group credentials cache in X11-session (xfce4, gdm) question

[Dan Nelson]

In the last episode (Apr 30), Harald Schmalzbauer said:
> I'm wondering why and how it comes that after altering /etc/groups `id`
> doesn't give me the additional group, while `id harry` does.  If I quit my
> X session and relogin it works as expected.  Does gdm cache credentials? 
> Hard to find useful documentation for gdm...

"id" tells you the credentials of the current process, while "id harry"
tells you the group memberships in /etc/groups.  Your credentials are set
when you log in, and do not change ( unless you are root and call
setgroups() or initgroups() ).

-- 
	Dan Nelson
	dnelson at allantgroup.com