You have a CentOS (for example) workstation that is a member of a Windows AD domain courtesy of modified smb.conf and krb5.conf files. There are, thus, no local user accounts on the linux workstation. There is a network application that benefits most (maybe even requires) the user's numerical portion of their employee ID as their linux workstation id. Thus, if I log in, my domain username might be scott12. My employee ID might be se123456. If I log into the linux workstation, I'm going to log in as scott12 along with providing my password. I type id at the shell, and am given something like scott12 (10001) for the user. How can I manage to make the id [also] equal to 123456 for user scott12 without breaking anything? Thanks for any leads. Scott