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bug#23317: openssh: ssh client: xauth path is invalid - "/usr/X11R6/bin/
From: |
Ludovic Courtès |
Subject: |
bug#23317: openssh: ssh client: xauth path is invalid - "/usr/X11R6/bin/xauth" |
Date: |
Mon, 01 Aug 2016 11:51:01 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Hi!
Danny Milosavljevic <address@hidden> skribis:
> But
>
> $ ssh -Y -o XAuthLocation=$(which xauth) daya20
>
> works without the patch.
>
> And
>
> $ ssh -Y daya20
>
> works with the patch.
I pushed the patch as commit 683a4a34cd4a565cbdb0b46a326e30795657814c.
This increases the closure size of OpenSSH from 89 to 118 MiB (+33%),
but I think it’s a useful addition.
> But
>
> $ ssh -X daya20
>
> never works, with or without the patch. Huh.
I’ve straced “ssh -X”, and it shows that xauth fails like this:
--8<---------------cut here---------------start------------->8---
4742 write(2,
"/gnu/store/86f0c3h99sl9z4x4w30hfy33i7nv2ik9-xauth-1.0.9/bin/xauth: (argv):1:
", 78) = 78
4742 write(2, "couldn't query Security extension on display \":0.0\"\n", 52) =
52
4742 unlink("/tmp/ssh-FDByknME3mmd/xauthfile-c") = 0
4742 unlink("/tmp/ssh-FDByknME3mmd/xauthfile-l") = 0
4742 umask(022) = 077
4742 exit_group(1) = ?
--8<---------------cut here---------------end--------------->8---
This is because the SECURITY extension are disabled in our xorg-server
package. We could configure it with --enable-xcsecurity, but upstream
disables it by default and it seems to be deprecated:
https://www.x.org/wiki/Development/Documentation/Security/
Thoughts?
Ludo’.
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