Slow Open Directory on OS X Server

Ever since I've been playing with my Mac mini with OS X server 10.6.4 I have had on-and-off problems in the authentication/Open Directory area.

• Some accounts authenticate really quick, while others take minutes to authenticate.
• Accessing the Open Directory through the Workgroup Manager is as slow as a slow boat to China. Changing users (just by selecting them) takes another boat along the Pacific.

So it was time to start digging into the phenomenon called 'Open Directory'.

The manual from Apple isn't much help in troubleshooting a slow Open Directory, so it was time to search the interwebs and start experimenting. If it didn't work, I can always reinstall the entire server from scratch.

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