[CentOS] C6: ssh X-forwarding does not work

Lorenzo Martínez Rodríguez

lorenzo at lorenzomartinez.es
Wed Oct 26 13:16:24 UTC 2011


Hi,

I have a working configuration with CentOS 6. Can you try to set next 
lines in /etc/ssh/sshd_config and restart SSH server please?

#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
X11UseLocalhost yes


In fact I do not have xorg-x11-auth rpm installed:

[root at Carmen ~]# rpm -qa|grep -i xorg-x11-auth
[root at Carmen ~]#

and it works...

Give it a try and let us know.
Regards,

El 26/10/11 11:56, Rainer Traut escribió:
> Hi all,
>
> I have C6 i386 with cr repo enabled;
>
> problem is, I can't get x-forwarding to work, xorg-x11-auth rpm is
> installed, have checked sshd config for
>
> #X11Forwarding no
> X11Forwarding yes
> #X11DisplayOffset 10
>
> Here is a verbose ssh logon, I can't see any difference to a working server:
>
> debug1: Authentication succeeded (password).
> debug1: channel 0: new [client-session]
> debug3: ssh_session2_open: channel_new: 0
> debug2: channel 0: send open
> debug1: Entering interactive session.
> debug2: callback start
> debug2: x11_get_proto: /usr/bin/xauth  list unix:10.0 2>/dev/null
> debug1: Requesting X11 forwarding with authentication spoofing.
> debug2: channel 0: request x11-req confirm 0
> debug2: client_session2_setup: id 0
> debug2: channel 0: request pty-req confirm 0
>
> and netstat does not show the open ports in the 60xx range:
>
> # netstat -antp|grep 60
> tcp        0      0 192.168.200.31:22           192.168.200.30:58604
>       VERBUNDEN   2537/sshd: xxx [
>
> Display var is not set...:
>
> [root at tr-centos ~]# env|grep -i DISPLAY
> [root at tr-centos ~]#
>
> Any obvious mistake?
>
> Thx
> Rainer
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>
>


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Lorenzo Martinez Rodriguez

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