Changing a User's UID on Apple XServe / Snow Leopard
Written in 2010. Versions, commands and links may well be out of date.
Due to exporting NFS file systems from Linux boxes to an XServe, I had need to match the new users’ UID on the XServe to the Linux UIDs. Unfortunately this was not so obvious.
There’s a good how-to here:
http://www.inteller.net/notes/change-user-id-on-snow-leopard