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Deploying Suse Linux Enterprise Server

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Managing Your Server

Post Configuration Procedures

It is said that "the devil is in the details", this is very true when deploying servers. If you forget a step or two during deployment, it can take you hours (in some cases days) to correct the error. So, before you start connecting clients, adding users, etc. there are a few items that you should probably look into completing. Here is a list of some of the items to take a look at:

/etc/skel - This directory is copied to a new user's home directory when you create the user. It is imperative that you ensure that any directory that you want every user to have, or is required by other components to work properly (especially if you implement Folder Redirection with Windows Clients) is included within the /etc/skel directory.

scripting - GNU/Linux machines are highly scriptable and it can benefit your deployment greatly if you implement some daily or weekly scripts to alleviate the need to manually administer your server. A few items to look at for scripting would be updating any databases (such as Freshclam and SquidGuard definitions), backing up different databases (such as LDAP and MySQL databases) and other mundane tasks such as fixing file permissions and backing up files.

NTP Server - With modern Operating Systems, it is imperative that you ensure that all of the internal clocks of all of your servers and clients are synchronized. To do this it is recommended that you configure a NTP Server on your network. Fortunately Yast has an easy to use Module, "NTP Configuration", that allows you easily configure a NTP Server for your network.

Disable Unneeded Services - Your server may start services that you may not need. It is recommended that you utilize the Yast "System Services" module to do this. A few services to disable may include esound and alsa sound services, the microcode service (when not running Intel processors), novell-zmd (if you do not utilize Zen Works or zen-updater), powersaved, etc.

Configure Power Management - By default SLES utilizes the advanced features of certain processors, including the ability to change the speed of the processor. They may not be beneficial to your environment and you can disable it through the "Power Management" Yast module.

Disable the Graphical Environment - To stabilize your server it is recommended you disable the Graphical Environment from starting upon bootup. To do this, visit the "System Services" Yast module, go to the "Expert Mode" and set the default runlevel to "3: Full multiuser with network". If you need to launch the graphical environment, simply log in as a normal user and issue the "startx" command.

Move the SSH Port - If your server is going to be a presence on the Internet, it is highly recommended that you move the port that SSH listens to from 22 to a random number.

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