Thank you for the response, but that didn't work either - same thing, it
just hangs until the connection times out.
I'm sorry it took so long for me to get back to this, but I have
appended my original query in its entirety since it's been a while Any
help at all is appreciated.
>>>>> "S" == Sietse van Zanen <sietse@xxxxxxxxx> writes:
S> --_8B2D74D2-40BE-41C2-9D7E-55F3440F2DBA_ Content-Type: text/plain;
S> charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
S> I think you should use: ssh -L 143:localhost:143
S> The result of using the servername might force you to add an iptables
S> rule = to except connections from your server IP.
S> -Sietse
From: Alex Feldman Sent: Wed 22-Nov-06 21:03 To:
netfilter@xxxxxxxxxxxxxxxxxxx Subject: can't tunnel through iptables
This is probably really an ssh question, but I'll try it here anyway.
I am running tptables v. 1.3.5 on FC5.
I am running iptables on my server. It locks down most everything
for INPUT, only opening up a few ports for mail and http.
I have a second script I can run besides my usual one. The only
difference between the two ar the following two lines in the second
script:
iptables -A INPUT -p tcp -i eth0 --dport 143 -m state --state NEW -j
ACCEPT iptables -A INPUT -p udp -i eth0 --dport 143 -m state --state
NEW -j ACCEPT
With those two lines in place, I can use an IMAP mail client
(thunderbird) from my laptop to connect with my server and everything
works great. Without them, thunderbird just hangs.
I would like to run the IMAP protocol through an ssh tunnel. So
leaving the orignal script in place, I su'd to root on my laptop and
entered the following command:
ssh -L 143:myserver:143 myserver
and it let me login to the server after performing the RSA
authentication, but I cannot connect my local thunderbird client to
the server - it hangs just as would if had not tried to establish the
tunnel.
I have tried several variations on this, including telling the
thunderbird on my laptop to use a non-well-known port, e.g., 8118,
and then not suing to root on the laptop but just as myself entering
the command
ssh -L 8118:myserver:143 myserver
to try to set up the tunnel without being root, but nothing seems to
work - thunderbird always tries and retries and eventually gives up
trying to establish a connection.
Thanks for any ideas.
--
--alex alex@xxxxxxxxxxxxxxxxxxx
<a href="http://math.boisestate.edu/~alex/";>Alex Feldman</a>
