If you ordered an X-Server without a video card, but need one here's a down-n-dirty tip: If you have an old B&W PowerMac lying around, swipe the video card from it and use it in the upper slot. It works fine, won't void your warranty and gives you the basic functionality you need to manage the beastie!
Use the security command to access keychains. Read the man page, but usage is pretty easy. It's especially handy when you need to find out your IPSec shared key and you only have an ssh connection.
The Berkeley DB tools that should have come with the OS Michael Bartosh has a pkg installer for the Berkeley DB utilities that are necessary to roll your Cyrus and OpenLDAP transaction logs in addition to performing other housekeeping chores for any bdb database.
Not quite OS X Server, but since most of us do some kind of imaging... Check out this command: sudo pico /System/Library/Frameworks/ScreenSaver.framework/Versions/A/Resources/EngineDefaults.plist This command is on one line, remember.
How to kerberize your OS X Server when using AD for authentication. I was going to write up my own, but Michael has done a great job of documenting all this and there's nothing I can add.
I'll incorporate this into the other article. I had a deal of trouble with cyradm after installing it - things simply would not work as I wished (though the install was easy).
Had an Xserve with the RAID card on order since before time began? As of 10.3.5 you can take a look at man megaraid or at Apple's RAID card docs and learn how to use it before it comes.
Ever wished that you had setup your Mac OS X Server with a boot RAID before you installed everything? Afraid that making a RAID mirror now will require you to backup, format, and restore?
I've noticed at times that although I can send mail in SquirrelMail on OSXS, I can't see any visible sign that the mail went out - I don't get redirected to the Inbox, and can only see that I've sent mail if I look at the Sent mailbox...
I recently came up with the idea of using sieve scripts that I installed using Joel's article to filter my spam. I work for a University that filters all mail that comes to our site mail server through spamassassin. Messages that they suspect are spam get marked with the header X-SPAM-Level: and a number of stars.
