Re: Question about Users
Am Samstag, 13. Oktober 2012 schrieb Ralf Mardorf:
> On Sat, 2012-10-13 at 10:36 -0400, Stephen P. Molnar wrote:
> > Although I have been using Linux for a number of years now I have
> > just migrated my systems to Debi an and I have a question about
> > permissions.
> >
> >
> >
> >
> >
> > Every distribution that I have used in the past has assigned a User,
> > for example 'computation'. in my case and has automatically put the
> > User in a Group 'users'. I noticed that in Debian both the User and
> > Group are the same, i.e., 'computation'. My question is why?
>
> Why not ;)?
>
> "users: While Debian systems use the user group system by default (each
> user has their own group), some prefer to use a more traditional group
> system. In that system, each user is a member of the 'users' group." -
> http://wiki.gacq.com/index.php/Debian_default_system_groups_description
Hmmm, I do think that this does not really answer the question "Why" here.
Consider you have three users:
- stephen
- ralf
- martin
Now stephen wants to give ralf, but not martin read access to his home
directory. Nothing easier than that with user group system:
chmod g=rx,o= /home/stephen
adduser ralf stephen
Done.
Granted this can be done with ACLs as well, but without ACL it would not
be possible if all users were in the same group.
OTOH with all users in the same group its easier to create a group
directory.
> It's your freedom to setup your Linux as needed. PolicyKit, su, sudo,
> groups and permissions etc..
>
> Note, that groups with the same name, for different installs, could
> have different IDs.
>
> id -a
Option "-a" has no meaning for Linux variant of "id", at least not
anymore, and is only there for compatibility reasons.
Ciao,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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