May 22, '06 07:30:04AM • Contributed by: efarrugia
In the days before 10.4, a user with a user ID lower than 500 would be hidden from the login window. This was especially practical when creating server administration users like postgres. For some reason, 10.4 didn't preserve this behaviour. This hint explains one method of hiding such users by defining each of them in a list. Here's a solution that will simply hide all the users with IDs below 500, as previous OS X releases did by default.
Open Terminal, and type this command:
sudo defaults write /Library/Preferences/com.apple.loginwindow \
Hide500Users -boolean true
This takes care of the login window, as well as the Fast User Switching menu. It also does not add the "Other..." option to the login window.
