AZloco has set up a BigBlueButton ( <a href="http://bigbluebutton.org/">http://bigbluebutton.org/</a> ) server ( <a href="http://azlocobbb.banditti.com/">http://azlocobbb.banditti.com/</a> ).  When we try to use it from a browser in linux at locations like ASU, UAT where they block some traffic, we sometimes get disconnected or worse.  However, when we do the same thing from a browser in Windows (e.g. Firefox in both OSes), everything works fine.  I found this:<br>
<br><blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote"><h3>What ports must be open for external users to connect to BigBluebutton?</h3><p>These ports are 80 (HTTP), 9123 (Desktop Sharing), and 1935 (RTMP).  These ports are all TCP ports. </p>
<h3><a name="Does_BigBlueButon_support_tunneling?"></a>Does BigBlueButon support tunneling?</h3><p>Yes.
  If a remote user is unable to connect to port 1935, which typically 
occurs when a remote user&#39;s corporate firewall blocks external access to
 all other ports except port 80, then their BigBlueButton client will 
fail to connect to port 1935 and, after about ten seconds, fall back to 
tunneling through port 80. <br></p></blockquote><p>on <a href="http://code.google.com/p/bigbluebutton/wiki/FAQ#What_ports_must_be_open_for_external_users_to_connect_to_BigBlue">http://code.google.com/p/bigbluebutton/wiki/FAQ#What_ports_must_be_open_for_external_users_to_connect_to_BigBlue</a></p>
<p>so it would seem the &quot;client&quot; falling back to tunneling through port 80 happens from windows but not from Linux.  Maybe I am misreading this, but can anyone enlighten me and/or provide a solution?<br></p><br clear="all">
<br>-- <br>Dazed_75 a.k.a. Larry<br><br>The spirit of resistance to government is so valuable on certain occasions, that I wish it always to be kept alive.<br>  - Thomas Jefferson<br>