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Full Discussion: Solaris 10 groups
Operating Systems Solaris Solaris 10 groups Post 302976497 by jim mcnamara on Wednesday 29th of June 2016 10:42:31 PM
Old 06-29-2016
I would consider a minimalist approach. It looks like the old system was using standalone authentication, then LDAP was added. Poorly. If LDAP has foo with group number 111 and /etc/group has foo with 122 it can affect what you see -- tools that show file ownership and permissions or /etc/passwd when changing or adding groups to an account. Like ls, passwd, chown, chgrp, id

Applications generally use the group number NOT the name to resolve file access.
BEFORE you change anything, check to see what a group (using the group number)
is assigned to: file ownership is the important one. If you have sudo also verify that name and its use in /etc/sudoers.

If you want to change anything consider only using groupmod to change the name e.g., from foo to foo1
Do not change the group numbers as a first fix. And consider LDAP as the 'truth' in the choice of names.

Also check all of the applications scripts for hardcoded group names. You will have to rectify those entries when you change the spelling of the group name.
 

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LEARN ABOUT OSF1

groups

groups(1)						      General Commands Manual							 groups(1)

NAME

       groups - Displays your group membership

SYNOPSIS

       groups [user]

DESCRIPTION

       The  groups command writes to standard output the groups to which you or the specified user belong.  The Tru64 UNIX operating system allows
       a user to belong to many different groups at the same time.

       Your primary group is specified in the /etc/passwd file. Once you are logged in, you can change your active group  with	the  newgrp  shell
       command (see sh). When you create a file, its group ID is that of your active group.

       Other groups that you belong to are specified in the /etc/group file.  If you belong to more than one group, you can access files belonging
       to any of those groups without changing your primary group ID.  These are called your concurrent groups.

NOTES

       The /etc/passwd and /etc/group files must be on the same node.

EXAMPLES

       To determine your group membership, enter: groups

       The groups to which you belong will be displayed.  For example: devel  prod

FILES

       Contains group information.  Contains user information.

SEE ALSO

       Commands:  csh(1), ksh(1), sh(1)

       Functions:  initgroups(3), setgroups(2)

																	 groups(1)
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