Pennysmalls » x windows http://pennysmalls.com A blog about Ruby, Rails and other tech. Mostly. Thu, 04 Mar 2010 07:24:12 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 debug1: Remote: No xauth program; cannot forward with spoofing http://pennysmalls.com/2007/10/03/debug1-remote-no-xauth-program-cannot-forward-with-spoofing/ http://pennysmalls.com/2007/10/03/debug1-remote-no-xauth-program-cannot-forward-with-spoofing/#comments Sat, 20 Oct 2007 18:37:54 +0000 Stephen Sykes http://pennysmalls.com/2007/10/20/debug1-remote-no-xauth-program-cannot-forward-with-spoofing/ I needed to install X on a remote fedora machine, and then use my local machine as the X server over ssh. Compiling & installing X went smoothly, but I got the following error when running ssh -X (with -v for debug output) to the remote machine:

debug1: Remote: No xauth program; cannot forward with spoofing

I figured /usr/X11R6/bin needed to be in the path, but modding the path in .bash_profile, /etc/ssh/sshrc, or similar places had no effect.

It turns out that sshd has a hard wired idea of where xauth is supposed to be:

$ strings /usr/sbin/sshd|grep xauth
/usr/bin/xauth
xauthlocation
maxauthtries
No xauth program; cannot forward with spoofing.

So there you are – the solution is simple:

# ln -s /usr/X11R6/bin/xauth /usr/bin/xauth
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