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You're missing xorg-x11-xauth. Install this package. |
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is xorg-x11-xauth installed (C5)? |
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For the record ... [johnny@myth ~]$ ssh -X -Y -l buildsvn 192.168.0.68 Last login: Sat Sep 22 07:30:22 2007 from myth.home.local [buildsvn@c5-i386-build ~]$ echo $DISPLAY localhost:10.0 |
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Hi All I just wanted to confirm that I am suffering from this same problem. rpm -q xorg-x11-xauth openssh xorg-x11-xauth-1.0.1-2.1 openssh-4.3p2-24.el5 grep X11 /etc/ssh/sshd_config #X11Forwarding no X11Forwarding yes #X11DisplayOffset 10 #X11UseLocalhost yes [user@client ~]$ ssh -Y user@server [user@server ~]$ echo $DISPLAY [user@server ~]$ rpm -q centos-release centos-release-5-1.0.el5.centos.1 |
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Yes, this was the solution to my problem. After installing xorg-x11-auth X11 forwarding began to work! |
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Unfortunately, this does not resolve the problem for me. |
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wibbit: is your **initial** DISPLAY set? |
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On the machine that I'm ssh'ing from (the client) DISPLAY is set. Also, if I manually add DISPLAY=localhost:10.0 every thing works as expected. |
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Some additional information on this. It would appear that on the box that is causing the problem, the SSH_TTY environment variable is not being set. Does this help? Is there any more information I can provide? |
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Is there any other information that I can provide on this? |
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Had same problem as wibbit. Issue for me was resolved by adding xauth package. You can see this by doing a ssh -X -v remote |
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I know this issue is two years old, but the problem is because xauth's install path differs from where sshd is looking. local$ ssh -vXY user@host.com debug1: Requesting X11 forwarding with authentication spoofing. debug1: Remote: No xauth program; cannot forward with spoofing. remote$ echo $DISPLAY remote$ strings /usr/sbin/sshd |grep xauth /usr/X11R6/bin/xauth remote$ ls -l /usr/X11R6/bin/xauth ls: /usr/X11R6/bin/xauth: No such file or directory remote$ rpm -ql xorg-x11-xauth | grep bin/xauth /usr/bin/xauth remote$ ln -s /usr/bin/xauth /usr/X11R6/bin/xauth remote$ logout local$ ssh -vXY user@host.com debug1: Requesting X11 forwarding with authentication spoofing. /usr/X11R6/bin/xauth: creating new authority file /home/user/.Xauthority remote$ echo $DISPLAY localhost:10.0 hope we can close out this issue now |
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Aha! well spotted. I wonder why for some people "it worked" after installing xauth, yet for others it did not? As xauth was certainly installed on that system (of course I've now gone through 2 jobs since originally posting this, so there is no chance of getting access to the original issue/box I had). |
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depends on the version of openssh openssh-5.8p1 has this problem and possibly some older versions of openssh 5.x. i do not have this problem on any centos 5.6 or 6.0 boxes. |
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It's IPV6. I just had this same issue. Out-of-box CentOS6.2 - everything worked fine. I configured my normal settings, including adding "net.ipv6.conf.all.disable_ipv6 = 1" to /etc/sysctl.conf (The recommended way to turn it off according to the docs). But now sshd keeps trying to bind ::1 and failing. The solution was to change "AddressFamily any" to "AddressFamily inet" in /etc/ssh/sshd_config and restart ssh. Voila! |
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I had this same issue but made the "AddressFamily inet" change mentioned by bevan and that fixed it. |
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Bevan and GeneBean's problem are related to CentOS-6, the initial issue had to do with CentOS-5 and specifically the openssh-5.8p1 package. If this is still an issue for folks, I will happily do a regression test with all versions of CentOS from 5.6 through 6-current. |
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my 2 cents: I just hit the issue. client: CentOS-5 openssh-4.3p2-82.el5.x86_64 remote server: CentOS-6 openssh-server-5.3p1-81.el6_3.x86_64, xorg-x11-xauth-1.0.2-7.1.el6.x86_64 default /etc/ssh/sshd_config reads: ... #AddressFamily any ... -> no X forwarding even if running ssh -X, ssh -Y or with "ForwardX11 yes" in ~/.ssh/config Changing on the remote CentOS-6 server /etc/ssh/sshd_config: "#AddressFamily any" -> "AddressFamily inet" for ipv4 only -> X11 forwarding works and the xauth message is shown upon .Xauthority creation: /usr/bin/xauth: creating new authority file /home/tru/.Xauthority imho, that's more a openssh-server "feature" on CentOS-6 than a bug on CentOS-5 at this time. |
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I need to enable the X11 without reconnection to ssh. Meaning I'm already connected to the server using : ssh root@server (without -X) any way I can still use X11 or gnome?? |
- Anonymous
