OSX "Long Username" "Short Username"

[Axehack]

Hi all, I have a problem here,

We have about 20 mac's on AD, we have a policy where all passwords must be changed every 90 days.

Every week there is someone who needs me to help them because they cannot print or check their emails because when they change their password, they must update the keychain and for some reason, OSX automatically uses "Long username of (system info)" instead of "short username of (system info)"

How can I fix this as its becoming a PITA!!

 

[Axehack]

Never mind... I found the answer myself!
In case any of you have Macs on AD, and were wondering:

defaults write /Library/Preferences/com.apple.NetworkAuthorization UseShortName -bool YES

This will set the default user name to “short username of(system info)” instead of “long username of (system info)”

Since the mac will authenticate with either, but AD, printers and exchange require the short username, there should be no harm in this.