Re: [Firestarter-user] Port 6667 (IRC) blocked

[David M. S. <dms...@am...>]

On 2002.03.11 12:00 jb...@sh... wrote:
> > I've been trying to get IRC (X-Chat) to work on my network, but have
> > had limited success.
> >
> > Server: RH 7.2 kernel 2.4.9-31, iptables 1.2.5, firestarter 0.8.2, 
> connected to a static DSL
> > Client: RH 7.2 kernel 2.4.9-21 (2.4.9-31 hangs the machine at boot, 
> any guesses as to why?)
> >
> > If I allow TCP and UDP connections for everyone at port 6667 on the
> > server, then I can run X-Chat on the server, though the initial
> > connection to a given IRC server is a bit reluctant. On the other 
> hand,
> > the client system on my network can't even ping an IRC server, much
> > less connect to one using X-Chat. I also have some Windows machines 
> on
> > this network, but have not tried using mIRC or anything like it on 
> them.
> > Any thoughts? I'd rather not run applications on the server if 
> possible.
> 
> 
> David - I can help on the "initial reluctance" to connect. Many IRC
> servers attempt to authenticate via inetd through port 113. Best way 
> to
> deal with this is just to open up port 113 for all users (bottom pane 
> of
> firestarter dynamic rules page). There is really no risk involved 
> here,
> at least I have never heard of a DDoS attack or some such via this
> port.

I've seen some usage of port 113 in the past. I just tried it, and it 
took care of the above-mentioned server connection. It didn't help on 
the client side, though.

David Stowell