View source for KB 395

===X Forwarding not working right with FreeBSD===
 Article:395
 Created:2005-04-19 13:47:40
 Categories:
   SSH
   FreeBSD

====Question or Symptom====
I just set up a new FreeBSD desktop machine and X forwarding does not
always work.


====Resolution====

"ssh -X" enables X forwarding on an SSH session.  I recently installed a
FreeBSD 5.3 system, and my forwarded X sessions weren't working quite right.
Some applications worked OK (like xterm) but others (like some Perl/Tk apps)
would give this error:
  
 X Error of failed request:  BadAtom (invalid Atom parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Atom id in failed request:  0x157
  Serial number of failed request:  11
  Current serial number in output stream:  11
  

The fix is to use "ssh -X -Y" to enable Trusted X11 forwarding.  Or, you can
set "ForwardX11Trusted yes" in /etc/ssh/ssh_config to affect all ssh client
sessions on your host.