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Linux - Networking This forum is for any issue related to networks or networking.
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Old 07-10-2004, 09:57 AM   #1
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how to remote using iptables from outside

Hello all,

I need to access my linux box in my office from outside, for sure i will need to access ssh and mysql port...

I've look around the net but it seems making me confuse.. or maybe it because I use a diffrent equipment ???

We are using a wireless connection internet, our ip is 202.x.x.x

the router ip is

and my server is

I'm sure what I need is do something with Iptables PREROUTING.. but I couldn't make it so far..

I really need this thing working asap, and I don't have much time to surf around the net.

So please can anyone help me... please...

Old 07-10-2004, 10:13 AM   #2
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Your office router has to be set to forward ports 22 tcp and 3306 tcp from external ip to your office server.
Old 07-10-2004, 10:17 AM   #3
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Location: Beautiful BC
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Asssuming your router is a linux system

you will need rules like

sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d --dport 22 -j DNAT --to <localip>:22
sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d --dport 3306 -j DNAT --to <localip>:3306

/sbin/iptables -A FORWARD -i eth1 -o eth0 -d <localip> -j ACCEPT

edit /etc/sysctl.conf, set

net.ipv4.ip_forward = 1

and run

#/sbin/sysctl -p

Last edited by ppuru; 07-10-2004 at 10:27 AM.
Old 07-10-2004, 10:58 AM   #4
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wow.. that was quick... thanks a lot for your help.. I'll try it tommorrow.. first thing in the morning...

thanks again...


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