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Old 08-16-2004, 03:17 AM   #1
Registered: Apr 2004
Distribution: Red Hat
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Question Groups & Users

My distribution(Mandrake) came with a default set of users and groups. I have been trying to locate more information on what each group has access to and what their limitations are however to no avail.

I have noted the list of groups which I am unsure about.

1) nogroup
2) wheel
3) xgrp
4) rpc

Could someone please help me with what each group does and if I require them?
Old 08-16-2004, 05:22 AM   #2
Registered: Apr 2004
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Just a note: I recall reading that wheel is a group for administrative tasks however what do those tasks involve and allow.
Old 08-16-2004, 06:12 AM   #3
Registered: Jun 2003
Location: Copenhagen, Denmark
Distribution: Gentoo
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Re: Groups & Users

1) nogroup
Probably the equivalent group to the nobody user. It's just a convenience: a group with no privileges except those granted by the user and granted to all. Useful for cron scripts and similar.

If you're using PAM, wheel is a group with special privileges. A classic example is to only allow users in the wheel group to su to root. As you have a wheel group, you probably are using PAM, though I wouldn't know how it so configured -- look for pam under /etc

Sounds like services from me. rpc is usually inter-program comminication, but with three-letter abbreviations, who knows? I do not know xgrp.
Old 08-16-2004, 04:30 PM   #4
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Thank you.


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