I've borrowed from Peter Bukowinski's script that will lookup when an AD user's password is due to expire, and expanded upon it to run as a task in the OS X menu bar. The applet includes preference settings for the following: 

1. Adjust how often you are required to change your password (5 – 365 days).
2. Automatically launch the applet at logon. 
3. Display the date your password will expire on the logon window (requires admin permissions).  

This applet is open source and hosted on Google Code: Password Monitor.

Ed. Note: This is interesting as otherwise you'll always be visible over WINS/NetBIOS whether you're actually sharing via SMB or not. 

Finally I believe I found the magic command to disable WINS on Leopard to stop it from showing on a Windows network.

 sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server RegisterWINSName -bool false 

Aqua Connect is giving away a 20-user license of their server and 20
thin client workstations to an educational institution in order to promote more green computing. Bring along
your own Xserve and you'll have a full lab.

More details and the rules for entry can be found at www.EduGoGreen.com.

I had a hard time finding a step-by-step procedure for setting up OS X Server Wiki with Active Directory Integration (aside from just setting authentication to plain text on the Apple site) so, I wrote the following procedure.  Feedback is welcome.

 Enterprise Apple Xserve Wiki and Blog using Active Directory

This may work on Leopard Server as well, but I haven't tested it. There are several brute-force VPN protocol attacks rampant on the internet, and they may leave your VPN service in an unusable state by flooding it with connection requests. 

Read on for a solution… 

NausicaMedia, the french ACSA company, has translated the latest "Tips and Tricks for Macintosh Management for Leopard" in french.

For all the french speaking sysadmins around the world, you will be able to read the John de Troye's guide for managing your users accounts in your own language.

"Trucs et astuces pour la Gestion du Macintosh pour Leopard" is available at NausicaMedia's website.

I've been doing some pretty intensive research down here with iSCSI setups of various kinds. This market segment was a little rough a year ago…but it's much better now. Though there are still no "official" OS X Server setups that support it….certainly not Xsan (too bad!)

read on for a few more iSCSI notes…

Since we haven't seen much about this elsewhere…

Novell have now released Open Enterprise Server 2 SP1 which includes new Novell-engineered protocol support for Apple Filing Protocol (AFP) on the Linux platform.

See http://www.novell.com/products/openenterpriseserver/ for more information.

After 6 years of development, Mike Bombich is retiring NetRestore, one of the most used and useful tools for OS X mass deployment. Mike cites an aging code base and other tools in the market as reasons for his descision. Read all the details here

I have to set up the IT infrastructure for a company that has 4 different offices.  Two of the sites have Apple based clients and the other two have windows based clients.  All of the servers are Xserves.  I hope to set up a single Open Directory structure that can handle Mail, a Corporate Intranet Site, a Corporate Website, Home Folders (for both the OSX and Windows laptops/desktops), Job Folders, and Backup for all of these.  There will be roughly 75 users at the HQ, and less than 20 users at each of the 3 satellite offices.

Our current equipment includes 2 or more Xserves at every location
(plus Xserve RAIDs at the main office), 55 iMacs / Mac Pros, 13 MacBook
Pros / Airs, 30 Windows Desktops, and 7 Windows Laptops.  Our network
infrastructure is gigabit at all of the locations.

Currently
each office has it’s own Open Directory master and separate fileservers
for Job Folders and Home Folders.  The Corporate office hosts the mail,
websites, and backup for all offices.

Any help or advice for creating this infrastructure in a secure and reliable way would be greatly appreciated!