Iptables redirect to IP:PORT

Yazeed98 · 08-10-2015, 09:53 AM

Hello LQ, I want to redirect gameserver(CS-SERVER) to IP:PORT with iptables I have tried this
http://www.debuntu.org/how-to-redire...sing-iptables/

But after putting Can't view that server response.
Here is example:

Real-Ip before redirect:
https://i.gyazo.com/42ce7e282853cefc...d138d3e467.png

After redirect:
https://i.gyazo.com/d20af9cb07b0cf01...0e85f65ca1.png

-Thanks alot

lazydog · 08-10-2015, 02:14 PM

How about showing us what you did instead of showing screen shots?

Show me the command you typed to add the rules to your firewall and also show your firewall rules .

Yazeed98 · 08-10-2015, 02:23 PM

Quote:

Originally Posted by lazydog

How about showing us what you did instead of showing screen shots?

Show me the command you typed to add the rules to your firewall and also show your firewall rules .

Sure
iptables -t nat -A PREROUTING -p udp --dport 27015-j DNAT --to-destination ip:27015
iptables -t nat -A POSTROUTING -j MASQUERADE

lazydog · 08-11-2015, 10:58 AM

OK so you most likely have more then one interface on this box correct?
If so then you need to tell the rules which interface that should be applied to.
If eth0 is your WAN port then you need to do this:

(you should always wrap your code in code tags)

Code:

iptables -t nat -A PREROUTING -i eth0 -p udp --dport 27015-j DNAT --to-destination ip:27015
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE