[NBLUG/talk] User groups in linux

[Steve Johnson]

Hey, great answer, that makes total sense.

-Steve

On Mon, Jun 28, 2004 at 04:06:51PM -0700, Eric Eisenhart wrote:
> On Mon, Jun 28, 2004 at 04:01:52PM -0700, Steve Johnson wrote:
> > I'm curious, a few years back, it seems all the Linux distros went
> > from putting everyone into one group (users) and started putting each user
> > account into its very own group (with the same name as the user).
> > 
> > Anyone know what the reasoning behind this was?  Is it a security issue?
> 
> My guess:
> 
> It allows the umask to be set to 0002 instead of 0022, which means that
> files in a directory that are *supposed* to be shared (have a different
> group than the user-specific group with multiple people in the group) get
> the right permissions.
> 
> I've commonly run into problems with an 0022 umask and things like shared
> web space, CVS repositories, etc.  Setting setgid on the directory doesn't
> help any with an 0022 umask, but works *great* with an 0002 umask.
> -- 
> Eric Eisenhart
> NBLUG Co-Founder & Director-At-Large
> The North Bay Linux Users Group
> http://nblug.org/
> eric at nblug.org, IRC: Freiheit at freenode, AIM: falschfreiheit, ICQ: 48217244
> 
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