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<p class="MsoNormal">Hey all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We are up to 560 clients in our spacewalk environment, and today when I restarted jabberd on the server I noticed this in the sys logs:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">kernel: possible SYN flooding on port 5222. Sending cookies.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">..and none of the clients appear to be able to connect. Restarting osad on the client end produces:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Shutting down osad: [ OK ]<o:p></o:p></p>
<p class="MsoNormal">Starting osad: Traceback (most recent call last):<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/share/rhn/osad/jabber_lib.py", line 252, in setup_connection<o:p></o:p></p>
<p class="MsoNormal"> c = self._get_jabber_client(js)<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/share/rhn/osad/jabber_lib.py", line 309, in _get_jabber_client<o:p></o:p></p>
<p class="MsoNormal"> c.connect()<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/share/rhn/osad/jabber_lib.py", line 567, in connect<o:p></o:p></p>
<p class="MsoNormal"> jabber.Client.connect(self)<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/lib/python2.4/site-packages/jabber/xmlstream.py", line 533, in connect<o:p></o:p></p>
<p class="MsoNormal"> self.header()<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/share/rhn/osad/jabber_lib.py", line 1189, in header<o:p></o:p></p>
<p class="MsoNormal"> self.process(jabber.timeout)<o:p></o:p></p>
<p class="MsoNormal"> File "/usr/share/rhn/osad/jabber_lib.py", line 1057, in process<o:p></o:p></p>
<p class="MsoNormal"> data = self._read(self.BLOCK_SIZE)<o:p></o:p></p>
<p class="MsoNormal">error: (104, 'Connection reset by peer')<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Has anyone else experienced this.. or more to the point, come up with a solution?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<br>
Brendan<o:p></o:p></p>
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