the perfect server - centos 6.4 x86_64 (nginx, dovecot, ispconfig 3)

The Perfect Server - CentOS 6.4 x86_64 (nginx,Dovecot, ISPConfig 3)The Perfect Server - CentOS 6.4 x86_64 (nginx, Dovecot, ISPConfig3)Version 1.0Author: Falko Timme

Follow me on TwitterLast edited 03/22/2013

This tutorial shows how to prepare a CentOS 6.4 x86_64 server for the installation of ISPConfig 3, and howto install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the followingservices through a web browser: nginx web server, Postfix mail server, MySQL, BIND nameserver,PureFTPd, SpamAssassin, ClamAV, Mailman, and many more. Since version 3.0.4, ISPConfig comes withfull support for the nginx web server in addition to Apache; this tutorial covers the setup of a server that usesnginx, not Apache.

Please note that this setup does not work for ISPConfig 2! It is valid for ISPConfig 3 only!

I do not issue any guarantee that this will work for you!

ISPConfig 3 Manual

In order to learn how to use ISPConfig 3, I strongly recommend to download the ISPConfig 3 Manual.

On more than 300 pages, it covers the concept behind ISPConfig (admin, resellers, clients), explains how toinstall and update ISPConfig 3, includes a reference for all forms and form fields in ISPConfig together withexamples of valid inputs, and provides tutorials for the most common tasks in ISPConfig 3. It also lines outhow to make your server more secure and comes with a troubleshooting section at the end.

ISPConfig Monitor App For Android

With the ISPConfig Monitor App, you can check your server status and find out if all services are running asexpected. You can check TCP and UDP ports and ping your servers. In addition to that you can use this appto request details from servers that have ISPConfig installed (please note that the minimum installedISPConfig 3 version with support for the ISPConfig Monitor App is 3.0.3.3!); these details includeeverything you know from the Monitor module in the ISPConfig Control Panel (e.g. services, mail andsystem logs, mail queue, CPU and memory info, disk usage, quota, OS details, RKHunter log, etc.), and ofcourse, as ISPConfig is multiserver-capable, you can check all servers that are controlled from yourISPConfig master server.

For download and usage instructions, please visit http://www.ispconfig.org/ispconfig-3/ispconfig-monitor-app-for-android/.

1 Requirements

The Perfect Server - CentOS 6.4 x86_64 (nginx, Dovecot, ISPConfig 3) http://www.howtoforge.com/book/print/7358/1/all

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To install such a system you will need the following:

Download the two CentOS 6.4 DVDs from a mirror next to you (the list of mirrors can be found here:http://isoredirect.centos.org/centos/6/isos/x86_64/).a fast Internet connection.

2 Preliminary Note

In this tutorial I use the hostname server1.example.com with the IP address 192.168.0.100 and the gateway192.168.0.1. These settings might differ for you, so you have to replace them where appropriate.

3 Install The Base System

Boot from your first CentOS 6.4 DVD (DVD 1). Select Install or upgrade an existing system:

It can take a long time to test the installation media so we skip this test here:


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The welcome screen of the CentOS installer appears. Click on Next:

Choose your language next:


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Select your keyboard layout:

I assume that you use a locally attached hard drive, so you should select Basic Storage Devices here:


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You might see the following warning - Error processing drive. If you see this click on the Re-initializeall button to proceed:

Fill in the hostname of the server (e.g. server1.example.com), then click on the Configure Network button:


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Go to the Wired tab, select the network interface (probably eth0) and click on Edit...:

Mark the Connect automatically checkbox and go to the IPv4 Settings tab and select Manual in theMethod drop-down menu. Fill in one, two, or three nameservers (separated by comma) in the DNS serversfield (e.g. 8.8.8.8,8.8.4.4), then click on the Add button next to the Addresses area:


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Now give your network card a static IP address and netmask (in this tutorial I'm using the IP address192.168.0.100 and netmask 255.255.255.0 for demonstration purposes; if you are not sure about the rightvalues, http://www.subnetmask.info might help you). Also fill in your gateway (e.g. 192.168.0.1) and clickon the Apply... button:

The network configuration is now finished. Click on the Next button:


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Copyright 2013 Falko TimmeAll Rights Reserved.

The Perfect Server - CentOS 6.4 x86_64 (nginx,Dovecot, ISPConfig 3) - Page 2

Choose your time zone:


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Give root a password:

Next we do the partitioning. Select Replace Existing Linux System(s). This will give you a small/boot partition and a large / partition which is fine for our purposes:

Select Write changes to disk:


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The hard drive is being formatted:

Now we select the software we want to install. Select Basic Server, then check CentOS in theadditional repositories field, choose Customize later and click on Next:


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The installation begins. This will take a few minutes:

Finally, the installation is complete, and you can remove your DVD from the computer and reboot it:


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After the reboot, log in as root.

I want to install ISPConfig at the end of this tutorial which comes with its own firewall. That's why Idisable the default CentOS firewall now. Of course, you are free to leave it on and configure it to yourneeds (but then you shouldn't use any other firewall later on as it will most probably interfere with theCentOS firewall).

Run...

system-config-firewall-tui

... and disable the firewall. Hit OK afterwards:

Confirm your choice by selecting Yes:


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If you did not configure your network card during the installation, you can do that now. Run...

system-config-network

... and go to Device configuration:

Select your network interface:


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Then fill in your network details - disable DHCP and fill in a static IP address, a netmask, yourgateway, and one or two nameservers, then hit Ok:

Next select Save:


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You can also specify additional nameservers. Select DNS configuration:

Now you can fill in additional nameservers and hit Ok:

Hit Save&Quit afterwards:


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You should run

ifconfig

now to check if the installer got your IP address right:

[root@server1 ~]# ifconfigeth0 Link encap:Ethernet HWaddr 00:0C:29:00:85:AC inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe00:85ac/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:278 errors:0 dropped:0 overruns:0 frame:0 TX packets:86 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:28503 (27.8 KiB) TX bytes:16360 (15.9 KiB)

lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

[root@server1 ~]#

Check your /etc/resolv.conf if it lists all nameservers that you've previously configured:

cat /etc/resolv.conf

If nameservers are missing, run

system-config-network

and add the missing nameservers again.

Now, on to the configuration...



4 Adjust /etc/hostsNext we edit /etc/hosts. Make it look like this:

vi /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4192.168.0.100 server1.example.com server1

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6


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5 Configure The Firewall

(You can skip this chapter if you have already disabled the firewall at the end of the basic system installation.)

I want to install ISPConfig at the end of this tutorial which comes with its own firewall. That's why Idisable the default CentOS firewall now. Of course, you are free to leave it on and configure it to yourneeds (but then you shouldn't use any other firewall later on as it will most probably interfere with theCentOS firewall).

Run

system-config-firewall

and disable the firewall.

To check that the firewall has really been disabled, you can run

iptables -L

afterwards. The output should look like this:

[root@server1 ~]# iptables -LChain INPUT (policy ACCEPT)target prot opt source destination

Chain FORWARD (policy ACCEPT)target prot opt source destination

Chain OUTPUT (policy ACCEPT)target prot opt source destination[root@server1 ~]#

6 Disable SELinux

SELinux is a security extension of CentOS that should provide extended security. In my opinion youdon't need it to configure a secure system, and it usually causes more problems than advantages (thinkof it after you have done a week of trouble-shooting because some service wasn't working asexpected, and then you find out that everything was ok, only SELinux was causing the problem).Therefore I disable it (this is a must if you want to install ISPConfig later on).

Edit /etc/selinux/config and set SELINUX=disabled:

vi /etc/selinux/config

# This file controls the state of SELinux on the system.# SELINUX= can take one of these three values:# enforcing - SELinux security policy is enforced.# permissive - SELinux prints warnings instead of enforcing.# disabled - No SELinux policy is loaded.SELINUX=disabled# SELINUXTYPE= can take one of these two values:# targeted - Targeted processes are protected,# mls - Multi Level Security protection.SELINUXTYPE=targeted


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Afterwards we must reboot the system:

reboot

7 Enable Additional Repositories And Install Some Software

First we import the GPG keys for software packages:

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*

Then we enable the RPMforge and EPEL repositories on our CentOS system as lots of the packagesthat we are going to install in the course of this tutorial are not available in the official CentOS 6.4repositories:

rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

cd /tmpwget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpmrpm -ivh rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

(If the above link doesn't work anymore, you can find the current version of rpmforge-release here:http://packages.sw.be/rpmforge-release/)

rpm --import https://fedoraproject.org/static/0608B895.txtwget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpmrpm -ivh epel-release-6-8.noarch.rpm

We also need to enable the Remi RPM repository which contains the php-fpm package which we willinstall later on:

rpm --import http://rpms.famillecollet.com/RPM-GPG-KEY-remirpm -ivh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

yum install yum-priorities

Edit /etc/yum.repos.d/epel.repo...

vi /etc/yum.repos.d/epel.repo

... and add the line priority=10 to the [epel] section:

[epel]name=Extra Packages for Enterprise Linux 6 - $basearch#baseurl=http://download.fedoraproject.org/pub/epel/6/$basearchmirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearchfailovermethod=priorityenabled=1priority=10gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6


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[...]

Then do the same for the [remi] section in /etc/yum.repos.d/remi.repo, plus change enabled to 1:

vi /etc/yum.repos.d/remi.repo

[remi]name=Les RPM de remi pour Enterprise Linux $releasever - $basearch#baseurl=http://rpms.famillecollet.com/enterprise/$releasever/remi/$basearch/mirrorlist=http://rpms.famillecollet.com/enterprise/$releasever/remi/mirrorenabled=1priority=10gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remifailovermethod=priority

[remi-test]name=Les RPM de remi en test pour Enterprise Linux $releasever - $basearch#baseurl=http://rpms.famillecollet.com/enterprise/$releasever/test/$basearch/mirrorlist=http://rpms.famillecollet.com/enterprise/$releasever/test/mirrorenabled=0gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

Then we update our existing packages on the system:

yum update

Now we install some software packages that are needed later on:

yum groupinstall 'Development Tools'

8 Quota(If you have chosen a different partitioning scheme than I did, you must adjust this chapter so that quota applies to thepartitions where you need it.)

To install quota, we run this command:

yum install quota

Edit /etc/fstab and add ,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 to the /partition (/dev/mapper/vg_server1-lv_root):

vi /etc/fstab

## /etc/fstab# Created by anaconda on Wed Jul 11 17:52:57 2012## Accessible filesystems, by reference, are maintained under '/dev/disk'# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#


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/dev/mapper/vg_server1-lv_root / ext4 defaults,usrjquota=aquUUID=806910a1-dbdf-4746-bd94-cbe73ce81493 /boot ext4 defaults /dev/mapper/vg_server1-lv_swap swap swap defaults 0 0tmpfs /dev/shm tmpfs defaults 0 0devpts /dev/pts devpts gid=5,mode=620 0 0sysfs /sys sysfs defaults 0 0proc /proc proc defaults 0 0

Then run

mount -o remount /

quotacheck -avugmquotaon -avug

to enable quota.

9 Synchronize The System Clock

It is a good idea to synchronize the system clock with an NTP (network time protocol) server over theInternet. Simply run

yum install ntp

and your system time will always be in sync.

10 Install MySQLInstall MySQL as follows:

yum install mysql mysql-server

Then create the system startup links for MySQL and start it:

chkconfig --levels 235 mysqld on/etc/init.d/mysqld start

Set passwords for the MySQL root account:

mysql_secure_installation

[root@server1 tmp]# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we'll need the current


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password for the root user. If you've just installed MySQL, andyou haven't set the root password yet, the password will be blank,so you should just press enter here.

Enter current password for root (enter for none):OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQLroot user without the proper authorisation.

Set root password? [Y/n]

11 Install Dovecot

Dovecot can be installed as follows:

yum install dovecot dovecot-mysql

Now create the system startup links and start Dovecot:

chkconfig --levels 235 dovecot on/etc/init.d/dovecot start

12 Install Postfix

Postfix can be installed as follows:

yum install postfix

Then turn off Sendmail and start Postfix:

chkconfig --levels 235 sendmail offchkconfig --levels 235 postfix on/etc/init.d/sendmail stop/etc/init.d/postfix restart

13 Install Getmail

Getmail can be installed as follows:

yum install getmail

14 Install Amavisd-new, SpamAssassin, And ClamAV

To install amavisd-new, spamassassin and clamav, run the following command:

yum install amavisd-new spamassassin clamav clamd unzip bzip2 unrar perl-DBD-mysql

Then we start freshclam, amavisd, and clamd.amavisd:

sa-updatechkconfig --levels 235 amavisd onchkconfig --del clamdchkconfig --levels 235 clamd.amavisd on/usr/bin/freshclam/etc/init.d/amavisd start/etc/init.d/clamd.amavisd start


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15 Install Nginx, PHP5 (PHP-FPM), And FcgiwrapNginx is available as a package for CentOS 6.4 (from EPEL) which we can install as follows:

yum install nginx

Add the following section to the http {} section in /etc/nginx/nginx.conf (before any include lines)which determines if the visitor uses http or https and sets the $https variable accordingly - this isneeded because the nginx version coming with CentOS is 1.0.15, and the $https variable wasintroduced in nginx in version 1.1.11, and ISPConfig makes use of this variable:

vi /etc/nginx/nginx.conf

[...]http {[...] ## Detect when HTTPS is used map $scheme $https { default off; https on; }[...]}[...]

If Apache2 is already installed on the system, stop it now...

/etc/init.d/httpd stop

... and remove Apache's system startup links:

chkconfig --del httpd

Then we create the system startup links for nginx and start it:

chkconfig --levels 235 nginx on/etc/init.d/nginx start

(If both Apache2 and nginx are installed, the ISPConfig 3 installer will ask you which one you want touse - answer nginx in this case. If only one of these both is installed, ISPConfig will do the necessaryconfiguration automatically.)

We can make PHP5 work in nginx through PHP-FPM (PHP-FPM (FastCGI Process Manager) is analternative PHP FastCGI implementation with some additional features useful for sites of any size,especially busier sites). We can install php-fpm together with php-cli and some PHP5 modules likephp-mysql which you need if you want to use MySQL from your PHP scripts as follows:

yum install php-fpm php-cli php-mysql php-gd php-imap php-ldap php-odbc php-pearphp-xml php-xmlrpc php-pecl-apc php-magickwand php-magpierss php-mbstring php-mcryptphp-mssql php-shout php-snmp php-soap php-tidy

Next we open /etc/php.ini...


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vi /etc/php.ini

... and change the error reporting (so that notices aren't shown any longer):

[...];error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICTerror_reporting = E_ALL & ~E_NOTICE[...]

Also set cgi.fix_pathinfo=0:

vi /etc/php.ini

[...]; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI. PHP's; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok; what PATH_INFO is. For more information on PATH_INFO, see the cgi specs. Setting; this to 1 will cause PHP CGI to fix its paths to conform to the spec. A setting; of zero causes PHP to behave as before. Default is 1. You should fix your scripts; to use SCRIPT_FILENAME rather than PATH_TRANSLATED.; http://www.php.net/manual/en/ini.core.php#ini.cgi.fix-pathinfocgi.fix_pathinfo=0[...]

(Please read http://wiki.nginx.org/Pitfalls to find out why you should do this.)

In addition to that, in order to avoid errors like

[08-Aug-2011 18:07:08] PHP Warning: phpinfo(): It is not safe to rely on the system'stimezone settings. You are *required* to use the date.timezone setting or thedate_default_timezone_set() function. In case you used any of those methods and you arestill getting this warning, you most likely misspelled the timezone identifier. Weselected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /usr/share/nginx/html/info.php online 2

... in /var/log/php-fpm/www-error.log when you call a PHP script in your browser, you should setdate.timezone in /etc/php.ini:

[...][Date]; Defines the default timezone used by the date functions; http://www.php.net/manual/en/datetime.configuration.php#ini.date.timezonedate.timezone = "Europe/Berlin"[...]

You can find out the correct timezone for your system by running:

cat /etc/sysconfig/clock

[root@server1 tmp]# cat /etc/sysconfig/clockZONE="Europe/Berlin"[root@server1 tmp]#

Next create the system startup links for php-fpm and start it:

chkconfig --levels 235 php-fpm on/etc/init.d/php-fpm start


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PHP-FPM is a daemon process (with the init script /etc/init.d/php-fpm) that runs a FastCGI serveron port 9000.

To get CGI support in nginx, we install Fcgiwrap.

Fcgiwrap is a CGI wrapper that should work also for complex CGI scripts and can be used for sharedhosting environments because it allows each vhost to use its own cgi-bin directory.

As there's no fcgiwrap package for CentOS 6.4, we must build it ourselves. First we install someprerequisites:

yum install fcgi-devel

Now we can build fcgiwrap as follows:

cd /usr/local/src/git clone git://github.com/gnosek/fcgiwrap.gitcd fcgiwrapautoreconf -i./configuremakemake install

This installs fcgiwrap to /usr/local/sbin/fcgiwrap.

Next we install the spawn-fcgi package which allows us to run fcgiwrap as a daemon:

yum install spawn-fcgi

Open /etc/sysconfig/spawn-fcgi...

vi /etc/sysconfig/spawn-fcgi

... and modify the file as follows:

# You must set some working options before the "spawn-fcgi" service will work.# If SOCKET points to a file, then this file is cleaned up by the init script.## See spawn-fcgi(1) for all possible options.## Example :#SOCKET=/var/run/php-fcgi.sock#OPTIONS="-u apache -g apache -s $SOCKET -S -M 0600 -C 32 -F 1 -P /var/run/spawn-fcgi

FCGI_SOCKET=/var/run/fcgiwrap.socketFCGI_PROGRAM=/usr/local/sbin/fcgiwrapFCGI_USER=apacheFCGI_GROUP=apacheFCGI_EXTRA_OPTIONS="-M 0770"OPTIONS="-u $FCGI_USER -g $FCGI_GROUP -s $FCGI_SOCKET -S $FCGI_EXTRA_OPTIONS -F 1 -P

Now add the user nginx to the group apache:

usermod -a -G apache nginx

Create the system startup links for spawn-fcgi...


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chkconfig --levels 235 spawn-fcgi on

... and start it as follows:

/etc/init.d/spawn-fcgi start

You should now find the fcgiwrap socket in /var/run/fcgiwrap.socket, owned by the user and groupapache (some scripts, e.g. Mailman, expect to be run by the user/group apache, that's why we don't runspawn-fcgi as user/group nginx, but instead add nginx to the apache group).

15.1 Additional PHP Versions

Starting with the ISPConfig 3.0.5, it is possible to have multiple PHP versions on one server(selectable through ISPConfig) which can be run through FastCGI and PHP-FPM. The procedure ofbuilding additional PHP versions on CentOS is described in this tutorial: How To Use Multiple PHPVersions (PHP-FPM & FastCGI) With ISPConfig 3 (CentOS 6.3)



16 Install phpMyAdmin

Next we install phpMyAdmin:

yum install phpmyadmin

Next we change the authentication in phpMyAdmin from cookie to http:

vi /usr/share/phpmyadmin/config.inc.php

[...]/* Authentication type */$cfg['Servers'][$i]['auth_type'] = 'http';[...]

You can now find phpMyAdmin in the /usr/share/phpmyadmin/ directory.

After you have installed ISPConfig 3, you can access phpMyAdmin as follows:

The ISPConfig apps vhost on port 8081 for nginx comes with a phpMyAdmin configuration, so youcan use http://server1.example.com:8081/phpmyadmin or http://server1.example.com:8081/phpMyAdmin to access phpMyAdmin.

If you want to use a /phpmyadmin or /phpMyAdmin alias that you can use from your web sites, this is a


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bit more complicated than for Apache because nginx does not have global aliases (i.e., aliases that canbe defined for all vhosts). Therefore you have to define these aliases for each vhost from which youwant to access phpMyAdmin.

To do this, paste the following into the nginx Directives field on the Options tab of the web site inISPConfig:

location /phpmyadmin { root /usr/share/; index index.php index.html index.htm; location ~ ^/phpmyadmin/(.+\.php)$ { try_files $uri =404; root /usr/share/; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $request_filename; include /etc/nginx/fastcgi_params; fastcgi_param PATH_INFO $fastcgi_script_name; fastcgi_buffer_size 128k; fastcgi_buffers 256 4k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; } location ~* ^/phpmyadmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|tx root /usr/share/; } } location /phpMyAdmin { rewrite ^/* /phpmyadmin last; }

If you use https instead of http for your vhost, you should add the line fastcgi_param HTTPS on; toyour phpMyAdmin configuration like this:

location /phpmyadmin { root /usr/share/; index index.php index.html index.htm; location ~ ^/phpmyadmin/(.+\.php)$ { try_files $uri =404; root /usr/share/; fastcgi_pass 127.0.0.1:9000; fastcgi_param HTTPS on; #

HTTPS $https; so that you can use phpMyAdmin for both http and https requests:

location /phpmyadmin { root /usr/share/; index index.php index.html index.htm; location ~ ^/phpmyadmin/(.+\.php)$ { try_files $uri =404; root /usr/share/; fastcgi_pass 127.0.0.1:9000; fastcgi_param HTTPS $https; #

[root@server1 tmp]#

Open /etc/aliases afterwards...

vi /etc/aliases

... and add the following lines:

[...]mailman: "|/usr/lib/mailman/mail/mailman post mailman"mailman-admin: "|/usr/lib/mailman/mail/mailman admin mailman"mailman-bounces: "|/usr/lib/mailman/mail/mailman bounces mailman"mailman-confirm: "|/usr/lib/mailman/mail/mailman confirm mailman"mailman-join: "|/usr/lib/mailman/mail/mailman join mailman"mailman-leave: "|/usr/lib/mailman/mail/mailman leave mailman"mailman-owner: "|/usr/lib/mailman/mail/mailman owner mailman"mailman-request: "|/usr/lib/mailman/mail/mailman request mailman"mailman-subscribe: "|/usr/lib/mailman/mail/mailman subscribe mailman"mailman-unsubscribe: "|/usr/lib/mailman/mail/mailman unsubscribe mailman"

Run

newaliases

afterwards and restart Postfix:

/etc/init.d/postfix restart

Create the system startup links for Mailman and start it:

chkconfig --levels 235 mailman on/etc/init.d/mailman start

Now we need to create this symlink to make Mailman work with ISPConfig:

cd /usr/lib/mailman/cgi-bin/ln -s ./ mailman

If you want to use Mailman from your web sites created through ISPConfig, this is a bit morecomplicated than for Apache because nginx does not have global aliases (i.e., aliases that can bedefined for all vhosts). Therefore you have to define these aliases for each vhost from which you wantto access Mailman.


location /cgi-bin/mailman { alias /usr/lib/mailman/cgi-bin; fastcgi_split_path_info (^/cgi-bin/mailman/[^/]*)(.*)$; include /etc/nginx/fastcgi_params; fastcgi_param SCRIPT_FILENAME /usr/lib/mailman$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_param PATH_TRANSLATED /usr/lib/mailman$fastcgi_path_info; fastcgi_intercept_errors on; fastcgi_pass unix:/var/run/fcgiwrap.socket;


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}

location /images/mailman { alias /usr/lib/mailman/icons; }

location /pipermail { alias /var/lib/mailman/archives/public; autoindex on; }

This defines the alias /cgi-bin/mailman/ for your vhost, which means you can access the Mailmanadmin interface for a list at http:///cgi-bin/mailman/admin/, and the web pagefor users of a mailing list can be found at http:///cgi-bin/mailman/listinfo/.

Under http:///pipermail you can find the mailing list archives.

18 Install PureFTPd

PureFTPd can be installed with the following command:

yum install pure-ftpd

Then create the system startup links and start PureFTPd:

chkconfig --levels 235 pure-ftpd on/etc/init.d/pure-ftpd start

Now we configure PureFTPd to allow FTP and TLS sessions. FTP is a very insecure protocol becauseall passwords and all data are transferred in clear text. By using TLS, the whole communication can beencrypted, thus making FTP much more secure.

OpenSSL is needed by TLS; to install OpenSSL, we simply run:

yum install openssl

Open /etc/pure-ftpd/pure-ftpd.conf...

vi /etc/pure-ftpd/pure-ftpd.conf

If you want to allow FTP and TLS sessions, set TLS to 1:

[...]# This option can accept three values :# 0 : disable SSL/TLS encryption layer (default).# 1 : accept both traditional and encrypted sessions.# 2 : refuse connections that don't use SSL/TLS security mechanisms,# including anonymous sessions.# Do _not_ uncomment this blindly. Be sure that :# 1) Your server has been compiled with SSL/TLS support (--with-tls),# 2) A valid certificate is in place,# 3) Only compatible clients will log in.

TLS 1


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[...]

In order to use TLS, we must create an SSL certificate. I create it in /etc/ssl/private/, therefore Icreate that directory first:

mkdir -p /etc/ssl/private/

Afterwards, we can generate the SSL certificate as follows:

openssl req -x509 -nodes -days 7300 -newkey rsa:2048 -keyout /etc/ssl/private/pure-ftpd.pem -out /etc/ssl/private/pure-ftpd.pem

Country Name (2 letter code) [XX]:

# you must set up the chroot environment# (install the bind-chroot package) before# doing this.# NOTE:# Those directories are automatically mounted to chroot if they are# empty in the ROOTDIR directory. It will simplify maintenance of your# chroot environment.# - /var/named# - /etc/pki/dnssec-keys# - /etc/named# - /usr/lib64/bind or /usr/lib/bind (architecture dependent)## Those files are mounted as well if target file doesn't exist in# chroot.# - /etc/named.conf# - /etc/rndc.conf# - /etc/rndc.key# - /etc/named.rfc1912.zones# - /etc/named.dnssec.keys# - /etc/named.iscdlv.key## Don't forget to add "$AddUnixListenSocket /var/named/chroot/dev/log"# line to your /etc/rsyslog.conf file. Otherwise your logging becomes# broken when rsyslogd daemon is restarted (due update, for example).## OPTIONS="whatever" -- These additional options will be passed to named# at startup. Don't add -t here, use ROOTDIR instead.## KEYTAB_FILE="/dir/file" -- Specify named service keytab file (for GSS-TSIG)## DISABLE_ZONE_CHECKING -- By default, initscript calls named-checkzone# utility for every zone to ensure all zones are# valid before named starts. If you set this option# to 'yes' then initscript doesn't perform those# checks.

Make a backup of the existing /etc/named.conf file and create a new one as follows:

cp /etc/named.conf /etc/named.conf_bakcat /dev/null > /etc/named.confvi /etc/named.conf

//// named.conf//// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS// server as a caching only nameserver (as a localhost DNS resolver only).//// See /usr/share/doc/bind*/sample/ for example named configuration files.//options { listen-on port 53 { any; }; listen-on-v6 port 53 { any; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data/named_mem_stats.txt"; allow-query { any; }; recursion yes;};logging { channel default_debug { file "data/named.run"; severity dynamic; };};


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zone "." IN { type hint; file "named.ca";};include "/etc/named.conf.local";

Create the file /etc/named.conf.local that is included at the end of /etc/named.conf(/etc/named.conf.local will later on get populated by ISPConfig if you create DNS zones inISPConfig):

touch /etc/named.conf.local

Then we create the startup links and start BIND:

chkconfig --levels 235 named on/etc/init.d/named start

20 Install Webalizer And AWStats

Webalizer and AWStats can be installed as follows:

yum install webalizer awstats perl-DateTime-Format-HTTP perl-DateTime-Format-Builder



21 Install Jailkit

Jailkit is needed only if you want to chroot SSH users. It can be installed as follows (important: Jailkitmust be installed before ISPConfig - it cannot be installed afterwards!):

cd /tmpwget http://olivier.sessink.nl/jailkit/jailkit-2.15.tar.gztar xvfz jailkit-2.15.tar.gzcd jailkit-2.15./configuremakemake installcd ..rm -rf jailkit-2.15*

22 Install fail2ban

This is optional but recommended, because the ISPConfig monitor tries to show the log:


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yum install fail2ban

We must configure fail2ban to log to the log file /var/log/fail2ban.log because this is the log filethat is monitored by the ISPConfig Monitor module. Open /etc/fail2ban/fail2ban.conf...

vi /etc/fail2ban/fail2ban.conf

... and comment out the logtarget = SYSLOG line and add logtarget = /var/log/fail2ban.log:

[...]# Option: logtarget# Notes.: Set the log target. This could be a file, SYSLOG, STDERR or STDOUT.# Only one log target can be specified.# Values: STDOUT STDERR SYSLOG file Default: /var/log/fail2ban.log##logtarget = SYSLOGlogtarget = /var/log/fail2ban.log[...]

Then create the system startup links for fail2ban and start it:

chkconfig --levels 235 fail2ban on/etc/init.d/fail2ban start

23 Install rkhunter

rkhunter can be installed as follows:

yum install rkhunter

24 Install SquirrelMail

To install the SquirrelMail webmail client, run...

yum install squirrelmail

Then configure SquirrelMail:

/usr/share/squirrelmail/config/conf.pl

We must tell SquirrelMail that we are using Dovecot:

SquirrelMail Configuration : Read: config.php (1.4.0)---------------------------------------------------------

Main Menu --1. Organization Preferences2. Server Settings3. Folder Defaults4. General Options5. Themes


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6. Address Books7. Message of the Day (MOTD)8. Plugins9. Database10. Languages

D. Set pre-defined settings for specific IMAP servers

C Turn color offS Save dataQ Quit

Command >> > > courier

imap_server_type = courier default_folder_prefix = INBOX. trash_folder = Trash sent_folder = Sent draft_folder = Drafts show_prefix_option = false


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default_sub_of_inbox = falseshow_contain_subfolders_option = false optional_delimiter = . delete_folder = true

Press enter to continue... > >

*

* @copyright 2002-2006 The SquirrelMail Project Team * @license http://opensource.org/licenses/gpl-license.php GNU Public License * @version $Id: config_local.php,v 1.2 2006/07/11 03:33:47 wtogami Exp $ * @package squirrelmail * @subpackage config */

//$default_folder_prefix = '';?>

You can now find SquirrelMail in the /usr/share/squirrelmail/ directory.

After you have installed ISPConfig 3, you can access SquirrelMail as follows:

The ISPConfig apps vhost on port 8081 for nginx comes with a SquirrelMail configuration, so you canuse http://server1.example.com:8081/squirrelmail or http://server1.example.com:8081/webmailto access SquirrelMail.

If you want to use a /webmail or /squirrelmail alias that you can use from your web sites, this is a bitmore complicated than for Apache because nginx does not have global aliases (i.e., aliases that can bedefined for all vhosts). Therefore you have to define these aliases for each vhost from which you wantto access SquirrelMail.


location /squirrelmail { root /usr/share/; index index.php index.html index.htm; location ~ ^/squirrelmail/(.+\.php)$ { try_files $uri =404; root /usr/share/; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $request_filename; include /etc/nginx/fastcgi_params; fastcgi_param PATH_INFO $fastcgi_script_name; fastcgi_buffer_size 128k; fastcgi_buffers 256 4k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; } location ~* ^/squirrelmail/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml| root /usr/share/; } } location /webmail { rewrite ^/* /squirrelmail last; }

If you use https instead of http for your vhost, you should add the line fastcgi_param HTTPS on; toyour SquirrelMail configuration like this:

location /squirrelmail { root /usr/share/; index index.php index.html index.htm; location ~ ^/squirrelmail/(.+\.php)$ { try_files $uri =404; root /usr/share/;


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fastcgi_pass 127.0.0.1:9000; fastcgi_param HTTPS on; #

possible that some of your installed packages have installed Apache as a dependency without youknowing). If Apache2 is already installed on the system, stop it now...

/etc/init.d/httpd stop

... and remove Apache's system startup links:

chkconfig --del httpd

Make sure that nginx is running:

/etc/init.d/nginx restart

(If you have both Apache and nginx installed, the installer asks you which one you want to use:Apache and nginx detected. Select server to use for ISPConfig: (apache,nginx) [apache]:

Type nginx. If only Apache or nginx are installed, this is automatically detected by the installer, andno question is asked.)

Download the current ISPConfig 3 version and install it. The ISPConfig installer will configure allservices like Postfix, Dovecot, etc. for you. A manual setup as required for ISPConfig 2 is notnecessary anymore.

You now also have the possibility to let the installer create an SSL vhost for the ISPConfig controlpanel, so that ISPConfig can be accessed using https:// instead of http://. To achieve this, just pressENTER when you see this question: Do you want a secure (SSL) connection to the ISPConfig webinterface (y,n) [y]:.

To install ISPConfig 3 from the latest released version, do this:

cd /tmpwget http://www.ispconfig.org/downloads/ISPConfig-3-stable.tar.gztar xfz ISPConfig-3-stable.tar.gzcd ispconfig3_install/install/

The next step is to run

php -q install.php

This will start the ISPConfig 3 installer:

[root@server1 install]# php -q install.php

--------------------------------------------------------------------------------

_____ ___________ _____ __ _ ____

|_ _/ ___| ___ \ / __ \ / _(_) /__ \ | | \ `--.| |_/ / | / \/ ___ _ __ | |_ _ __ _ _/ / | | `--. \ __/ | | / _ \| '_ \| _| |/ _` | |_ | _| |_/\__/ / | | \__/\ (_) | | | | | | | (_| | ___\ \ \___/\____/\_| \____/\___/|_| |_|_| |_|\__, | \____/ __/ | |___/--------------------------------------------------------------------------------

>> Initial configuration


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Operating System: Redhat or compatible, unknown version.

Following will be a few questions for primary configuration so be careful. Default values are in [brackets] and can be accepted with . Tap in "quit" (without the quotes) to stop the installer.

Select language (en,de) [en]:

e is 65537 (0x10001)You are about to be asked to enter information that will be incorporatedinto your certificate request.What you are about to enter is what is called a Distinguished Name or a DN.There are quite a few fields but you can leave some blankFor some fields there will be a default value,If you enter '.', the field will be left blank.-----

Country Name (2 letter code) [XX]:

/etc/init.d/mailman restart

Afterwards you can access ISPConfig 3 under http(s)://server1.example.com:8080/ orhttp(s)://192.168.0.100:8080/ (http or https depends on what you chose during installation). Login with the username admin and the password admin (you should change the default password afteryour first login):

The system is now ready to be used.

If you want to use IPv6 addresses with your nginx vhosts, please do the following before you createIPv6 vhosts in ISPConfig:


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Open /etc/sysctl.conf...

vi /etc/sysctl.conf

... and add the line net.ipv6.bindv6only = 1:

[...]net.ipv6.bindv6only = 1

Run...

sysctl -p

... afterwards for the change to take effect.

25.1 ISPConfig 3 Manual

In order to learn how to use ISPConfig 3, I strongly recommend to download the ISPConfig 3 Manual.

On more than 300 pages, it covers the concept behind ISPConfig (admin, resellers, clients), explainshow to install and update ISPConfig 3, includes a reference for all forms and form fields in ISPConfigtogether with examples of valid inputs, and provides tutorials for the most common tasks in ISPConfig3. It also lines out how to make your server more secure and comes with a troubleshooting section atthe end.

25.2 ISPConfig Monitor App For Android

With the ISPConfig Monitor App, you can check your server status and find out if all services arerunning as expected. You can check TCP and UDP ports and ping your servers. In addition to that youcan use this app to request details from servers that have ISPConfig installed (please note that theminimum installed ISPConfig 3 version with support for the ISPConfig Monitor App is 3.0.3.3!);these details include everything you know from the Monitor module in the ISPConfig Control Panel(e.g. services, mail and system logs, mail queue, CPU and memory info, disk usage, quota, OS details,RKHunter log, etc.), and of course, as ISPConfig is multiserver-capable, you can check all servers thatare controlled from your ISPConfig master server.

For download and usage instructions, please visit http://www.ispconfig.org/ispconfig-3/ispconfig-monitor-app-for-android/.

26 Links

CentOS: http://www.centos.org/ISPConfig: http://www.ispconfig.org/


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About The Author

Falko Timme is the owner of Timme Hosting (ultra-fast nginx webhosting). He is the lead maintainer of HowtoForge (since 2005) and one of the coredevelopers of ISPConfig (since 2000). He has also contributed to the O'Reilly book "Linux

System Administration".



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the perfect server - centos 6.4 x86_64 (nginx, dovecot, ispconfig 3)

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