Disable ‘reopen windows when logging back in’ option in Lion
You can use the following command to disable the 'reopen windows when logging back in' option in Lion:defaults write com.apple.loginwindow LoginwindowLaunchesRelaunchApps -bool false
Tips
Certificate Requests in Lion
While in Snow Leopard you may have had to script you way to fame and money to get your Mac to get a certificate from a Microsoft CA, in Lion it's mostly done for you.Take a look at this support document for the gory details on using a profile to get your Mac to request a certificate.
Alternate mail stores when upgrading from 10.5 Server to 10.6 Server
I know that this isn't completely tested to see if it is a consistent behavior, but I ran into an issue after upgrading a Leopard server to Snow. The server was running mail services utilizing both the standard spool location and an alternate mail store.
Using MySQL with PHP on Server 10.6
If you are getting an error "Can't assign requested address" you may have a problem with the mysql port. I had just moved my server to a MacMini running Mac OS X 10.6 and mysql_connect was giving this error. Going into the /etc/php.ini file and setting the default port number to 3306 fixed the problem.
SUS with a proxy
I may have found a temporary solution to allow the Apple Software Update Service (ASUS) to work through a corporate proxy server.
mcxrefresh
Snow Leopard comes with a great little new command in mcxrefresh, which as you might have guessed refreshes policy information. This allows you to request a new set of policies and provided the command returns with no errors the process has completed successfully (exit's 0).
Application location changes
Apple has moved Directory Utility from /Applications/Utilities/ to /System/Library/CoreServices/ .It can also be accessed through the Accounts System Preference by going to Login Options and clicking "Edit" next to the network account server at the bottom.
Disable WINS in Leopard
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.
Easily change your default NetBoot image from the command line
If you've ever tried using the command line to change the defult NetBoot image on your OS X Server, you know that it can be a pain in the butt and have probably resigned yourself to just using the GUI -- even though it…
Auto iChat Buddy Lists in Advanced Server
To activate the autobuddy function for the Jabber server first get the actual settings: sudo serveradmin settings jabber jabber:enableAutoBuddy = noNotice that it's off, so now go ahead and set it to yes:sudo serveradmin settings jabber:enableAutoBuddy = yesAfter which you'll have to restart the Jabber server.