[JDEV] Help on Firewall
Matthias Wimmer
m at tthias.net
Sun Jul 21 09:26:03 CDT 2002
Hi Dave!
Dave wrote:
>BTW - There's also another interesting solution, if your firewall's
>blocked outgoing connections to port 5222 - convince the firewall admin
>of your favorite Jabber server to redirect some other port (such as 80,
>if web service isn't being needed - since blocking outgoing access to that
>port selectively isn't too easy for a firewall admin if his users are
>smart) to 5222, so when you connect to your.favorite.jabber.server:80,
>you're actually connecting to the daemon on port 5222, the normal
>Jabber server. Sure, you can use HTTP polling if you prefer, but if
>you don't need to, you'll appreciate all the advantages of a standard
>TCP connection. (This assumes that your firewall doesn't block all
>outgoing TCP connections, of course.)
>
>
All company firewalls block port 80 or redirect them to the HTTP proxy.
It's better to bind the Jabber server to port 443. This port is normally
used for https and you can use a CONNECT over a HTTP proxy to connect to
this port. E.g. this is implemented in Gabber.
Tot kijk
Matthias
--
Fon: +49-700 77007770 http://matthias-wimmer.de/
Fax: +49-89 312 88654 jabber://mawis@charente.de
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