Limiting Port
Michael Powell
nightrecon at hotmail.com
Mon Feb 22 19:18:52 UTC 2010
Alex Terente wrote:
> Hi,
>
> I have a problem with my FreeBSD system, i have installed a gameserver on
> it and after a period of time, the port 11002 (login port) is closed. What
> i can do to resolve this?
>
Two things spring to mind at first, possibly a way to get started. First,
establish that it is not the game server relinquishing the port. This is
unlikely but it ought to get eliminated from consideration. sockstat -4l
will tell you what is listening to which ports. Next time it gets "closed"
take a quick look at this and ensure the game server is actually still
listening to this port. If it is not it is most likely a configuration
detail relevant to the game server.
Second, this sounds a lot like a NAT session timing out from inactivity. If
such a situation should be the case it is possible to design a rule specific
so the ports' traffic can bypass NAT and run "straight-through". If the
first thingy from above gets eliminated this is where I'd look next. As to
exactly how you would go about tailoring such a rule would depend upon the
syntax of whichever firewall you are using.
-Mike
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