Why is it that ssh with X11 auth forwarding fails -sometimes- on FC?
strombrg at dcs.nac.uci.edu
Fri Dec 31 01:58:28 UTC 2004
I finally got annoyed enough with that "X tunneling doesn't work with an
FC 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.
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 at optonline.net>
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