Re: Why is it that ssh with X11 auth forwarding fails -sometimes- on FC[23]?

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I finally got annoyed enough with that "X tunneling doesn't work with an
FC[23] ssh server -sometimes-" problem to track down its source.

It appears that sometimes FC3's (and probably FC2's) sshd will only
attempt to set up X11 tunneling on IPV6, instead of both IPV[46].

This seems to work around it well enough for the time being:

1) Put "OPTIONS=-4" in /etc/sysconfig/sshd
2) Run "service restart sshd"

A more long-term solution -might- be to rebuild sshd with "--with-4in6".

On Mon, 2004-12-13 at 14:07 -0800, Dan Stromberg wrote:
> On Thu, 2004-12-09 at 09:29 -0500, Craig Thomas wrote:
> > On Wed, 2004-12-08 at 21:49 -0800, Dan Stromberg wrote:
> > > The FC3 host is the sshd server.  Same for FC2: the sshd server.
> > 
> > <snip>
> > 
> > > Yes.  It seems to say everything is fine, but then it still doesn't work
> > > most of the time.
> > 
> > <snip>
> > 
> > > tesuji-strombrg> xterm
> > > X connection to tesuji.nac.uci.edu:12.0 broken (explicit kill or server
> > > shutdown).
> > 
> > I'm late to this thread, so maybe I missed this but are you sure X
> > forwarding is enabled for the FC3 server?  the default behavior changed
> > from FC2 to FC3 WRT X forwarding in openssh.
> > 
> > http://download.fedora.redhat.com/pub/fedora/linux/core/3/i386/os/RELEASE-NOTES-en.html
> 
> Thanks for the tip.  Does it appear that this is saying that FC3's
> client-side ssh behavior changed?
> 
> I'm ssh'ing from RHEL 3 to FC2 and FC3, and having problems with that.
> RHEL 3 doesn't seem to have the new -X behavior yet
> 
> 
> > 
> > HTH,
> > 
> > -- 
> > Craig Thomas <cjtinhp@xxxxxxxxxxxxx>
> > 
> 

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