port forwarding using iptables (ftp)

spank · 01-05-2004, 07:48 AM

i have a linux router and in its lan i have 192.168.0.2 a box that is running a ftpd... i want outside users to be able to connect to it... how can I do it ?
please help... i really don't have the time to read the iptables firewall how-to

spank · 01-05-2004, 11:15 AM

is this a stupid question ? can it be done ?
thank you

benjithegreat98 · 01-05-2004, 05:52 PM

You should know how to use iptables before proceeding. Having said that...
Here is what I have in my router to forward ftp

iptables -A FORWARD -p tcp -d 176.16.1.101 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 21 -j DNAT --to-destination 176.16.1.101

That may not be the best way to do it, but those would be the lines I would use in MY setup. Yours may be slightly diiferent keeping these from working.

spank · 01-20-2004, 06:14 AM

I have a ftp on 192.168.0.101 the routers ip is xxx.xxx.xxx.xxx I would like people to be able to connect to 192.168.0.101 through me!
Thanx!