Re: [gdm-list] Why do GDM 2.22.0 set xauth file owner as login user
- From: "Ray Strode" <halfline gmail com>
- To: "simon zheng sun com" <Simon Zheng sun com>
- Cc: gdm-list gnome org
- Subject: Re: [gdm-list] Why do GDM 2.22.0 set xauth file owner as login user
- Date: Wed, 21 May 2008 13:00:57 -0400
Hi Simon,
> On GDM 2.22.0, I noticed the owner of X authority file is set as login
> user.
>
> -rw------- 1 gdm gdm 52 May 21 23:27
> auth-cookie-XX37TRBU-for-gdm
> -rw------- 1 zheng other 52 May 21 23:28
> auth-cookie-XX5YOJBU-for-zheng
>
> Looking into source, X authority file is forced to set as login user
> when launching Xserver. On older V2.20, it's "root:root". Since Xorg
> process is run as root, why do we need this special setting. Might be I
> miss something. I'm confused where requires this setting. Any answer?
The X authority file is a generated "password" between X clients and
the X server. It's how the server knows it can trust a client
connecting to it. The X clients need to be able to read the
"password" so they can authenticate with the server.
Is this causing a problem?
--Ray
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