[Bug 882878] Re: With IPv6 disabled, openssh will not forward X connections

Bug Watch Updater 882878 at bugs.launchpad.net
Fri Jun 29 13:22:43 UTC 2012


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On 2011-08-17T15:00:46+00:00 Diego-ercolani wrote:

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20100101
Firefox/5.0

When you disable ipv6 from the yast2 network, system correctly remove
the assignation of ipv6 addresses from everywhere but there is an
annoying bug in openssh that break the possibility to make X11 tunnels
because it seems that ssh try to bind X11 tunnel to an ipv6 address even
with ipv6 disabled causing this kind of message in /var/log/messages:

Aug 17 16:47:28 franz2011 sshd[6300]: error: Failed to allocate
internet-domain X11 display socket.

this can avoided configuring correctly the file /etc/ssh/sshd_config
with the parameter:

AddressFamily inet

and restarting sshd.
This is done in according to this bug reported to debian bugsystem:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=422327#20


Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/882878/comments/0

------------------------------------------------------------------------
On 2011-12-05T13:58:14+00:00 Alberto-zacchetti wrote:

The same thing happens on my system. You can also fix it by entering the
-4 option in /etc/sysconfig/ssh, but it would be better to correct the
problem.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/882878/comments/4


** Changed in: openssh (Debian)
       Status: Unknown => New

** Changed in: openssh (openSUSE)
       Status: Unknown => Confirmed

** Changed in: openssh (openSUSE)
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/882878

Title:
  With IPv6 disabled, openssh will not forward X connections

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