Use iptables to redirect players to new IP

live4net · **Author**

How to redirect players to new dedicated server (CS:GO) using iptables? I try this iptables rule:

Code:

#!/bin/sh

echo 1 > /proc/sys/net/ipv4/ip_forward

iptables -F
iptables -t nat -F
iptables -X

iptables -t nat -A PREROUTING -d 1.1.1.1 -p tcp --dport 27015 -j DNAT --to-destination 2.2.2.2:27015
iptables -t nat -A PREROUTING -d 1.1.1.1 -p udp --dport 27015 -j DNAT --to-destination 2.2.2.2:27015
iptables -t nat -A POSTROUTING -j MASQUERADE

1.1.1.1 is old IP, 2.2.2.2 is new IP.

When I add old IP (1.1.1.1) to favorities, then I see new server status (2.2.2.2). But when I try to connect to old IP, I get errors:

Code:

Connecting to public(1.1.1.1:27015) ...
Server using 'public' lobbies, requiring pw no, lobby id ffffffffffffffff
ChangeGameUIState: CSGO_GAME_UI_STATE_LOADINGSCREEN -> CSGO_GAME_UI_STATE_INGAME
**** Unable to localize '#GenericConfirmText_Label' on panel descendant of 'MMStatus'
ChangeGameUIState: CSGO_GAME_UI_STATE_INGAME -> CSGO_GAME_UI_STATE_MAINMENU

detc · 01-29-2019 , 09:26 Re: Use iptables to redirect players to new IP

Not sure the "-d 1.1.1.1" argument is necessary, try it without that.

Maxximou5 · 01-29-2019 , 13:22 Re: Use iptables to redirect players to new IP

If that doesn't work you may also need to do the same for the client port.

Mitchell · *Last edited by Mitchell; 01-29-2019 at 13:33.*

Why though? This is why the tokens are made so you can migrate servers to a different IP/Port.
But guessing that you're trying to do the complicated route that means you probably run weapon skins etc and don't have stable tokens.

Neuro Toxin · 01-29-2019 , 15:50 Re: Use iptables to redirect players to new IP

There has been no GSLT banwaves for the few months.

abdulsami34 · 02-01-2019 , 12:20 Re: Use iptables to redirect players to new IP

I'm also looking for a solution for this. It does not work.

@Mitchell, He might be doing it for some DDoS Attacks? I do it on my teamspeak3 it works great?

Mitchell · *Last edited by Mitchell; 02-01-2019 at 14:17.*

Quote:

Originally Posted by abdulsami34

@Mitchell, He might be doing it for some DDoS Attacks? I do it on my teamspeak3 it works great?

I get that iptables can be used for DDoS attacked, however his question was how to redirect players to a new IP. I'm sure if he wanted help how to redirect a DDoS attack he would have mentioned it instead.

Either which way I'd assume when you connect to the server you need to get a reply back from the server that contains the same IP (or metadata) you're trying to connect to.