[tlug] iptables: port forwarding

[Nguyen Vu Hung <vuhung@example.com>]

Hi all,

I have a linux server 7.x, running kernel 2.4 and iptable. Our server is
behind a provider's firewall and only port 24, 80, 53(tcp) are open. So I
can not run ssh server on this box.

So I wanted to forward packet from 130.153.xxx.yyy( client side), tcp
protocol, port 80 to where ssh-server listen. On the server side, I did:

bash-2.05# /sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp --dport
80 -s 130.153.xxx.yyy -j REDIRECT --to-ports 22

and from client, I tried to connect:

$ssh -p 80 vuhung@example.com

but I got a connection timeout error :(

I need your quick helps. TIA

Vu Hung 

+----------------------------------------------------------+
|            Nguyen Vu Hung( vuhung@example.com )              |
| The University of Electro-Communications, Tokyo, Japan   |
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