[CentOS] file permissions and groups

[Michael Velez]

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Michael Kress
> Sent: Monday, November 20, 2006 12:16 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] file permissions and groups
> 
> On 11/19/2006 8:39 PM, Michael Velez wrote:
> > I have a file owned by apache:apache with permissions of 640.
> >  
> > I have added myself to the apache group using usermod -G (and I can 
> > verify that using the groups command) but I still can't read the 
> > abovementioned file.
> >  
> > Am I not getting something?
> 
> Hi Michael,
> 
> have you already tried the 'newgrp' command?
> cu - Michael
> 

When I use the newgrp command, I do change to the apache group and it works.

Do you mean 'su - Michael'?

su - michael is actually interesting.  Before the su -, the output of the id
command shows that I'm only in group michael.  After the su -, it shows I'm
in both groups michael and apache.  

Why is it that I'm in both groups after su -, and not while in a normal
xterm logging shell.  Also, I have the same problem of not being able to
access the file through the gnome desktop using File Browser (even though
I'm in group apache).

So, at a login shell doing su - works, both other options (xterm login shell
or desktop) do not.

Michael