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	<title>KB 395 - Revision history</title>
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	<updated>2026-10-06T22:38:52Z</updated>
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	<entry>
		<id>https://wiki.swcp.com/w/index.php?title=KB_395&amp;diff=190&amp;oldid=prev</id>
		<title>Jamii: New page: ===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 ...</title>
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		<updated>2008-06-04T05:11:22Z</updated>

		<summary type="html">&lt;p&gt;New page: ===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 ...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===X Forwarding not working right with FreeBSD===&lt;br /&gt;
 Article:395&lt;br /&gt;
 Created:2005-04-19 13:47:40&lt;br /&gt;
 Categories:&lt;br /&gt;
   SSH&lt;br /&gt;
   FreeBSD&lt;br /&gt;
&lt;br /&gt;
====Question or Symptom====&lt;br /&gt;
I just set up a new FreeBSD desktop machine and X forwarding does not&lt;br /&gt;
always work.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
====Resolution====&lt;br /&gt;
&lt;br /&gt;
&amp;quot;ssh -X&amp;quot; enables X forwarding on an SSH session.  I recently installed a&lt;br /&gt;
FreeBSD 5.3 system, and my forwarded X sessions weren&amp;#039;t working quite right.&lt;br /&gt;
Some applications worked OK (like xterm) but others (like some Perl/Tk apps)&lt;br /&gt;
would give this error:&lt;br /&gt;
  &lt;br /&gt;
 X Error of failed request:  BadAtom (invalid Atom parameter)&lt;br /&gt;
  Major opcode of failed request:  20 (X_GetProperty)&lt;br /&gt;
  Atom id in failed request:  0x157&lt;br /&gt;
  Serial number of failed request:  11&lt;br /&gt;
  Current serial number in output stream:  11&lt;br /&gt;
  &lt;br /&gt;
&lt;br /&gt;
The fix is to use &amp;quot;ssh -X -Y&amp;quot; to enable Trusted X11 forwarding.  Or, you can&lt;br /&gt;
set &amp;quot;ForwardX11Trusted yes&amp;quot; in /etc/ssh/ssh_config to affect all ssh client&lt;br /&gt;
sessions on your host.&lt;/div&gt;</summary>
		<author><name>Jamii</name></author>
	</entry>
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