Creating Accounts on Private Unix Workstations
Judy Richards CN/DCI
On Unix systems each userid has associated with it a unique numeric User ID, ``UID'' and a numeric Group ID, ``GID'' For several years, whenever a new user has registered to use any of the central computer services, we have automatically assigned a Unix userid and numeric UID to them. It has also been possible for users to register a userid and UID without having an account on any central machine. Numeric group IDs have been assigned to all existing Computer Groups and can also be reserved for groups not using central facilities.
As new central Unix services are introduced, such as the distributed file system AFS, you will need to have a common userid, UID and GID on your local machine and the central servers in order to profit from them. Although we cannot force you to use a centrally registered account on your local workstation, we can't stress strongly enough that it will be to your advantage to do so!
Therefore, when setting up your workstation or server or adding new users to it, PLEASE consult the central database to find out the userid, UID and GID to use. The easiest way to do this is to use the Unix command 'phone' or the www interface to the phone book or the command XWHO on CERNVM. If the person (or project account) isn't already registered, please request your group administrator to do so. To find out who your group administrator is, use the phone interface in www or XWHO on CERNVM.