Managing Linux Servers with System Center 2012 R2
System Center
2012 R2
Hands-on lab
In this lab, you will use System Center 2012 R2 Operations
Manager and System Center 2012 R2 Configuration Manager
to manage a SUSE Linux® Enterprise Server 11 server. You will
begin by using Operations Manager to review the overall
health of the server, and then use Configuration Manager to
deploy a new software package to the SLES server.
Produced by HynesITe, Inc
Version 1.1
11/12/2013
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Introduction
Estimated time to complete this lab
60 minutes
Objectives
After completing this lab, you will be able to:
Manage a Linux server with System Center 2012 R2 Operations Manager.
Deploy software to a Linux server with System Center 2012 R2 Configuration Manager.
Prerequisites
Before working on this lab, you must have:
A basic understanding of Operations Manager.
A basic understanding of Configuration Manager.
The ability to work in a command line environment.
Overview of the lab
In this lab, you will use System Center 2012 R2 Operations Manager and System Center 2012 R2
Configuration Manager to manage a SUSE Linux Enterprise Server 11 server. You will begin by using
Operations Manager to review the overall health of the server, and then use Configuration Manager to
deploy a new software package to the SLES server.
Virtual machine technology
This lab is completed using virtual machines that run on Windows Server 2012 Hyper-V technology. To
log on to the virtual machines, press CTRL+ALT+END and enter your logon credentials.
Computers in this lab
This lab uses computers as described in the following table. Before you begin the lab, you must ensure
that the virtual machines are started and then log on to the computers.
Computer Role Configuration
DC Domain controller, iSCSI SAN Contains a virtual iSCSI SAN to provide storage for
cluster nodes on a STORAGE network
OM Server with System Center
2012 R2 Operations Manager
installed
Server used to manage Linux server using System
Center 2012 R2 Operations Manager
CM Server with System Center
2012 R2 Configuration
Manager installed
Server used to configure Linux server using System
Center 2012 R2 Configuration Manager
SLESNew Unconfigured Linux server None
SLES Configured Linux server System Center 2012 R2 Operations Manager and
System Center 2012 R2 Configuration Manager
agents installed
Admin Client workstation with RSAT Windows 8.1 with RSAT
All user accounts in this lab use the password Passw0rd!
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Note regarding pre-release software
Portions of this lab may include software that is not yet released, and as such may still contain active or
known issues. While every effort has been made to ensure this lab functions as written, unknown or
unanticipated results may be encountered as a result of using pre-release software.
Note regarding user account control
Some steps in this lab may be subject to user account control. User account control is a technology which
provides additional security to computers by requesting that users confirm actions that require
administrative rights. Tasks that generate a user account control confirmation are denoted using a shield
icon. If you encounter a shield icon, confirm your action by selecting the appropriate button in the dialog
box that is presented.
Note on activation
The virtual machines for these labs may have been built by using software that has not been activated.
This is by design in the lab to prevent the redistribution of activated software. The unactivated state of
software has been taken into account in the design of the lab. Consequently, the lab is in no way affected
by this state. For operating systems other than Windows 8.1, please click Cancel or Close if prompted by
an activation dialog box. If you are prompted by an Activate screen for Windows 8.1, press the Windows
key to display the Start screen.
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Exercise 1: Monitoring Linux using System Center 2012
R2Operations Manager
In this exercise, you will monitor a Linux server using System Center 2012 R2 Operations Manager. There
are two Linux servers in this exercise. SLESNew has just been deployed and is not configured. SLES has
already been configured for monitoring. You will first review the configuration required to monitor Linux,
and review data capture previously on SLES. You will then use the discover wizard to add SLESNew to the
Operations Manager console.
Review management packs
In this task, you will review the Linux management packs. These management packs are included in the
Operations Manager installation media.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. On the taskbar, click Operations Manager.
2. In Operations Manager, click Administration.
3. Navigate to Administration/Management Packs.
4. In Management Packs, scroll down and find SUSE Linux Enterprise Operating System Library
and SUSE Linux Enterprise Server 11 Operating System.
These two management packs are used for monitoring SUSE Linux 11.
5. Scroll up and find Linux Operating System Library.
This management pack is part of the base requirements for monitoring Linux.
Review Accounts
In this task, you will review pre-created Unix/Linux Run As accounts. These accounts are used to establish
connections to Linux for monitoring and management activities.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Administration, navigate to Run As Configuration/UNIX/Linux Accounts.
2. Double-click Root Account for Maintenance.
3. Click Account Credentials.
This account uses a username and password combination, instead of an SSH key, and is a privileged
account (super user).
4. Close the UNIX/Linux Run As Account Properties Wizard dialog box.
5. Click Yes.
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Review Profiles
In this task, you will review the profiles used to monitor Linux.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Administration, navigate to Run As Configuration/Profiles.
2. Scroll down, and then double-click UNIX/Linux Privileged Account.
There are three Profiles that must be configured.
3. In Run As Profile Wizard, click Run As Accounts.
The profile is configured to use the Root Account for Management account.
4. Click Cancel, and then click Yes.
Explore Monitoring Data for Linux
In this task, you will explore information that Operations Manager has collected on the SLES server in this
environment.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Operations Manager, click Monitoring.
2. Click UNIX/Linux Computers (the object, not the folder).
3. Review the information presented in the details pane.
4. In the Action pane, under UNIX/Linux Computer Tasks, click Top 10 CPU Processes.
5. Click Run.
6. In the Task Status dialog box, review the output of the command, and then click Close.
7. In Navigation, click Diagram View.
The diagram shows a logical view of all the discovered objects on the SLES server.
8. In Navigation, click Performance View.
9. In the lower pane, check several performance counters to see performance data.
Your performance data may vary depending on the timing of this lab.
10. Close the Performance window and the Diagram View window.
11. Under monitoring, navigate to UNIX/Linux Computers/Linux/Logical Disk State.
This view shows the health of logical volumes across all Linux servers.
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Implement monitoring on a new Linux server
In this task, you will configure Operations Manager to monitor a newly installed Linux server named
SLESNew.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Operations Manager, click Administration.
2. Above Administration, click Discovery Wizard.
3. In Discovery Type, click UNIX/Linux computers, and then click Next.
4. In Discovery criteria, click Add.
5. Double-click the empty line in Discovery scope.
6. In Host name, type slesnew, and then click Save.
7. In Credentials, click Set credentials.
8. Click User name and password.
9. In user name, type root.
10. In Password and Confirm password, type Passw0rd!
11. Click OK, and then click Save.
12. In Select target resource pool, select All Management Servers Resource Pool, and then click
Discover.
Discovery may take a few minutes to complete.
13. Check SLESNew, and then click Manage.
14. When the deployment is complete, click Done.
It may take up to 30 minutes (but most likely between 5 and 10) before SLESNew is fully recognized and
available in the Operations Manager console. You may check the UNIX/Linux Computers node under
Monitoring to see the newly added server. Initially it will appear grey but as the assorted monitoring and
polling cycles complete, and information is gathered, it will report more detailed health status.
Explore built-in native Linux monitoring
In this task, you will explore the native Linux monitoring available with the Linux/Unix management packs.
In this task you will terminate the CRON service on the SLES server, and then use Operations Manager to
resolve the issue.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Operations Manager, click Monitoring, and then click UNIX/Linux Computers (the object, not
the folder).
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2. Under Tasks, click Health Explorer.
3. On the menu bar, click Filter Monitors.
This will remove all filters.
4. Navigate to Availability/Operating System/Availability, and then note the value of Process
Cron Service Health.
5. Close Health Explorer.
6. Switch to SLES, and then ensure you are logged on as Root root using the password
PasswordPassw0rd!.
6. Both the username and password are case sensitive.
7. Click Computer, and then click GNOME Terminal.
8. Type the following commands, pressing ENTER after each one
All commands are case sensitive.
The output of the first command will produce a number, such as 3456. Replace the value <PID> in the
second command with this number.
↪ ps –e | grep cron
↪ kill -9 <PID>
9. Switch to Admin, and then in Operations Manager Console, click UNIX/Linux Computers. Wait
for the state of sles.contoso.com to change to Critical.
Wait approximately 15 seconds. In this lab environment, the polling interval has been reduced to 15
seconds to speed up results. If after a minute or so, the state of the parent object does not change to
critical, proceed with the subsequent steps. It may take a while longer for the status of the parent
eventobject to change to critical.
10. Under Tasks, click Health Explorer.
11. On the menu bar, click Filter Monitors.
This will remove all filters and show healthy as well as unhealthy monitors. Note that this step is
unnecessary if the state of sles.contoso.com is critical.
11.12. Navigate to Availability/Operating System/Availability, and note the value of Process
Cron Service Health.
The Process Core Service Health should have a critical status.
12.13. In the contents pane, click State Change Events.
Here you can review a history of the monitor, as well as any recent status change events. The history
shows a few status changes.
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13.14. In Details, scroll to the very bottom of the details window.
You can review the output of the Cron status diagnostic. This monitor also includes an option to
remediate the issue.
14.15. Click Cron restart, and then click Yes.
15.16. Scroll to the bottom of the Details pane, and note the status of the Cron restart.
You will see in the recovery output area, that the daemon was restarted.
16.17. Close Health Explorer.
17.18. Wait for the state of sles.contoso.com to change to Healthy.
Wait approximately 15 seconds.
(Optional) Create a custom shell script-based monitor
In this task, you will use a simple shell script to create a custom monitor which validates the status of an
application by reviewing its log files. This simple example shows how you can leverage simple, or complex,
shell scripting to monitor any aspect of a UNIX/Linux computer.
Begin this task logged on to Admin as Contoso/Administrator using the password Passw0rd!
1. In Operations Manager Console, click Authoring.
2. Either scroll to, or use search to locate SUSE Linux Enterprise Server 11 Operating System.
3. Expand SUSE Linux Enterprise Server 11 Operating System, expand Entity Health, and then
click Availability.
4. In Tasks, click Create a Monitor, and then click Unit Monitor.
5. In Monitor type, navigate to Scripting/Generic/UNIX/Linux Shell Command Two State
Monitor.
6. In Management pack, click New.
7. In Name, type AppState Monitors, and then click Next.
8. Click Create.
9. In the Create a unit monitor wizard, click Next.
10. On the General page, in Name, type AppState, and then click Next.
11. In Schedule, change Minutes to Seconds, and then click Next.
12. In Shell Command Details, type the following command.
The command is case sensitive.
↪ Cat cat /tmp/appstate | grep ERROR | wc –l
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To avoid ambiguity, the last character in the above command is the lower-case letter L, not the number
1.
13. Click Next.
14. In Error Expression, on the first line, change Contains to Equals, and then in Value, type 1. The
correct configuration is shown below.
15. Click Next.
16. In Healthy Expression, on the first line, change Contains to Equals, and then in value, type 0. The
correct configuration is shown below.
17. Click Next two times, and then click Create.
Validate the custom monitor
In this task, you will validate that your custom monitor is working as expected.
Begin this task logged on to SLES as Root root using the password Passw0rd!
1. Click Computer, and then click GNOME Terminal.
2. In GNOME Terminal, type the following command, and then press ENTER.
↪ Cat cat > /tmp/appstate
The command is case sensitive.
3. Type OK on the blank line, and then press ENTER.
4. Press CTRL+D to save the file.
5. Switch to Admin, and ensure you have the Operations Console open.
6. Click Monitoring, and then click UNIX/Linux Computers.
Depending on the speed at which you completed the previous tasks, your computer may have a status
of either Healthy or Critical. Either is fine at this stage.
7. Under Tasks, click Health Explorer.
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8. On the toolbar, click Filter Monitors to remove all filters.
9. Navigate to Availability/Operating System/Availability, and then note the AppState monitor.
10. Close Health Explorer.
CAUTION: Do not proceed until SLES.contoso.com shows healthy. If it does not show healthy, double
check the steps you completed in the previous exercise.
11. Switch to SLES.
12. In GNOME Terminal, type the following command, and then press ENTER.
↪ Cat cat > /tmp/appstate
13. Type ERROR on the blank line, and then press ENTER.
14. Press CTRL+D to save the file.
15. Switch to Admin.
Wait for the SLES computer to switch to CRITICAL. This indicates it has used the custom monitor shell
script to identify the ERROR in the appstate log file.
16. In GNOME Terminal, type the following command, and then press ENTER.
↪ Cat cat > /tmp/appstate
17. Type OK on the blank line, and then press ENTER.
18. Press CTRL+D to save the file.
19. Switch to Admin.
Wait for SLES.contoso.com to switch to Healthy.
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Exercise 2: Managing Linux with System Center 2012 R2
Configuration Manager
In this exercise, you will use System Center 2012 R2 Configuration Manager to deploy software to a new
Linux server. You will first deploy the Configuration Manager Agent software to SLESNew. Since the
software takes time to fully register with Configuration Manager, you will then proceed to deploy a new
Java package to SLES using software distribution.
Install the Configuration Manager Linux client
In this task, you will install the Configuration Manager client on SLESNew, and then approve it as a
Configuration Manager client.
Begin this task logged on to SLESNew as Root root with the password Passw0rd!
1. Click Computer, and then click More Applications.
2. Under System, click GNOME Terminal.
3. In Terminal, type the following commands, pressing ENTER after each one.
IMPORTANT: All commands are CASE SENSITIVE.
↪ cd Documents
↪ ./install –mp cm.contoso.com –sitecode CTO ccm-
Universalx86.1.0.0.4580.tar
4. Switch to the Admin VM, and then ensure you are logged on as Contoso\Administrator using
the password Passw0rd!
5. Open the Configuration Manager console.
6. In Assets and Compliance, click Devices.
7. In the content pane, click SLESNew.contoso.com.
8. On the ribbon, click Device, and then click Approve.
8. Depending on your display, you may not see Device on the ribbon. If this is the case, click Approve.
9. Click Yes.
Manually added devices must be approved by the Configuration Manager administrator before being
managed.
Management will now collect inventory information from the SLES computer. This process may take
anywhere from 10 minutes to 1 hour
10. Leave Terminal open for a future step.
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Review hardware inventory
In this task, you will review the hardware inventory collected on the SLES computer. You will switch away
from using SLESNew so you do not have to wait for this process to complete. The Configuration Manager
Agent has already been deployed on this computer, and time was taken to allow the various management
processes to run.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In the Configuration Manager console, click Device Collections.
2. In the contents pane, double-click SLES Servers.
3. Right-click SLES, click Start, and then click Resource Explorer.
4. In Resource Explorer, navigate to SLES/Hardware/Installed Applications.
Note the list of installed Linux packages.
5. Click Services.
Note the list of running services and pathnames.
Note that CCMExec is a running service.
Deploy a Java RPM package to SLES
In this task, you will create a Java Runtime Environment (JRE) package to install on SLES using
Configuration Manager.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In the Configuration Manager console, click Software Library.
2. Expand Application Management, and then click Packages.
3. Right-click Packages, and then click Create Package.
4. In the Create Package and Program wizard, in Name, type JRE Package.
5. Check This package contains source files, and then click Browse.
6. In Source folder, type \\Admin\Downloads.
The JRE package already exists in this location. It was downloaded previously.
7. Click OK.
8. Click Next.
9. In Program Type, click Next.
10. In Standard Program, in Name, type JRE Installer.
11. In Command line, click Browse.
12. Change Executable Files (*.exe) to All Files (*.*).
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13. Click the JRE package file, and then click Open.
This method ensures you are capturing the name of the package file exactly, including case, which must
match.
14. At the command prompt, insert the text rpm –ivh before the .rpm file name. Your command
should read as follows:
↪ rpm –ivh jre-7u40-linux-i586.rpm
This command is case-sensitive.
15. In Program can run, select Whether or not a user is logged on.
16. Click Next.
17. In Requirements, click Next.
18. In Summary, click Next, and then when the packages is created, click Close.
Distribute the JRP JRE package
In this task, you will copy the JRE package to your distribution point.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In Packages, click JRE Package, and then click Properties.
2. In Distribution Settings, click Automatically download content when packages are assigned to
distribution points, and then click OK.
3. In Packages, click JRE Package, and then on the ribbon, click Distribute Content.
4. In the Distribute Content Wizard, click Next.
5. On the Content Distribution page, click Add, and then click Distribution Point.
6. Check cm.contoso.com, and then click OK.
7. Click Next on all remaining pages, and then click Close.
8. In Packages, click JRE Package, and then press F5.
This will refresh the content status view to track content distribution process. Keep pressing F5 every few
seconds until the content status is green. This should take no more than 1 minute.
Verify JRE is not installed on SLES
In this task, you will use the GREP command to verify that JRE is not installed on SLES.
Begin this task logged on to SLES as Root root with the password Passw0rd!
1. Click Computer, and then click GNOME Terminal.
2. In Terminal, type the following command, and then press ENTER.
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This command is case sensitive.
↪ rpm –qa | grep jre
Note that there is no jre package listed.
3. Leave Terminal open for the next step.
Create new device collection for SUSE Servers
In this task, you will create a new collection that contains both the SLES and SLESNew servers..
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
1. In the Configuration Manager console, click the Assets and Compliance workspace.
2. Click Device Collections.
3. On the ribbon, click Create Device Collection.
4. On the Specify details for this collection page, in Name, type All SLES Servers.
5. For Limiting collection, click Browse.
6. In the Select Collection dialog box, click All Systems, and the click OK.
7. On the Specify the details for this collection page, click Next.
8. On the Define membership rules for this collection page, click Add Rule, and then click Direct
Rule.
To simplify the creation of this collection, we are using a Direct Rule. In a production environment, you
would likely want create a query rule that would dynamically update the membership of the collection
as Linux Servers are added and removed.
9. On the Welcome page, click Next.
10. On the Locate resources to add to the collection page, click the Attribute name drop down, and
select Operating System Name and Version.
11. In Value, type SLES%.
12. Click Next.
13. On the Select resources to add as direct members to this collection, check sles and slesnew, and
click Next.
Do not select the entries for sles (Obsolete), if they are present.
14. On the Confirm the settings page, click Next.
15. Click Close.
16. On the Define the membership for this collection page, click Next.
17. Click Next, and then click Close.
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Deploy the JRE package to SLESthe All SLES Servers collection
In this task, you will deploy the JRE package to the All SLES Servers collection.
Begin this task logged on to Admin as Contoso\Administrator with the password Passw0rd!
4.1. In the Configuration Manager console, click JRE Package.
5.2. On the ribbon, click Deploy.
6.3. In General, next to Collection, click Browse.
7.4. Click All SLES servers, and then click OK.
8.5. Click Next.
9.6. On Content, click Next.
10.7. On Deployment Settings, click Next.
11.8. In Scheduling, click New.
12.9. Click Assign immediately after this event, and then click OK.
13.10. Click Next.
14.11. On User Experience, click Next.
15.12. On Distribution Points, click Next.
16.13. On Summary, click Next, and then click Close.
14. Switch to SLES. Ensure you are logged on as Rootroot, and that Terminal is open.
17.
↪ /opt/microsoft/configmgr/bin/ccmexec –rs policy
The command is case sensitive and must be typed exactly as shown. This command forces a policy
evaluation cycle on the Configuration Manager client.
The software installation will commence after the next policy cycle is complete, however you may not
see the software installed for up to 10 minutes or more.
Verify JRE is installed
In this final task, you will verify that JRE is installed on SLES. It is important to note that this task may not
produce results for up to 10 minutes after the previous task has been run.
1. In Terminal, type the following command, and then press ENTER.
This command is case sensitive.
↪ rpm –qa | grep jre
Note that there is now a JRE package installed.
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