot?=false# eeprom diag-switch?=true

Module – 9 Performing Boot and Shutdown Procedures

Run Levels

0 ok modes or S Solaris OE single user mode with critical FS mounted1 Single user administrative state with access to all FS available2 Multiuser can access the system . All sys daemons are running except NFS3 Multiuser operations with NFS & N/W resource available4 Reserved5 Poweroff6 Reboot

# who –r Shows current run level

Boot Sequence

1. Boot PROM phase2. Boot program phase3. Kernel initialization phase4. init phase

/etc/inittab id(S3) rstat(3) action(wait) Contains details about init levels

/etc/vfstab /etc/inittab /etc/system Important Files

/etc/system moddir root device and root FS config exclude forceload set

Always make a copy of /etc/system file before you edit the same. In case of problem , issue the interactive boot command : boot –a. When prompting for system file. Enter the path of backup file for /dev/null for a null configuration file.

/etc/init.d Directory contains many process or services like volume management

/sbin Each run level has an associated rc scripts located in this directory (eg /sbin/rc0)The RC scripts rc0, rc5 & rc6 are hard linked to each other. Run control scripts are located in /etc/init.d directory and these files are hard-linked to corresponding run control sctipts in the .etc.rc#.d directories.

Creating New Run Control Scripts

Create the script in the /etc/init.d directory and create links in the appropriate /etc/rc#.d directory for the run level in which the service is to be started and stop.

# vi /etc/init.d/filename# chmod 744 /etc/init.d/filename# chgrp sys /etc/init.d/filename# cd /etc/init.d# ln filename /etc/rc#.d/S##filename# ln filename /etc/rc#.d/K##filename# /etc/init.d/filename start To test the filename

# init 2 Switch the run level to 2

# shutdown Will moves to maintenance mode# shutdown –y –g300 –i6 “The system is being rebooted” Reboots after 300 seconds. Default is 60 sec# shutdown –i0 (or) i5 (or) –i6

# halt Shutdown the system immediately to ok prompt# poweroff Equivalent to init5# reboot Equivalent to init6 These 3 commands won’t ececute rc0 kill scripts.

Module – 10 Performing User Administration

/etc/passwd 7 fields loginID:x:UID:GID:comment:home_dir:login_shell

0 - 99 UID Reserved system user accounts100 – 60000 UID for users range0 Root60001 Reserved for the nobody account60002 Reserved for noaccess account To generate error message65534 nobody4 The anoynomous user account

/etc/shadow 9 fields loginID:password:lastchg:min:max:warn:inactive:expire:reserved/etc/group groupname:group-pwd:GID:user-list

/etc/default/passwd Set values for the following parameters MAXWEEKS MINWEEKS PASSLENGTH(valid entries are 6,7 & 8) WARNWEEKS

1970 –-> V41986 Sun released first OS (sunos1.0)

# useradd –u <UID> –g <GID> –G GID,GID,.. –d /export/home/user300 –m –s /bin/ksh –c “Regular User” user300# passwd user300# useradd –d /export/home/user305 –m user305# useradd user306

# usermod [-u uid [-o]] [-g gid] [-G gid] [-d dir] [-m] [-s shell] [-c comment] [-l newloginname] loginname# usermod –l <new user name> –d /export/home/<new user name> –m <old user># usermod –u <UID> user301 Change uid to 905# usermod –s /bin/csh user301

# userdel user301 Delete the user account not the home dir# userdel –r user301 Delete user id & home dir

# groupadd [-g gid [-o]] groupname# groupadd –g <GID> <groupname># groupmod [-g gid [-o]] [-n name] groupname# groupmod –n <newgrpname> <oldgrpname># groupmod –g 400 class Change GID to 400 for the group class

# groupdel group1

/etc/profile The Bourne, Korn and BASH shells execute this initialization file/etc/.login The C shell looks for and executes this initialization file during logon.There are no default global initialization files for the Z or TC shells

Bourne /etc/profile $HOME/.profile /bin/sh /etc/skel/local.profileKorn /etc/profile $HOME/.profile /bin/ksh /etc/skel/local.profile

$HOME/.kshrcC /etc/.login $HOME/.cshrc /bin/csh /etc/skel/local.cshrc

$HOME/.login /etc/skell/local.login

Setting Environment Variables

Bourne or Korn shell VARIABLE=value; export VARIABLEFor example: PS1=”$HOSTNAME”; export PS1

C setenv variable valueFor example: setenv LPDEST laserprinter

# id user301 Shows UID of the user & primary group# id –a user301 Shows secondary group details also

# groups user300 Shows the users groups

# chown –R <username>:grpname <directory>

# pwconv To sync passwd and shadow files.

/etc/skel Template files get copied once user id is created.

By default /etc/skel/.profile file don’t have any content.

Profile Order

/etc/motd file Message of the day/etc/profile/$HOME/.profile

Module – 11 Performing System Security

# who List of users currently logged in to the local system. The command refers /var/adm/utmpx to obtain information# who –m Info about only the current terminal window

# rusers -l Displays a list of the users logged in on local and remote hosts.

# finger –m usera Displays info about the user and host name of user login session

# last Displays a record of all logins and logouts (/var/adm/wtmpx)# last –n 5 reboot To view the last five system reboot times only

Recording Failed Login Attempts

# touch /var/adm/loginlog File to log incorrect login. If a user tries to login 5 times (default) with wrong password a entry is created here.# chown root:sys /var/adm/loginlog# chmod 600 /var/adm/loginlog

# /usr/ucb/whoami Current login name# who am i Login name of the original user

Monitoring su Attempts

/etc/default/su File monitoring su login info

CONSOLE VARIABLE# CONSOLE=/dev/console Remove the comment (#) symbol. So that root can login remotely by su command.SULOG VARIABLESULOG=/var/adm/sulog Specifies the file location of the log file

Controlling System Access

# /etc/default/login file

CONSOLE=/dev/console This line should be commented to login as root from remote system

PASSREQ=YES Enforces that each user should have password to login

/etc/ftpd/ftpusers Lists names of users prohibited from connecting to system through FTP/etc/ftpusers Solaris 8

/etc/hosts.equiv & $HOME/.rhosts Files to determine if a remote user is allowed to access the local host, with the identity of a local user. This procedure first check /etc/hosts.equiv and then $HOME/.rhostshostnamehostname username+

If a uses local host’s /etc/hosts.equiv file contains the host name ofa a remote host, then all regular users of that remote host are trusted and do not need to supply a password to login to the local host. Wherease the /rhosts file applies to a specific user

/etc/inetd.conf File used to control all services

# svcadm disable (or) enable ftp (or) telnet in solaris 10

# rsh 140.40.40.151# rcp 140.40.40.151:/test/file1 . To copy remote system file to local# rcp $HOME:/file1 140.40.40.151:/tmp To copy local files to remote system

# chown user2 file7 To change owner of a file# chown –R user2 dir4 To change ownership for folder and all its subfolders# chown user3:class file7 Changing both the individual and group ownership in one shot

# chgrp class file4 To change the group ownership of a file or directory

Setuid Permission on Executable Files

When the setuid permission is set on an executable file, a user or process that runs this executable file is granted access based on the owner of the file.# ls –l /usr/bin/su _ rs r_xr_x 1 root sys ………….The setuid permission displays as an “s” in the owners executable field. You should disallow the use of setuid programs or at least restrict their use

# chmod 4555 <executable_file> To set setuid permission on a executable.# find / -perm –4000 To search for setuid files

Setgid Permission on Executable Files

When the process runs, it runs as if it were a member of the same group in which the file is a member. Also access is granted based on the permission assigned to that group# ls –l /usr/bin/write _ r _ r_sr_x 1 root …………. Displays as “s” in the group’s execute field

# chmod 2555 <executable_file># chmod g+s <shared_directory> To set setgid for a directory# find / -perm –2000 To search for setgid files

Sticky Bit Permission on Public Directories

If the directory permission have the sticky bit set, a file can be deleted only by the owner of the file/directory or the root user.

# ls –ld /tmp drwxrwxrwt 6 root sys …… Displays as “t” in the execute field for other.

# chmod 1777 <public_directory># find / -type d –perm –1000 To search for sticky bit directory

Module – 12 Configuring Printer Services

/etc/lp Directory contains a hierarchy of LP server configuration directories and files/var/spool/lp Directory contains a list of current requests that are in the print queue./var/lp.logs On going history of print requests/var/lp/logs/requests Completed print request job$HOME/.printers file to set default printer (_default printername)/etc/printers.conf Contains entry for printers

# lpadmin –p printerB –c <classname> Creating and adding printer class# lpadmin –p printerD –c bldg2 Adding printerD to bldg2 class# accept <classname> To queuing print request# lpstat –t To check the status of the new printer class# lp –d <classname> myfile To print myfile to printer class

# lpadmin –d printername (or) printer_classname To set it as default# lpstat –d To check the system’s default printer# lpadmin –d bldg2 To change the default printer# lpadmin –x printername To remove a client’s printer configuration

# /usr/sadm/admin/bin/printmgr & Print Manager

Removing a Server’s Printer Configuration

# reject printerD Stop queuing print requests# disable printerD Stop the printer# lpadmin –x printerD Delete the printer config from the /etc/lp/printers and /etc/printers.conf

# /usr/lib/lpsched Print services started# /etc/init.d/lp start Starting by script# /usr/lib/lpshut Stop print services# /etc/init.d/lp stop Stopping by script

Module – 13 Using Print Commands

# /usr/bin/lp filename Print to default printer# /usr/bin/lp –d printername filename # /usr/ucb/lpr filename# /usr/ucb/lpr –p printername filename

LP Print Service Administration Command

# /usr/sbin/accept printerD Permits print requests to be queued# /usr/sbin/reject –r “Replacing cartridge” printerD Stop queuing print requests# /usr/bin/enable printerD Activates the specified printers# /usr/bin/disable Deactivates the specified printers# lpmove printerC printerA Moves print requests from one printerC to printerA# lpstat –o Viewing print queue# lpstat –a printerA To check whether it accepting print jobs

# lpmove printerC –32 printerC –33 printerA Moving individual print requestsModule – 14 Controlling System Processes

# /usr/dt/bin/sdtprocess & GUI tool for process monitoring

# prstat Displays info about active process (5 sec refresh interval)

Options for prstat command

-c . Continuously prints new reports below previous reports-n nproc Restricts the number of output lines-p pidlist Reports only on process that have PID-t Reports total usage summary for each users-u euidlist Reports only processes that have an EUID in the given list-U uidlist Reports only processes that have a real UID in the given list

# kill –signal PID# pkill –signal process

# pgrep –l mail To know PID# pkill sendmail To kill sendmail process

# ps –e | grep mail To know PID# kill 314 To kill mail process

# kill signal PID PID PID# pkill signal process process

Default signal is 15

1 SIGHUP Hnagup Stop & start with the same pid2 SIGNT Interrupt 9 SIGKILL Kill Kill forcibly15 SIGTERM Terminate Kill properly

# pkill -1 (or) –HUP sendmail# kill –SIGTERM (or) -15 <pid># kill –SIGKILL (or) -9 <pid># kill –SIGHUP (or) -1 (or) –HUP <pid>

# renice –n -10 195 To change priority-20 Highest priority for a process0 Neutral priority+20 Least priority

# psrinfo shows how long the system is running

# ps –e Shows all system process# ps –ef Default process details with command or service name# ps –ef | grep cron To view specific process

# at 9:00 pmat> find /export/home/user2 –name core rm {} \;

at> Ctrl+D# at nowat> banner “welcome” > /dev/pts/4at> ctrl+d#

# at –l 1016078400.a Reports jobs schedule

# atq Shows the at jobs queue

# ls –l /var/spool/cron/atjobs Directory contains the at jobs

# at –r 1016078400.a To remove the at job

/etc/cron.d/at.deny We can add username to this file to deny access to at jobs/etc/cron.d/at.allow We can add username to this file to allow access to at jobsIf neither file at.allow & at.deny file does not exist only the root user can use the at command.

Crontab File Format0-59 0-23 1-31 1-12 1-7 <command>Min Hour Date Month Days

# crontab –l View content of user crontab file# crontab –e Editing the file 30 17 * * 5 /usr/bin/banner “Time to go!” > /dev/console

# crontab –r username Remove a crontab file

/etc/cron.d/cron.deny Users in this file will deny access to use crontab command/etc/cron.d/cron.allow Users in this file will allow access to use crontab command

If we type only crontab as the command. It will go to process so if we press Ctrl+c then it won’t save the file but existing data will be present. When we press Ctrl+D then all the content will get deleted.

# crontab /root_cron To use a backup file for cron jobs. # /etc/init.d/cron stop (or) start

# /var/spool/cron/crontabs Directory where users crontab schedule files are getting stored.

# /var/spool/cron/atjobs Directory where AT jobs get saved

# svcadm enable (or) disable cron

Module – 15 Performing File System Backups

/dev/rmt/#hn h – Tape Density (l,m,h,c,u) n – no rewind

mt –f tape-device-name command countmt status Displays status info about the drivemt offline Rewind the tape and if appropriate takes the drive unit offlinemt rewind Rewinds the tapemt fsf count Moves the tape forward count records

# mt –f /dev/rmt/0n fsf 2 Positions the tape at the beginning of the third tape record

Level 0 MonthlyM T W Th F3 4 5 6 23 4 5 6 23 4 5 6 2

/etc/dumpdates Each line shows the FS that was backed up and the level of the last backup. Also shows the date, and the time of the backup(eg) /dev/rdsk/c0t2d0s6 0 fri jan 4 19:12:27 2005

When an incremental backup is performed the ufsdump command consults the /etc/dumpdates file. It looks for the date of the next lower level backup. Then the ufsdump command copies to the backup media all of the files that were modified or added since the date of that lower-level backup. When the backup is complete, the /etc/dumpdates file records a new wntry that describes this backup. The new entry replaces the entry for the previous backup at that level

Options for the ufsdump command

0-9 Backup levelsv Verify, After the tape is written for any discrepancies occurs Size estimatel Autoload, you use this option with an autoloading tape driveo Offline, When the backup is complete. Takes offline, rewinds, and if possible ejectu Updates the /etc/dumpdates filen Notify. Sends messages to the logged-in users terminals who are member of sys groupf device Specify the device

Tape Backup

Become root user, switch to single user mode, and unmount the FS# /usr/sbin/shutdown –y –g300 “System is being shutdown for backup”# umount /export/home# fsck /dev/rdsk/c0t0d0s7# ufsdump 0uf /dev/rmt/0 /dev/rdsk/c0t0d0s7Remote Backups

To perform remote backups across the network, the system with tape drive must have an entry in its /.rhosts file for every system that uses the tape drive

# ufsdump 0uf host2:/dev/rmt/0 /export/home

Module – 16 Performing File System restores

The ufsrestore command copies files to the disk, relative to the current working directory from backup tapes that were created by the ufsdump command.

Options for the ufsrestore Command

t Lists the table of the backup mediar Restores the entire FS from the backup mediax file1 file2 Restores only the files named on the command linei Invokes an interactive restorev Specifies verbose mode. Displays details of the restore operation on the screenf device Specifies the tape drive name

restoresymtable System creates this file when you restore an entire FS. The ufsrestore command uses this file for check=printing or passing information between incremental restores. You can remove this file when the restore is complete.

Restoring the /opt FS

# newfa /dev/rdsk/c0t0d0s5# mount /dev/dsk/c0t0d0s5 /opt# cd /opt# ufsrestore rf /dev/rmt/0# rm restoresymtable# cd /# umount /opt# fsck /dev/rdsk/c0t0d0s5# ufsdump 0uf /dev/rmt/0 /dev/rdsk/c0t0d0s5

Always restore a FS by starting with the level 0 backup tape, continue with the next lower level tape and continue through the highest level tape.

Restoring /usr FS

ok boot cdrom –s# newfs /dev/rdsk/c0t0d0s6# mount /dev/dsk/c0t0d0s6 /a# cd /a# ufsrestore rf /dev/rmt/0# rm restoresymtable# cd /# umount /a# fsck /dev/rdsk/c0t0d0s6# ufsdump 0uf /dev/rmt/0 /dev/rdsk/c0t0d0s6# init 6

Performing a special case Recovery of the /(root) FS

ok boot cdrom -s# newfs /dev/rdsk/c0t0d0s0# mount /dev/dsk/c0t0d0s0 /a# cd /a# ufsrestore rf /dev/rmt/0# rm restoresymtable

# cd /usr/platform/’uname –m’/lib/fs/ufs# installboot bookblk /dev/rdsk/c0t0d0s0# cd /# umount /a# fsck /dev/rdsk/c0t0d0s0# ufsdump 0uf /dev/rmt/0 /dev/rdsk/c0t0d0s0# init 6

Invoking an Interactive Restore

# cd /var/tmp# ufsrestore ivf /dev/rmt/0ufsrestore> ls Display the contents of the directory structure on the backup tapeufsrestore> cd directory1ufsrestore> lsufsrestore> add file1 file2 Add the files you want to be restore to the extraction listufsrestore> delete file1 to delete a file from the extraction listufsrestore> marked To view the marked extraction filesufsrestore> extract To restore the selected files from the backup tape

The ufsrestore command has to find the selected files. If you used more than one type for the backup, first insert the tape with the highest volume number and type the appropriate number at this point.

Set directory mde, owner, and timesSet owner/mode for ‘.’?[yn] n Answering y sets ownership and permission of the temp directory to those of the directory structure on the tape

ufsrestore> quit

Move/copy the restored files to their original or permanent directory and delete from the temp directory

Performing an Incremental Restore

Always start with the last volume and towards the first. The system uses info in the restoresymtable file to restore incremental backups on top of the latest full backup.

# more /etc/dumpdates | grep c0t0d0s7# newfs /dev/rdsk/c0t0d0s7# mount /dev/dsk/c0t0d0s7 /export/home# cd /export/home# ufsrestore rvf /dev/rmt/0Load the next lower level tape into the tape drive and issue the following command# ufsrestore rvf /dev/rmt/0

Alternate Steps (5 & 6)

# ufsrestore iv /dev/rmt/0ufsrestore> lsufsrestore> add *ufsrestore> extractufsrestore> q

Load the next tape and perform the below operation

# ufsrestore ivufsrestore> lsufsrestore> add*ufsrestore> extractufsrestore> q

Module – 17 Backup up a Mounted FS with a UFS Snapshot

/usr/sbin/fssnap –F FsType –V –o special-options(s) mount-point | special

Options for the fssnap command

-d Deletes the snapshots associated with the given FS. If –o unlink option was used when you built the snapshot, the backing store file is deleted together otherwise it has to be deleted manually-F FsType Specifies the FS type to be used-i Displays the state of an FSType snapshot-v Echos the complete command line, but does not execute the command-o Enables you to use special options. Such as the location & size of bs file

# fssnap –F ufs –o bs=backing_store_path /file_system# fssnap –F ufs –o bs=/var/tmp /export/home /dev/fssnap/0

backing store file The snapshot subsystem saves FS data in this file. The fssnap command creates the backing-store file and two read-only virtual devices. The block virtual device, /dev/fssnap/0, can be mounted as a read-only FS. The raw virtual device, /dev/rfssnap/0.

You can limit the size of the backing-store file by using the –o maxsize=n option.If the backing-store file runs out of disk space, the system automatically deleted the ufs snapshot.

# fssnap –F ufs –o bs=/var/tmp,maxsize=500m /export/home# fssnap –I Displays a list of all the current UFS snapshots on the system

0 /export/home1 /usr2 /database

# /usr/lib/fs/ufs/fssnap –I /export/home Shows the details for the /export/home snapshot

Performing a backup of a UFS Snapshot

# mkdir –p /backups/home.bkp Creating an empty directory# mount –F ufs –o ro /dev/fssnap/0 /backups/home.bkp Mounting the block virtual device# cd /backups/home.bkp# tar cvf /dev/rmt/0(or)# ufsdump 0uf /dev/rmt/0 /dev/rfssnap/0# ufsrestore tf /dev/rmt/0 To verify

Performing an Incremental Backup of a UFS Snapshot

Use ufsdump with the N option to create an incremental UFS snapshot. Which writes the name of the device being backed up, rather than the name of the snapshot device to the /etc/dumpdates file

# ufsdump 1ufN /dev/rmt/0 /dev/rdsk/c1t0d0s0 /dev/rfssnap/0# ufsrestore tf /dev/rmt/0 To verify

# fssnap –d /extra(Source FS) To remove a snapshot# rm /var/tmp/snapshot0

Restoring Data from a UFS Snapshot Backup

The backup created from a virtual device is a backup of the original FS when the UFS snapshot was taken. You can restore a UFS snapshot from a backup tape in the same manner as you would the backup of an original FS

# cd /usr# ufsrestore if /dev/rmt/0ufsrestore> add demoufsrestore> extractufsrestore> quit

Deleting a UFS Snapshot

# umount /dev/fssnap/0# fssnap 0d /export/home# rm /backing_store_file

Module – 1 Describing Interface Configuration

To know MAC Address of NIC Card

ok banner# ifconfig –a8:0:20:93:c9…. Sun manufacturing NIC card

Hme0 qfe0 eri0 leo0 Sun NIC card types

# ifconfig hme0 down To down the NIC# ifconfig hme0 up To up the NIC

# ping –s 140.40.0.123 Continuous pinging

# snoop To display incoming & outgoing packets. Press Ctrl+c to stop the snoop utility# snoop IP1 IP2 To capture communication between two systems# snoop –a dhcp To turn on audible clicks for all network traffic related to a dhcp boot# snoop –V Summary verbose output# snoop –v Detailed verbose output# snoop –o filename Redirects the snoop utility output to filename in summary mode# snoop –i filename Displays packets that were previously captured in filename

/etc/hosts Link file to /etc/inet/hosts/etc/inet/hosts Should contain IP & hostname

32 virtual interdace is possible Hme0:1 hmeo:2 ….. hme0:32

Configuring IPv4 Interfaces at Boot Time

/etc/rcS.d/S30network.sh - file

# cat /etc/hostname.hme0 Sys41 (or) 192.168.30.41

# cat /etc/inet/hosts192.168.30.41 sys41

plumb To sync the IP and the config files

Changing the System Hostname /etc/nodename File to change hostname/etc/hostname.xxn/etc/inet/hosts/etc/net/tictls/hosts/etc/net/ticots/hosts/etc/net/ticotsord/hosts

The /etc/net/tic* directories contains a host file. These files contain config info for transport independent network services. If these files become corrupted, unpredictable results can occur.

# sys-unconfig For total reconfiguration

Module – 2 Describing the Client Server Model

inetd (Internet Service Daemon) Responsible for On-Demand services eg. Telnetd, ftpd/etc/inetd.conf Config file for inetd daemon

To turn-off a service, add a symbol to the beginning of the corresponding to that service in the /etc/inet.conf file, and send a HUP request.# pkill –HUP inetd Restarting the inetd services

/etc/inet/services Services file/etc/inet/protocols Registered protocols are listed here

Network Ports Well-known ports & ephemeral (short-lived) portsPort Assignment Central Authority (Well-known) & Dynamic Binding (ephemeral)

Central Authority Ports 0 – 1024Dynamic Binding 1024 – 65000

Starting Services that use a Well-Known Port1. Services that start by default at system boot time (eg. Sendmail)2. Services start on-demand (eg. telnet)

Starting RPC Services1. Services that start by default at system boot time2. Services start on-demand

The rpcbind process (Daemon) associates RPC program numbers with port numbers. /etc/rc2.d/S71rpc script initializes the rpcbind service (port 111)rpcbind - 111 port number - Resposible for rpc services/etc/rpc Config file for rpc services

# grep rpcbind /etc/services sunrpc 111/udp rpcbind sunrpc 111/tcp rpcbind

# rpcinfo –p rpcbind information Prog No Version Protocol Port Service Name# rpcinfo –d 1002(Prog No) 1(Version) Deleting RPC service registration

Module – 3 Customizing the SMC

# /etc/init.d/init.wbem status (or) stop (or) start SMC Service (port 898)# smc Starting the console# smc edit Starting the toolbox editor

http://hostname:898/toolboxes/smc/smc.tbx

Module – 4 Managing swap configuration

Virtual Memory = RAM + Disk SpaceSwap Slice | Swap File | RAM } Swap Space

# swap –s Summary of virtual swap space# swap –l Lists the details of systems physical swap (eg. Swap file)

Adding Swap Space

# vi /etc/vfstab /dev/dsk/c1t0d0s3 - - swap - no -# swap –a /dev/dsk/c1t0d0s3 To add swap space from HDD slice.

Adding Swap File

# mkfile 20m /export/data/swapfile Swap file allocation# swap –a /export.data.swapfile# swap –l To list the details of the modified system swap space# swap –s List a summary of the modified system swap space# vi /etc/vfstab /export/data/swapfile - - swap - no -

Removing Swap Space

# swap –d /dev/dsk/c1t0d0s3 Also remove entry from vfstab

Removing Swap File

# swap –d /export/data/swapfile# rm /export/data/swapfile Also remove entry from vfstab

Module – 5 Managing Crash Dumps & Core Files

When an OS has a fatal error, it generates a crash dump file (crash dump). When a process has a fatal error, it generates a core file.

If the Solaris OE kernel encounters a problem or when an unexpected hardware fault occurs, the panic routine is executed. Where memory contents are copied to a disk partition defined as a dump device.

When an OS crashes, the savecore command is automatically executed during a boot. The savecore command retrieves the crash dump from the dump device and the writes the crash dump to a pair of files in your FS.It places kernel core info in the /var/crash/nodename/vmcore.X fileIt places name list info & table info in the /var/crash/nodename/unix.X file

By default, the dump device is a swap partition. The swap partition contains temp data, therefore permanent data is overwritten by the crash dump.

# dumpadm To view the current dump configurationDump Content : Kernel pages (or) Application Pages (or) AllDump device : /dev/dsk/c0t0d0s1 (swap)Savecore directory : /var/crash/host1Savecore enabled : yes

# cat /etc/dumpadm.conf Content of dumpadm command

Changing the Crash Dump configuration

/usr/sbin/dumpadm [-nuy] [-c content-type] [-d dump-device] [-m mink | minm \ min%] [-r root-dir] [-s savecore-dir]

-n Modifies the dump config so it does not run the savecore command automatically on reboot

-u Forcibly updates the kernel dump config based on the contents of /etc/dumpadm.conf-y Modifies the dump config so that the savecore command is run automatically on

reboot. This is default-c content-type The content type can be kernel, all, or curproc. The curproc includes

the kernel, memoty pages and the memory page of the currently executing process

-d dump-device The dump device cab be an absolute path of swap-m mink | minm | min% Creates a minfree file in the current savecore-dir-r root-dir Specifies an alternative root directory relative to which dumpadm

command should create files. The default root dir “/” is used.-s savecore-dirTo mention savefiles dir. The default is /var/crash/hostname

Managing Core File Behavior

A core file is a point-in-time copy (snapshot) of the RAM allocated to a process. The copy is written to a more permanent medium, such as a HDD. A core file is useful in analyzing why a particular program crashed.

When a core file occurs, the OS generated two possible copies of the core files, one copy known as the global core file and the other copy known as per process core file. All depends on options in effect. Global core file is created in mode 600 and is owned by the superuser. Ordinary per-process core files are created in mode 600 under the credentials of the process.

# coreadm Displays the currnet core file configglobal core file pattern : Identifies the name to use for core files placed in global directoryinit core file pattern : core Identified the default name that per-process core files must useglobal core dumps : disabled Indicates global core files are disabledper-process core dumps : enabled global setid core dumps : disabledper-process setid core dumps : disabledglobal core dump logging : disabled

# cat /etc/coreadm.conf Content of coreadm command

You can enable or disable two configurable core file paths, per-process and global, separately. If a global core file path is enabled and set to /corefiles/core, for eg. Then each process that terminates abnormally produces two core files: One in the current working directory, and one in the /corefiles/core directory.

coreadm [-p pattern] [pid]………. Users can run this commandcoreadm [-g pattern] [-I pattern] [-d option……] [-e option…..] only root user can run

-i pattern Sets the per-process core file name pattern from init to pattern-e option Enables the specified core file option

global Enables core dumps by using the global core patternprocess Enables core dumps by using the per-process core patternglobal-setid Enables setid core dump by using the global core patternproc-setid Enables setid core dumps by using the per-process core patternlog Generates a syslog (3) message when a user attempts to generate a

global core file-d option Disables the specified core file option. See the –e option for possible options-u Updates system-wide core file options from the config file /etc/coreadm.conf.-g pattern Sets the global core file name pattern to pattern. The pattern must start with a /-p pattern Sets the per-process core file name pattern to pattern.

Pattern options for the coreadm Command

%p PID%u EUID%g EGID%f Executable file name%n System node name (uname –n)%m Machine hardware name (uname –m)%t The time in seconds since midnight jan 1 1970%% Literal %

# coreadm –p core.%f.%p $$ When executed from a users $HOME/.profile (or) .login file sets the core file name pattern for all processes run during the login session. The $$ variable is the PID of the currently running shell. The per-process core file name pattern is inherited by all child processes.

# coreadm –p $HOME/corefiles/%n.%f.%p $$ This command places all of the user’s core files into the corefiles subdirectory of users home directory, differentiated by the system node name.

# coreadm –g /var/core/core.%f.%p –e global This sets system-wide parameters that add the executable filename and PID to the name of any core file that is created.# coreadm to verify that this parameter is now part of the core file configuration

# coreadm 278 5678 Search for the core dump file. Only the owner of a process or the superuser can query a process by using the coreadm command with a list of PIDs.

Module – 6 Configuring NFS

NFS Server Files

/etc/dfs/dfstab Lists the local resources to share at boot time/etc/dfs/sharetab Lists the local resources currently being shared./etc/dfs/fstypes Lists the default FS types for remote FS/etc/rmtab Lists FS remotely mounted by NFS clients/etc/nfs/nfslog.conf Lists info of the location of config logs used for NFS server logging/etc/default/nfslogd Lists config info describing the behavior of the nfslogd daemon

# cat /etc/dfs/dfstab share –F nfs –o ro /export.sys44_data

# cat /etc/dfs/sharetab /export/sys44_data - nfs ro

# cat /etc/dfs/fstypes nfs NFS Utilities autofs AUTOFS Utilities cachefs CACHEFS Utilities

# cat /etc/rmtab sys42:/export/sys44-data #sys41:/usr/share/man #sys43:/export/sys44_data The # entries are removed by the mountd daemon during a system startup

NFS Server Daemons

To start the NFS server daemons or to specify the number of concurrent NFS requests that can be handled by the nfsd daemon, use the /etc/rc3.d/S15nfs.server script

mountd Handles FS mount requests from remote systems, and provides access controlnfsd Handles client FS requestsstatd Works with the lockd daemon to provide crash recovery functions for the lock managerlockd Supports record locking operations on NFS filesnfslogd Provides operational logging

# /etc/init.d/nfs.server start To start NFS server daemon# /etc/init.d/nfs.server stop To stop NFS server daemon

NFS Server Commands

# share To share directory and also displays the contents of the /etc/dfs/sharetab file# unshare /test Unshare the share

# shareall Shares all resources listed in the /etc/dfs/dfstab file# unshareall /export/sys44_data Unshare currently shared file resources listed in the /etc/dfs/sharetab file

# dfshares Displays currently shared resources by using the NFS dameon mountd# dfshares 140.40.40.160 Lists available shared resources in remote system

# dfmounts Displays a list of NFS resources that are currently mounted and client list# dfmounts sys42 Displays NFS resources of sys42 that are currently mounted & clients

share [-F nfs] [-o options] [-d description] [pathname]

# share –o ro /export/sys44_data By default resources available with RW. Access decision is based on a comparison of the UID of the client and the owner.

The Share Command Options

ro Informs clients that the server accepts only read requestsrw Allows the server to accept read and write requests from the clientroot=client Informs client that the root user on the specified client system or systems can perform superuser-privileged requests on the share resource.ro=access-list Allows read requests from the specified access listrw=access-list Allows RW requests from the specified access list

Access List Options

access-list=client:client Allows access based on a colon-separated list of clientsaccess-list=@network Allows access based on a network number (eg @192.168.100 or a network name eg. @mynet.com). The network name must be defined in the /etc/networks fileaccess-list=.domain Allows access based on a DNS domainaccess-list=netgroup_name Allows access based on a config net group (NIS) or (NIS+)anon=n Sets n to be the effective user ID (EUID) of anonymous users. By default, anonumous users are given the EUID 6001-nobody user. If n is set to –1, access is denied.

# share –F nfs –o r0 direcctory Restricts access to read-only access.# share –F nfs –o r0,rw=client1 directory Restricts access to read-only, however, the NFS server accepts both read & write requests from the client client1

# share –F nfs –o root=client2 directory Allows the root user on the client named client2 to have superuser access to the NFS mounted resources

# share –F nfs –o ro,anon=0 directory By setting the option anon=0, the EUID for access to shared resources by an anonymous user is set to 0. The access is also set to read only.

# share- /export/sys44_data ro “”

Managing the NFS Client

NFS Client Files

/etc/vfstab Defines FS to be mounted locally/etc/mnttab Lists currently mounted FS including automounted directories./etc/dfs/fstypes Lists the default FS types for remote FS

NFS Client Daemons

The NFS client daemons are started using the /etc/rc2.d/S73nfs.client script

statd Works with the lockd daemon to provide crash recovery functionslockd Supports record-locking operations on NFS files

/etc/init.d/nfs.client start (or) stop

NFS Client Commands

dfshares Lists available shared resources from a remote or local NFS servermount Attach a file resource to a specified local mount pointumount Unmounts a currently mounted file resourcesmountall Mounts all file resources or a specified group of file resources listed in the /etc/vfstab file with a mount at boot value of yesumountall Unmounts all non-critical local and remote file resourcesdfmounts Displays a list of currently mounted NFS server directories

mount [-F nfs] [-o options] server:pathname mount-point

# mount sys44:/export/sys44_data /export/remote-data# mount –o ro sys45,sys43,sys41:/multi_home_data /remote_shared_data When mounting a read-only remote resources, you can specify a comma separated list of sources for the remote resources. Which are then used as a list of failover resources

# umount /export/remote-data Unmounting remote FS from the client

# mountall –r To limit the action of this command to remote file resources.# umountall –r To unmount all remote file systems

Mounting Remote Resources at Boot Time

Enter appropriate entries in the client’s /etc/vfstab file to mount the remote file resources at boot time.# vi /etc/vfstab sys44:/export/sys44_data - /export/remote-data nfs - yes soft,bg

Mount Command Options

rw | ro Read/Write or read-only. The default is read/writebg | fg Retry to mount in background or foreground. The default is to retry in the foreground soft | hard Soft option reports an error on the request, and stop trying when retrans=n reach. Whereas hard option prints a warning message and continue to try. Default is hard mountintr | nointr Enables or disabled the use of KB interrupts to kill aprocess that hangs on a hard-mounted FS. The default is intr.suid | nosuid Indicates whether to enable setuid execution. Default is setuid executiontimeo=n Sets the timeout to n tenth of a second. The default timemout is 11, measures in one-tenth of a second for UDP and 600 tenths of a second for TCP.retry=n Sets the no of times to retry the mount operation. Default is 10,000 timesretrans=n Sets the number of NFS retransmission to n. The default is 5 for UDP.

Enabling the NFS Server Logging

nfslogd daemon responsible for NFS logging

The /etc/nfs/nfslog.conf file defines the path, file names, and type of logging that the nfslogd daemon must use. There is a taq corresponding to each definition.

Eg. Of nfslog.conf file

# NFS server log configuration file

global defaultdir=/var/nfs \log=nfslog fhtable=fhtable buffer=nfslog_workbuffer

defaultdir=dir_path Specifies the default parent directorylog=logfile_pat Specifies relative or absolute path and the filename for the ASCII log filefhtable=table_path Specifies path and the filename for the file-handle-to-path DB filebuffer=buffer_path Specifies path and the filename for the raw buffer filelog format=basic | extended Specifies the format when creating user-redable log files

To easily identify the log files for different shared resources, place them in separate dir. For eg.

# cat /etc/nfs/nfslog.confglobal defaultdir=/var/nfs \

log=nfslog fhtable=fhtable buffer=nfslog-workbuffer

public defaultdir=/var/nfs/public \log=nfslog fhtable=fhtable buffer=nfslog-workbuffer

Create the /var/nfs/public directory before starting NFS server logging

Specify a tag by entering the tag to use with the log=taq option in the /etc/dfs/dfstab file. Use the log option without specifying a taq, which mean use the default global tagshare –F nfs –o ro,log /export/sys44_date

/etc/default/nfslogd The config info file controls the logging behavior of the nfslogd daemon.

Module – 7 Configuring AutoFS

The automount facility contains three componentsThe AutoFS FSThe automountd daemonThe automount command

The AutoFs map types

Master Map The auto_master map associates a directory, also called a mount point, with a map. Direct Map Lists the mount points as absolute path names. This map explicitly indicates the mount point on the client.Indirect Map Lists the mount points as relative path names. This map uses a relative path to establish the mount point on the client.Special Provides access to NFS servers by using their host names

# cat /etc/auto_master +auto_master /net -hosts -nosuid,nobrowse /home auto_home -nobrowse /xfn -xfn

SyntaxMount point map name(direct or indirect map) mount options(similar to standard mount options. But nobrowse option is an AutoFS specific mount option

The plus(+) symbol at th beginning of the +auto_maser line directs the automountd daemon to look at the NIS, NIS+, or LDAP databases before it reads the rest of the map. If this line is commented out, only the local files are searched unless the /etc/nsswitch.conf file specifies that NIS, NIS+, or LDAP should be searched.

The two mount points for special maps are –hosts map & -xfn mapThe –hosts map Provide access to all resources shared by NFS servers. The resources being shared by a server are mounted below the /net/hostname directory, or if only the server’s IP address is known below the /net/IPaddress directory. The server doesn’t have to be listed in the hosts database for this mechanism to work.

The –xfn map Provides access to resources acailable through the Federated Naming Service (FNS). Resources associated with FNS mount below the /xfn directory

Direct Map

# cat /etc/auto_master . . /- auto_direct -ro

The /- mount point is a pointer that informs the automount facility that the full path names are defined in the file specified by map-name(the /etc/auto_direct file in this example)

# cat /etc/auto_direct # Super User created direct map for automounter /apps/frame -ro,soft server1:/export/framemaker /opt/local -ro,soft server2:/export/unbundled /usr/share/man -ro,soft server3,server4:/usr/share/man

Indirect Map

The /home entry defines a mount point for an indirect map. The map auto_home list relative path names only. The Solaris 2.6 through Solaris 9 OE support browsing of indirect maps and special maps with the –browse option. The –nobrowse option disables the browsing of indirect maps. The default option is –browse

# cat /etc/auto_home +auto_home steven hosts5:/export/home/steven mary mars:/export/home/marry

Reducing the auto_home map to a single line

* server1:/export/home/&The client remotely mont the /export/home/loginID directory from the NFS server server1 onto the local mount point /home/loginID. Wildcard character(*) to match any key. The substitution character (&) at the end of the location is replaced with the matched key field.

Run the automount command when making changes to the master map or creating a direct map to make the changes effective. You do not have to stop and restart the automountd daemon after making changes to existing entries in a direct map.

Automount [-t duration] [-v]-t Specifies a time in seconds, the FS remains mounted when not in use. Default is 600 sec.

When to run the automount commandAutomount Map Run if entry is added/deleted Run if entry is modifiedMaster map yes yesDirect map yes noIndirect map no no

# cat /etc/mnttab -hosts /net autofs indirect,nosuid,ignore,nobrowse dev=4300001|1008255810 auto_home …………. -xfn ………….

# /etc/init.d/autofs start (or) stop

Module – 8 & 9 Solaris volume Mangement

metadb –a [-f] [-c n] [-l nnnn] disk_slice

-a Adds a stale database replica-f Force the creation of the initial replica, even if no replica exist. -c n Specifies the number of replicas to add to the slice-l nnnn Specifies the size of the new replica in blocksdisk_slice Specifies the name of the disk_slice that will hold the replica

# metadb –a –f c0t0d0s4 c0t0d0s5 c1t0d0s0 c1t0d0s1 To create metadb# metadb Reports the status of all replicas

RAID 0 Config

# metainit d10(name d0-dn) 3(total disk/slice) 1 c0t1d0s0 1 c0t1d0s1 1 c0t1d0s3# newfs /dev/md/rdsk/d10

# metaclear d10 Delete the volume

# metainit d0(partition name) –p d10(volume name) 1000m Creating partition

# metattach d0 999m To increase partition size

# growfs –M /m1(mount point) /dev/md/rdsk/d0 To create FS for extra space added

# metattach d10(volume) c0t1d0s4 To increase space for volume

RAID 5 Config

# metainit d20 –r(raid 5 option) c0t1d0s0 c0t1d0s1 c0t1d0s3

# metadb –d –f c0t1d0s7 To delete metadb

RAID 1 Config

# metainit d10 –m d0 To create mirrorThen reboot# metattach d10 d1 Attaching another disk to mirror

# metastat To check the status of mirror disk

Building a Mirror of the Root (/) File System

metainit –f concat/stripe numstipes width components……# metainit –f d0 1 1 c0t0d0s0 d0 concat/stripe is setup

# metainit d1 1 1 c0t1d0s0 d1 concat/stripe is setup

metainit mirror –m submirror [read_options] [write_options] [pass_num]

read_options-g Enables the geometric read option, which results in faster performance on sequential reads-r Directs all reads to th first submirror. Use this option, when the devices that comprise the first submirror are substantially faster than those of the second mirror.

You cannot use –r option with the –g option. If neither the –g nor –r options are specified, reads are made in a round-robin order from all submirros in the mirror. This process enables load balancing across the submirros.

write_optionsS Performs serial write to mirrors. The default setting for this option is parallel writePass_num A number (0-9) at the end of an entry defining a mirror that determines the order in which that mirror is resynchronized during a reboot. The default is 1. If 0 used resync is skipped. # metainit d10 –m d0 d10 : Mirror is setup

# metaroot d10 Updates /etc/system file also /etc/vfstab

# grep md /etc/vfstab /dev/md/dsk/d10 /dev/md/rdsk/d10 / ufs 1 no -

The metaroot command also updates the /etc/system file to contain the forceload statement that loads the kernel modules that support the logical volumes.

# tail /etc/system forceload : misc/md_hotspares forceload : misc/md_sp forceload : misc/md_stripe forceload : misc/md_mirro forceload : drv/pcipsy . . . rootdev:/pseudo /md@0.10.blk

You must reboot the system before attaching the secondary submirror# init 6# metattach d10 d1 d10: Submirror d1 is attached # ls –l /dev/dsk/c1t0d0s4Record the path that follows the /devices directory: /pci@if,0/pci@1/scsi@4......................

ok nvalias backup_root /pci@if,0/pci@1/scsi@4,1/disk@2,0:bok printenv boot-device boot-device=disk netok setenv boot-device disk backup_root net boot-device=disk backup_root net

ok boot backup_root To test the secondary submirror

Unmirroring the Root (/) File System

# metastat d10 To verify that status of the mirror# metadetach d10 d1 To make a one-way mirror d10: submirror d1 is detached# metaroot /de/dsk/c0t0d0s0 To change entries in /etc/vfstab and /etc/system# init 6# metaclear –r d10 To clear the mirror and submirror. The –r deletes metadevices d10: Mirror is cleared d0: Concat/Stripe is cleared# metaclear d1 d1: Concat/Stripe is cleared

Module - 10 ACL

entry-type:[UID or GID]:perm

Introducing ACL Commands

getfacl [-a] [-d] filename(s) Displays ACL entries for files-a Displays the filename, file owner, file group, and ACL entries for the specified file-d Displays the filename, file owner, file group, and default ACL entriessetfacl –m acl_entries filename Creats or modify ACL entries on filessetfacl –s acl_entries filename Substitute new ACL entries for old ACL entriessetfacl –d acl_entries filename Deletes one or more ACL entries on filessetfacl –f acl_file filename Specifies an ACL configuration file that contain ACL entries to set on other filessetfacl –r filename Recalculate the ACL mask baed on the ACL entries. When used with –m or –s option$ ls –l _rw_r__r__+ 1 userc staf 0 Jan 2 13:40 file2 A plus sign appears for files contains ACL permission

There are no effective permission listed for a file’s owner or “others’ users. However, the file’s group and any other specific users or groups present in the ACL list have effective permissions. When no ACL mask is specifically set o a file or directory, the ACL mask has the same permissions as the group permissions for that file or directory.

$ getfacl file1 No ACL entries present file : file1 owner : userc group : sysadmin user::rw_ group::r__ # effective:r__ mask:r__ other:r__

$ getfacl file2 Custom ACLentry present file : file2 owner : userc group : sysadmin user::rw_

user::usera:rwx # effective:r__ group::r__ # effective:r__ mask:r__ other:r__

The effective permission shows which permissions are allowed. When you compute the intersection (a Boolean logical AND operation) of the ACL entry and the ACL mask.

$ setfacl –m u:userb:7 file2 Set special permission to userb(username)$ getfacl file2 file : file2 owner : userc group : sysadmin user::rw_ user::usera:rwx # effective:r__ user:userb:rwx # effective:r__ group::r__ # effective:r__ mask:r__ other:r__

$ setfacl –d u:usera file2 Removing special permissions$ getfacl file2 file : file2 owner : userc group : sysadmin user::rw_ user:userb:rwx # effective:r__ group::r__ # effective:r__ mask:r__ other:r__

setfacl –s u::perm,g::perm,o:perm,m:perm,[u:UID:perm],[g:GID:perm] filename$ setfacl –s u::rwx,g::rw_,o:r__,m:rw_,u:usera:rwx file1$ getfacl file1 file : file1 owner : userc group : sysadmin user::rwx user:usera:rwx # effective:rw_ group::rw_ # effective:rw_ mask:rw_ other:r__

$ setfacl –s u::7,g::6,0:4,m:6,u:usera:7 file2

$ setfacl –r –m u:usera:7 file1 Change the umask value as well as to the user(Recalculating an ACL mask)$ getfacl file1 file : file1 owner : userc group : sysadmin user::rwx user:usera:rwx # effective:rwx group::rw_ mask:rwx

other:r__

getfacl filename1 | setfacl –f – filename2$ getfacl file1 | setfacl –f – file3 Copying an ACL List

You can set default ACL entries only on directories. You must set default ACL entries for the user, group, other, and ACL mask before you set a default ACL entry for an additional user of group.

$ pwd /export/home/userc$ mkdir dir1 drwxr_xr_x 2 userc sysadmin 512 Apr 29 17:11 dir1$ getfacl dir1 # file:dir1 # owner:userc # group:sysadmin user::rwx group::r_x # effective:r_x mask:r_x other:r_x

$ setfacl –m d:u::rwx,d:g::r_x,d:o:r_x,d:m:r_x dir1$ setfacl –m default:user:usera:rwx dir1$ getfacl dir1 # file:dir1 # owner:userc # group:sysadmin user::rwx group::r_x # effective:r_x mask:r_x other:r_x default:user:rwx default:user:usera:rwx default:group:r_x default:mask:r_x default:other:r_x

Effect of Default ACLs on New Subdirectories

When a directory contains a default ACL, the permissions granted to the user, group, and other categories for the directory represent the intersection of mode 777, which is the UNIX default for directories without umask influence.

When a subdirectory/file created, the permissions on the newly created subdirectory/file are generated according to the intersection between the default ACL entries and the permissions set initially during creation.

$ mkdir dir1/subdir1$ ls –l dir1 drwxr_xr_x+ 2 userc sysadmin 512 Apr 30 08:01 subdir1$ getfacl dir1/subdir1$ getfacl dir1/subdir1 # file:dir1/subdir1 # owner:userc

# group:sysadmin user::rwx group::r_x # effective:r_x mask:r_x other:r_x default:user:rwx default:user:usera:rwx default:group:r_x default:mask:r_x default:other:r_x

If default ACL entries changed for the dir1 it won’t affect the ACL of dir1/subdir1. But if we create new subdirectory the new ACL of the dir1 will get inherited.

$ setfacl –m d:group::rwx,d:group::rws,d:other:rwx,d:mask:rwx dir1$ mkdir dir1/subdir2$ getfacl dir1/subdir2 user::rwx group::rwx # effective:rwx mask:rwx other:rwx default:user::rwx default:user:usera:rwx default:group::rwx default:mask:rwx default:other:rwx$ cd dir1/subdir2$ touch filea$ ls –l _rw_rw_rw_+ 1 userc sysadmin 0 Apr 30 13:34 filea$ getfacl filea user::rw_ user:usera:rwx # effective:rw_ group::rw_ # effective:rw_ mask:rw_ other:rw_

The permission granted to the user, group, and other categories for filea represents the intersection of mode 666(default for files without umask influence) with the default entries associated with the directory are set to rwx, the example of intersection is clear.

The mask value doesn’t exceed the permissions assigned to the group. Eventhough the /dir1/subdir2 directory lists rwx as the default mask value inherit only upto rw_. The entry for usera was applied as a standard ACL entry and not as a default entry, because only directory replicate default entries.

Module – 11 RBAC (Role Based Access Control)

/etc/user_attr The extended user attributes database, which associates users and roles with authorizations and right profiles in addition to the /etc/passwd, /etc/group, and /etc/shadow files/etc/security/prof_attr The rights profile attributes database, which defines profiles, lists the profile’s assigned authorizations and any nested rights profiles,

and identifies the associated help files./etc/security/exec_attr The execution attributed database, which defines the privileged commands and scripts assigned to a profile./etc/security/auth_attr The authorization attributes database, which defines authorizations

and their attributes. This database also identifies the associated help file./etc/security/policy.conf File provides system default authorizations for users

The /etc/user_attr Database

user:qualifier(reserved):res1(reserved):res2(reserved):attr

attr : An optional list of semicolon separated (;) key value pairs that describe the security attributes to be applied when the user runs commands.type Can be normal or role. A role is assumed after the user has logged in.auths Specifies a list of authorization chosen from names defined in the auth_attr DBprofiles Specifies a list of profile names chosen from the /etc/security/prof_attr DBroles Specifies a list of role names defined in the same /etc/user_attr DB. Roles are indicated by setting the type value to role. Roles cannot be assigned to other roles.

sysadmin::::type=role;profiles=Device Management,Filesystem Management,Printer Managementjohndoe::::type=normal;auth=solaris.system.date;roles=sysadmin

The /etc/security/prof_attr Database

profname:res1:res2:desc(description):attr

attr : The security attrinutes to apply to the object upon execution. You can specify zero or more key. The two valid keys are help and auths.

# grep ‘Printer Management’ /etc/security/prof_attr Printer Management:::manage Printers, daemns, \……………………;auths=solaris.admin.printer.read, \

The Printer Management profile, which is defined in the /etc/security/prof_attr DB, is assigned to the sysadmin role in the /etc/user_attr DB.

The Printer management profile is defined in the prof_attr DB as having all authorizations, beginning with the solaris.admin.printer.string, assigned to it. These authorizations are defined in the /etc/security/auth_attr DB.solaris.admin.printer.read:::view printer information::\

The /etc/security/exec_attr Database

name:policy:type:res1:res2:id:attr

name Name of the profilepolicy The security policy associated with this entry. The suser (superuser policy model) is the only valid policy entry.type The type of entity. Whose attributes are specified. The only valid type is cmdid a string identifying the entity. Command should have full path or a path with wildcardattr euid and uid | egid and gid

Printer Management:suser:cmd:::/usr/sbin/accept:euid=lp

The /etc/security/auth_attr Database

You can assign authorization directly to users or roles in the /etc/user_attr DB. You can also assign authorizations to rights profiles, which are assigned to roles.

authname:res1:res2:short_desc:long_desc:attr

authname A unique character string that identifies the authorization in the prefix.suffix[.] format.

The /etc/security/policy.conf file

This file lets you grant specific rights profiles and authorization to all users. Two types of entries in the file areAUTHS_GRANTED=authorizationsPROFS_GRANTED=right_profiles

# cat policy.conf AUTHS_GRANTED=solaris.device.cdrw PROFS_GRANTED=Basic Solaris Users

# roleadd –m –d /export/home/tarback –m –c “Privileged tar backup role” –p “Media Backup, Media Restore” tarback-A authorization and -p profile Assign authorization and profiles respectively to the role.

# rolemod –A auth1,auth2 –p profile1,profile2 role1

Additional Commands Used to Perform RBAC Functions

auths Displays authorizations for a usermakedbm Makes a dbm filenscd Identifies the name service. Useful for caching the 4 RBAC DB detailspam_roles Identifies the role account management module for password authentication module (PAM)

pfexec Identifies the profile shells used to execute commands with attributes specifies

in exec_attrpolicy.conf Identifies the config file for the security policy. Lists granted authorizationprofiles Displays profiles for a specified userroles Displays roles granted to a userroleadd Adds a role account to the systemrolemod Modifies the role’s account info in the systemroledel Deletes a role’s account from the system

Example

Profile Privilege to profile Creating Role Role to profile Role to user

/etc/security/prof_attr Contains profile details

Creating profile in prof_attruadd::Profile for user admininit:::Profile for init process

/etc/security/exec_attr Privilege to profileuadd:suser:cmd:::/usr/sbin/useradd:euid=0uadd:suser:cmd:::/usr/sbin/usermod:euid-0init:suser:cmd:::/usr/sbin/init:euid=0init:suser:cmd:::/usr/sbin/shutdown:euid=0

Creating Role# roleadd –d /export/home/role1 –m role1# passwd role1

Role to Profile# rolemod –P uadd,init role1

Adding role to user# usermod –R role1 user1

/etc/user_attr Details about role & user to role

Login as normal user Switch to role profile & use the privilege command

/etc/security/auth_attr Authorization file Config file for users & this roles

Module – 12 Performing Smartcard Authentication

# /usr/dt/bin/sdtsmartcardadmin & To start smartcard console

ATR – Answer to reset Number (unique)

# smartcard –c disable Disabling smartcard operation

# smartcard –c admin Display the current client and server configuration

# /etc/smartcard/opencard.properties Config File

Module – 13 Configuring System Messaging

The syslog system messaging features track system activities and events. You can manually generate log messages by using the logger command. The syslog function, the syslogd daemon, and input from the /etc/syslog.conf file work together to facilitate system messaging for the solaris 9 OE.

The /etc/syslog.conf file

This file consists of two tab-separated fields: selector and action. The selector field has two components, a facility and a level written as facility.level. Facility represent categories of system processes that can generate messages. Levels represent the severity or importance of the message. The action field determines whether to send the message.

*.err /var/adm/messages Error messages for all facilities are sent to the /var/adm/messages

Only use tabs as white space in the .etc.syslog.conf file. The Solaris OE accesses the /usr/include/sys/syslog.h file to determine the correct facility.level sequencing order.

Selector Fields (facility) Options

kern Messages generated by the kerneluser Messages generated by user processes and don’t have default priority for messagesdaemon System daemon, such as the in.ftpd and the telnetd daemonauth The authorization system, including the login, su, and ttymon commandssyslog Messages generated internally by the syslogd daemonlpr The line printer spooling system, such as the lpr and lpc commandsnews Files reserved for the USENET network news systemuucp The UNIX to UNIX copy (uucp) system does not use the syslog functioncron The cron and at facilities, including crontab, at, and cronlocal0-7 Fields reserved for local use.mark The time when the message was last saved and produced by the syslogd daemon* All facilities, except the mark facility.

You can use the asterisk (*) to select all facilities (for eg. *.err); however, you cannot use * to select all levels of a facility (for eg. Kern.*)

The levels in descending order of severitySelector Fields (level) OptionsLevel Priority Description

emerg 0 Panic conditions that are normally broadcast to all usersalert 1 Conditions that should be corrected immediatelycrit 2 Warnings about critical conditions, such as hard device errorserr 3 Errors other than hard device errorswarning4 Warning messagesnotice 5 Non-error conditions that might require special handlinginfo 6 Informational messages

debug 7 Messages that are normally used only when debugging a programnone 8 Messages are not sent from the indicated facility to the selected file

Not all levels of severity are implemented for all facilities in the same way.

Action Field The action field defines where to forward the message. This field can have any one of the following entries

/filename The targeted file@host The @sign denoted that messages must be forwarded to a remote host. Messages are forwarded to the syslogd daemon on the remote hostuser1, user2 The user1 and user2 entries receive messages if they are logged in* All logged in users will receive messages

You must restart the syslogd daemon whenever you make any changes to /etc/syslog.conf file# /etc/init.d/syslog stop (or) start# pkill –HUP syslogd

Syslogd started It’s starting the M4 Macro Processor M4 will read the /etc/syslog.conf file.

Configuring syslog Messaging

The inetd daemon uses the syslog command to record incoming network connection requests made by using TCP. You can modify the behavior of the inetd daemon to log TCP connections by using the syslogd daemon. The daemon facility and the notice message level are supported by inetd.Use the –t option as an argument to the inetd daemon to enable tracing of TCP services. When you enable the trace option for the inetd daemon, it uses the daemon.notice to log the client’s IP address and TCP port number, and the name of the service. Add the –t option to the entry which activated the inetd daemon in the inetsvc script located in the /etc/init.d directory

# grep inetd /etc/init.d/inetsvc /usr/sbin/inetd –s –t You must restart the inetd daemon for the new option to take effect

# grep daemon.notice /etc/syslog.conf *.err;kern.debug;daemon.notice;mail.crit /var/adm/messages

Monitoring a syslog File in Real Time

The tail –f command holds the file open so that you can view messages being written to the file by the syslogd daemon.

# tail –f /var/adm/messages Press Ctrl+c to exit

Adding One-Line Entries to a System Log File

logger [-i](logs PID) [-f file] [-p priority] [-t tag] [message]

# logger system rebooted If the user.notice field is configured in the /etc/syslog.conf file, the message is logged to the file designated for the user.notice selector field

# logger –p user.err system rebooted Changing the priority of the messages to user.err route the messages to the /var/adm/messages file as indicated in the /etc/syslog.conf file# logger –i –p2 “crit”

/dev/sysmsg ConsoleModule – 14 Using Name Services

Name Services DNS, NIS, NIS+, LDAP

/etc/rc2.d/S72inetsvc script Starts DNS during system boot./etc/rc2.d/S71rpc script Starts NIS & NIS+ during system boot/etc/rc2.d/S72directory script Starts iPlanet Server during system boot.

Name Service Feature SummaryFeature DNS NIS NIS+ LDAP_____ Namespace Hierarchical Flat Hierarchical Hierarchical

Data Storage Files/Resoruce Two column Multicolumn Directoriesrecords maps tables (varied)

Server Types Master/Cache/ Master/ Root Master/ Master/Cache only/ Slave non-root mast. ConsumerForwarding Replica

Transport TCP/IP TCP/IP TCP/IP TCP/IP

Scale WAN LAN LAN WAN_______________________________________________________________________

The name service switch file determines which services a system users to search for information and in which order the name services are searched. All Solaris OE systems uses the /etc/nsswitch.conf file as the name service switch file. The nsswitch.conf is loaded with the contents of a template file during the installation of the Solaris OE depending on the name service that is selected.

Name Service Name Service TemplateLocal Files /etc/nsswitch.filesDNS /etc/nsswitch.dnsNIS /etc/nsswitch.nisNIS+ /etc/nsswitch.nisplusLDAP /etc/nsswitch.ldap

Configuring the Name Service Cache Daemo (nscd)

The nscd daemon is a process that provides a cache for the most common name service requests. The /etc/nscd.conf file controls the behavior of the nscd daemon. The nscd daemon provides caching for passwd, group, hosts, ipnodes, exec_attr, prof_attr and user_attr databases. Each line specifies either an attribute and a value or an attribute, a cache name, and a value.

# /etc/init.d.nscd stop (or) start

The getent command provides generic retrieval interface to search many name service database. As a system administrator, you can query name service information sources with tools, such as the ypcat NIS namespacenslookup DNSldaplist LDAPBt these tools are not consulting nsswitch.conf file. Whereas getent command searches the information sources in the order in which they are configured in the name service switch file. So if there is any error in the file will be identified with this command.

getent database [key]…..database The name of the database to be examined. This name can be passwd, group, hosts, ipnodes, services, protocols, ethers, networkds, or netmasks.

# getent passwd lp lp:x:71:8:Line Printer Admin:/usr/spool/lp:

# getent group 10 staff::10:

# getent hosts sys44 192.168.38.44 sys44 loghost (loghost will be absent if the NIS is searched first)

Module – 15 Configuring Name Service Clients

Configuring a DNS ClientThe client resolver code is controlled by the following files/etc/resolv.conf Contains directive to specify the scope of a query/etc/nsswitch.conf Contains the reference to DNS for the hosts entry

Configuring the DNS Client During Installation

Select DNS Give Domain Name Enter IP Address Enter search Domains Confirm

Editing DNS Client Configuration Files

# vi /etc/resolv.conf domain digigeeks.com nameserver 140.40.40.152 search digigeeks.com List the local domain as the first argument to the search

Copying the /etc/nsswitch.dns File to the /etc/nsswitch.conf

# cp /etc/nsswitch.dns /etc/nsswitch.conf# cat /etc/nsswitch.conf ……… hosts files dns ……..

If you want to add DNS name resolution to a system currently running a name service, such as NIS or NIS+. You must place the dns keyword on the hosts line in the specific location, along with other keywords.

# cat /etc/nsswitch.conf ….. hosts: nfs files dns …..Setting up an LDAP Client

The LDAP server cannot be a client of itself. Getting this configuration to work properly requires changes to the LDAP server and the LDAP client. The ldap_cachemgr daemon is responsible for maintaining and updating the changes to the client profile information.

Configuring LDAP Client During Installation Select LDAP Enter Domain Name Enter Profile Name & Profile Server IP Address Confirm

Initializing the Native LDAP Client

You execute the ldapclient command on the client system once to initiate the client as a native LDAP client. The ldapclient command creates two files in the ./var/ldap directory on the LDAP client. These files contain info that the LDAP client use when binding to and accessing LDAP data./var/ldap/ldap_client_cred The proxy agent info that the client uses for LDAP authentication/var/ldap/ldap_client_file The config info from the client profile in the LDAP server DB

# ldapclient init –a proxy password=proxy –a proxy DN=cn=proxyagent, ou=profile, dc=suned.com, dc=sun –a domainname=suned.com 192.168.0.100

# ldapclient list

Copying the /etc/nsswitch.ldap to the /etc/nsswitch.conf

During LDAP client initialization the /etc/nsswitch.ldap file is copied over the /etc/nsswitch.conf file

# ldaplist To list naming info from LDAP server

# ldapclient uninit Unconfiguring LDAP Client

Module – 16 NIS Master Server Config

NIS maps are located in /var/yp/domainname directory(where domainname is the name of the NIS domain). There are two files (.pag and .dir files) for each map in this directory. Eg./var/yp/training/hosts.byname.pag file/var/yp/training/hosts.byname.dir file/var/yp/training/hosts.byaddr.pag file/var/yp/training/hosts.byaddr.dir file

The syntax for the NIS map is map.key.pag and map.key.dir

Ypcat [-k] mname To retrieve values from NIS name service map, mname can be either a

map name or a map nickname# ypcat hosts localhost 127.0.0.1 localhost sysprint 192.168.30.70 sysprint sys44 192.168.30.44 sys44 loghost

ypmatch [-k] value mname Prints values associated with one or more keys from the NIS name services map specified by the mname argument.# ypmatch sys44 hosts sys44: 192.168.30.44 sys44 loghost# ypmatch usera passwd usera: usera:LojyTdiQev5i:3001:10::/export/home/usera:/bin/ksh

NIS Domain ContainsOne NIS Master ServerNIS Slave Servers (Optional)NIS Clients

The NIS Master Server

Contains the original /etc/ASCII files used to build the NIS mapsContains the NIS maps generated from the ASCII filesProvides a single point-of control for the entire NIS domain

NIS Slave Servers

Do not contain the original /etc/ASCII filesContains copied of the NIS maps copied from the NIS Master ServerProvides a a backup repository for NIS map informationProvides redundancy in case of server failureProvides load sharing on large networks

NIS Clients

Do not contain original /etc/ASCII filesDo not contain any NIS mapsBind to the master server or to a Slave Server to obtain access to the administrative file information contained in that server’s NIS mapsDynamically rebind to another server in case of server failureMake all appropriate system calls aware of NIS

NIS Processes

The main daemons involved in the running of an NIS domain areThe ypserv daemon Responds to client information requestsThe ypbind daemon Client to server bindingThe rpc.yppasswd daemon Password change update in master serverThe ypxfrd daemon Push the map to slave servers (sync)The rpc.ypupdated domain Update NIS maps using the config stored in /var/yp/updates

The NIS Slave Server contains upserv and ypbind daemon

The NIS Clients contains only ypbind daemon

The three most common search orders areSearch files and then NISSearch NIS and then filesForward hosts lookup requests from NIS to DNS

Introducing NIS Security

The /var/yp/securenets file to restrict access to a single host or to a subnetwork, and using the passwd.adjunct file to limit access to the password information across the network.

The /var/yp/securenets File

If exist on an NIS server, the server only answers queries or supplies maps to hosts and networks whose IP Address exist in the file. The server must be part of the subnet to access itself.# cat /var/yp/securenets # Two methods of giving access to a system. Using the netmask followed by the IP Address

# or host keyword followed by the IP Address host 127.0.0.1

255.255.255.0 150.10.1.0 host 13.13.14.1 host 13.13.14.2

If you modify entries in the /var/yp/securenets file. You must kill and restart the ypserv and ypxfrd daemons.# /usr/lib/netsvc/yp/ypstop (or) ypstart

The passwd.adjunct File

Encrypted password are normally hidden from the user in the /etc/shadow file. With the default NIS configuration, however the encrypted password string is shown as part of passwd maps. This file prevents unauthorized users from seeing the encrypted passwords. # ypmatch –k usera passwd usera: usera:LojyTdiQev512:3001:10:/export/home/usera:/bin/ksh

The passwd.adjunct file contains the account name preceded by ## in the password field. Subsequent attempts to gain account ino, using the ypcat or ypmatch commands, returnds the password entry from the passwd adjunct file.# ypmatch –k usera passwd usera: usera:##usera:3001:10:/export/home/usera:/bin/ksh

Configuring NIS Domain

To locate the source file in another directory, modify the /var/yp/Makefile file:Change the DIR=/etc line to DIR=Your choiceChange the PWDIR=/etc line to PWDIR=/your-choice

Before you make any modification to the /var/yp/Makefile, save a copy of the original Makefile file.

The NIS configuration script /usr/sbin/ypinit and the make utility generate NIS maps. The ypinit command reads the Makefile for source file locations, and converts ASCII scource files into NIS maps.The /etc/defaultdomain file sets the NIS domain name during system boot.

Important files on the NIS Master (Part 1) hosts, passwd & shadow

Important files on the NIS Master (Part 2) The /var/yp/domainname directory is the repository for the NIS maps created by the ypinit script.The /var/yp/binding/domainname directory contains the ypservers file where the names of NIS Master server and NIS Slave server are stored.

Important files on the NIS Master (Part 3) The /usr/netsvc/yp directory contains the ypstop and ypstart commands that stop and start NIS services respectively

# /usr/sbin/ypinit –m This command prompts for a list of other machies to become NIS slave servers.

Configuring the NIS Master Server

Core, End User or Developer software configuration cluster do not have all necessary files in the /usr/lib/netsvc/yp directory to allow a host to function as an NIS server.

1. Copy the /etc/nsswitch.nis file to the /etc/nsswitch.conf file. If necessary, modify the file2. Enter the domainname command to set the local NIS domain # domainname classroom.central.sun.com3. Create an /etc/defaultdomain file with the domain name4. If the files do not already exist, use the touch command to create zero-length files. /etc/ethers, /etc/bootparams, /etc/locale, /etc/timezone, /etc/netgroup and /etc/netmasks. These files are necessary for the creation of the complete set of NIS maps.5. Install and update Makefile file in the /var/yp directory.6. Create or populate the /etc/locale file, and make an entry for each domain on your network using the following format domainname locale eg. Classroom.central.sun.com en_us7. Initialize the master server by using the local /etc files # ypinit –m Provide slave server names and Ctrl+D to save the details. Press n for “Terminate it on the first fatal error”Note: If you have to restart the ypinit program, You are prompted to destroy the /var/yp/domainname directory. Answer Y8. # /usr/lib/netsvc/yp/ypstart

Testing the NIS Service

$ ypcat hosts Prints value from an NIS map# ypmatch sys41 localhost hosts

192.168.30.41 sys41 127.0.0.1 localhost loghost$ ypwhich To identify the master server sys41

Configure the NIS Client

1. Copy the /etc/nsswitch.nis file to the /etc/nsswitch.conf file

2. Edit the /etc/inet/hosts file to ensure NIS master and slave servers have been defined.3. # domainname domainname To set the local NIS domain4. Create and populate the /etc/defaultdomain file with the domain name5. # ypinit –c To initialize the system as an NIS client6. Enter the names of the NIS Master and all Slave Servers7. # /usr/lib/netsvc/yp/ypstart8. # ypwhich –m To test the functionality

Configuring NIS Slave Server

Follow the client configuration steps and perform the below command# ypinit –s master Command to initialize the system as an NIS slave server. Where master is the name of the NIS master. Start the service and test the functionality

Updating the NIS Map

1. Updates the text files in your source directory (typically /etc, unless it was changed in the Makefile file)2. # cd /var/yp 3. # /usr/ccs/bin/make Refresh the NIS database maps using the make utility

Updating NIS Password Map

If the NIS master is running the rpc.yppasswdd daemon, any client system can update the NIS password map by using the yppasswd or passwd commands.1. Run the rpc.yppasswdd daemon on the NIS master server # /usr/lib/netsvc/yp/rpc.yppassed /$PWDIR/passwd –m passwd

Updating the NIS Slave Server Map

The following steps manually update the NIS timezone map on the master server and propagate all maps to the slave servers1. Edit the source file on the NIS Master # vi /etc/timezone2. Remake and push the NIS maps to slave servers # cd /var/yp; /usr/ccs/bin/make3. If the push fails. Manually pull only the timezone map from the master server by performing the below command in Slave server # /usr/lib/netsvc/yp/ypxfr timezone.byname # ypinit –s nis_master To pull all of the maps at once

Sometimes maps fail to propagate, and you must manually use the ypxfr command to retrieve new map information. You can use shell scripts to run cron jobs for automatic update. The Solaris OE provides several template scripts in the /usr/lib/netsvc/yp directory that you can use and modify to meet your local site requirement.

ypxfr_lperhour script To sync NIS Slave Servers passwd mapypxfr_lperday script To sync NIS Slave Servers NIS maps for the group, protocols, networks, services, and upservers keys.Ypxfr_2perday script To sync NIS Slave servers nIS maps for the hosts, ethers, netfroups keys, and mail aliases.

Quick Reference

# domainname digit.com Create domain name

# domainname > /etc/defaultdomain Creating domainname file

# cp /etc/nsswitch.nis /etc/nsswitch.conf

# /var/yp/Makefie Config file

Makefile 4 parts

1 – Declaration2 – Details of centralization3 – Coding for mapping4 – Declaration of original path

# cd /var/yp

# ypinit –m Initializing the master server# ypinit –s Initializing the slave server# ypinit –c Initializing the clientCtrl+D To save the fileIs this correct? [y/n] yNon fatal error [y/n] n

If there is any error follow the below procedure

# cd /etc# touch ethers bootparams netgroup netmasks timezone# cd /var/yp# ypinit –m# /usr/lib/netsvc/yp/ypstart To start the daemons

# ypwhich Shows the map server detailsSolaris

# ypwhich –m Full details of map

A directory will be created with domain name

# cd /var/yp/digit.com Contains all config file with .pag & .dir extensions

# ypcat <filename> to read the file

# ypcat –k passwd With arguments print keys as well as values

# ypmatch –k root passwd

NFS Config

# vi /etc/dfs/dfstab share /export/home share /usr/man.orig

# /etc/init.d/nfs.server stop# /etc/init.d/nfs.server start

# useradd –d /export/home/Chennai1 –m Chennai1# useradd –d /export/home/Chennai2 –m chennai2

# passwd chennai1# passwd Chennai2

Remove the /export in the /etc/passed file for user chennai1 & chennai2. So the home dir is /home/chennai1

Autofs Config

# vi /etc/auto_master comment +auto_master to search in WW /home auto_home -nobrowse / auto_direct -

# vi /etc/auto_direct /usr/share/man 140.40.40.151:/usr/share/man.orig

# vi /etc/auto_home comment +auto_home chennai1 140.40.40.151:/export/home/chennai1 chennai2 140.40.40.151:/export/home/chennai2

# automount –v

# cd /var/yp

# /usr/ccs/bin/make To update the map after any config change

Include auto direct in Makefile in 2, 3, & 4 section

# /usr/lib/netsvc/yp/ypstop#/usr/lib/netsvc/yp/ypstart

NIS Client Config

# domainname digit.com

# domainname > /etc/defaultdomain

# vi /etc/hosts140.40.40.151 Solaris

# cp /etc/nsswitch.nis /etc/nsswitch.conf# ypnit –c Give master server name Solaris

# /usr/lib/netsvc/yp/ypstart

rpcbind done – client has only ypbind daemon

Slave server has ypserve & ypbind daemon

NIS Slave Config

# ypinit –s Solaris (Master Server)

Before configuring slave, client config should be done.Module – 17 JumpStart

Four Main Services

Boot ServicesIdentification ServicesConfiguration ServicesInstallation Services

Implementing a Basic Jumpstart Server

1. Spool the OS image2. Edit the sysidcfg file3. Edit the rules and profile files4. Run the check script5. Run the add_install_client scripts6. Boot the client

# cd /export# mkdir config# mkdir sol_dump# cd /cdrom/cdrom0/s0/Solaris_9/Misc/Jumpstart_sample/# cp –r * /export/config/# cd /cdrom/cdrom0/s0/Solaris_8/Tools# ./setup_install_server /export/home/sol_dump Copying solaris dump to local directory# cd /cdrom/cdrom0/Solaris_9/Tools/# ./add_to_install_server /export/home/sol_dump Appending 2nd CD content# cd /etc

# vi ethers 8:0:20:a6:aa:2b ultra5 (hostname)

# vi /etc/hosts140.40.40.154 ultra5

# vi /etc/timezone Asia/Calcutta ultra5

# cd /export/config/

# vi rules hostname ultra5 - host_class finish_script

- Pre Install script

host_class Config details like partitionfinish_script Post install scripts

# vi host_class install_type initial_install system_type standalone partitioning explicit Cluster SUNWXall filesys c0t0d0s0 10000 / filesys c0t0d0s1 550 swap filesys c0t0d0s7 free /export/home

# vi finish_script touch /a/noaushutdown rm /a/etc/defaultdomain rm –r /a/var/yp/digit.com cp /a/etc/nsswitch.files /a/etc/nsswitch.conf

# vi sysidcfg System identification & configuration. Timezone can also be given here security_policy=none name_service=none network_interface=primary [netmask=255.255.0.0 protocol_ipv6=no] timezone= Asia/Calcutta system_locale=en_US

Time zone are listed in the directory structure below the /usr/share/lib/zoneinfo directory. Locales are listed in the /usr/lib/locale directory

# chmod 755 finish_script# ./check To check the config

# vi /etc/dfs/dfstab share –o anon=0 /export/home/sol_dump share –o anon=o /export/config

# cd /var/yp# /usr/ccs/bin/Make# cd /export/home/sol_dump/solaris_9/Tools# ./add_install_client –c 140.40.40.151:/export/config –p 140.40.40.151:/export/config ultra5(hostname) sun4u# update the NIS file with make command

From Client

ok boot net –install Will search the network and start the installation automatically

Before a Jumpstart client can boot and obtain all of the NFS resourctes it requires, every directory listed as an argument to the add_install_client script must be shared by the server on which it resides.

Setting Up a Boot-Only Server

A boot server responds to RARP, TFTP, and bootparams requests from jumpstart clients and provides a boot image using the NFS service.

1. Running the setup_install_server script with the –b option to spool a boot image from CD-Rom or DVD

2. Running the add_install_client script with options and argument that shows a list of servers and the identification config, and installation services that they provide.

Executing the setup_install_server script# mkdir /export/install# cd /cdrom/cdrom0/s0/Solaris_9/Tools# ./setup_install_server –b /export/installExecuting the add_install_client scriptBefore you run the script, update the hosts and ethers information for the jumpstart client

/etc/inet/hosts192.10.10.4 client1

/etc/ethers8:0:20:9c:88:5b client1

The boot server must have entry in /etc/inet/hosts file for each server you specify while you run add_install_client script.# cd /export/install/Solaris_9/Tools# ./add_install_client –c server1:/export/config –p server1:/export/config client1 sun4u

Configuring NIS for Jumpstart Procedures

Configuring NIS to support jumpstart procedures involves editing files and running commands on the NIS master server in use. Info supplied in the sysidcfg file overrides any information you make available in NIS.

A change to any file that is represented by a map in an NIS domain requires that you complete the following steps on the NIS master server

# vi /etc/inet/hosts 192.10.10.4 client1# vi /etc/ethers 8:0:20:88:5b client1# vi locale client1 en_US# cd /var/yp# vi Makefile1. Add the text after the existing *.time entries. Duplicate the timezone entry, and replace timezone with localeAdd/Append the word locale to the line beginning with the word allAdd the following line after the auto.home: autohometime entryLocale: locale.timeSave the file and exit the editor# cd /var/yp# /usr/ccs/bin/make2. On any slave servers that exist in the NIS domain, run the ypxfr command to transfer the locale.byname map for the first time.# /usr/bin/netsvc/yp/ypxfr locale.byname3. On the NIS master server, again update the NIS maps by running the make command

# cd /var/yp# /usr/ccs/bin/make

# vi /etc/timezone US/Mountain client1 US/Mountain Central.sun.com# cd /var/yp# /usr/ccs/bin/make

# /vi /etc/netmasks 192.9.200.0 255.255.255.0# cd /var/yp# /usr/ccs/bin/make

Each time you run the add_install_client script on a boot server to provide boot support for a jumpstart client, the script checks the /etc/nsswitch.conf file for the bootparams entry.

Begin ScriptProfileFinish Script

Use can use CD/DVD soruces as boot source instead of spooled Solaris OE Image. Also you can use a Flash source as an alternative installation service.

Identifying Log Files

Jumpstart clients retain the following log files during the installation process:/tmp/begin.log/tmp/finish.log/tmp/install_log/var/sadm/system/logs/sysidtool.log

Jumpstart clients retain a corresponding set of log files after the installation process completes and the system reboots/var/sadm/system/logs/begin.log/var/sadm/system/logs/finish.log/var/sadm/system/logs/install_log/var/sadm/system/logs/sysidtool.log

Module – 18 Flash

# flarcreate –n flash_archive –R / -C –x /flash /flash/flash_archive

flash_archive Any name can be given-R To mention root path-C To compress the archive file-x To exclude folders while creating archive image-t Create an archive on a tape device

Administering a Flash Archive

flare –i archive Retrievs info about the archive

flare –c archive Combines the individual sections that make up an existing archive into a new archiveflare –s archive Splits an archive into one file for each sections of the archive

/etc/ethers Mac address and hostname/etc/hosts IP Address and hostname

# cd /export/config# vi rules Same as Jumpstart content# vi host_class Same as Jumpstart content except few options install_type flashinstall archive_location nfs 140.40.40.160:/flash/flash_archive partitioning …. …. …

# vi finish_script Same as Jumpstart content# vi sysidcfg Same as Jumpstart content# ./check To check the config# cd /export/home/sol_dump/solaris_9/Tools# ./add_install_client –c 140.40.40.160:/export/config –p 140.40.40.160:/export/config ultra5(hostname) sun4u

NFS Shares /flash folder /export/config folder