Please help me open port 8303?

English Network/Internet
1

I am trying to run a Teeworlds (game) server and am getting the following message;
ERROR: configure your firewall/nat to let through udp onport 8303.
I have my router setup right (I successfully tested the game server on MS Windows using same port).
I have also tried shutting off my OpenSuse 11.1 firewall using Yast but the error still occurs.
All help would be much appreciated.

Michael

2

adding a port in the firewall is easy

see this thread
A Quick Bittorrent Guide (with screenshots) - openSUSE Forums

Now open Yast - Security and Users and go to Firewall
Yast Security and Users
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Then to Allowed services
Yast Firewall go to Allowed Services
http://img111.imageshack.us/img111/5…rewall3mj9.jpg

Then the Advanced button. Brings a box. Here add the port numbers you selected for use in ktorrent or Vuze and wrote down!
Allowed Services – Advanced
http://img111.imageshack.us/img111/5…rewall4wq9.jpg

But if you switched the Firewall Off - then you must have something wrong elsewhere.

3

Suppose your router is at address 192.168.1.1 (for example). Set your PC to have a fixed IP address on the same subnet as the router, e.g. 192.168.1.10. Browse to your router at http address htt p//192.168.1.1 and edit the settings there to “port forward” UDP port 8303 to the address of your computer (e.g. 192.168.1.10). Then open port UDP 8303 in Suse’s firewall ==> goto Yast → security and users → firewall → allowed services → advanced → udp → enter 8303

Try that

4

@caf4926 – two minds in synchronous thought :wink:

5

Thanks for your assistance, with your input I think I know where I have gone wrong. The router port forward is set up for my laptop at another ip address.
Unfortunately I now have another problem, in that I am unable to launch executable files in terminal. So now I can’t even launch the server. I must have altered something in my firewall & security settings while trying to overcome the port forwarding problem. I will meddle some more to attempt to resolve this issue (hopefully without ruining other critical part of my installation).

Thanks once more.
Kind Regards
Michael

6

I have no idea why, but I have discovered that I can execute files if I put ./ in front of the command.
That aside the server is now working.
Cheers for the help.
Kind Regards
Michael

7

./ is shorthand for “look for the executable in the current directory”

8

Thanks swerdna.

9

caf4926 wrote:

> But if you switched the Firewall Off - then you must have something
> wrong elsewhere.

If you switch off SuSE-Firewall, you switch off port-forwarding as well.

–
RU,
Tobias.

10

Port forwarding is performed in the router which routes the comms to the IP of the Susebox. Then to get through SuSEfirewall2 you either open the appropriate port/s in SuSEfirewall2 or switch SuSEfirewall2 off.