Network Probs (was Re: Firewall issues) 2003-06-11 - By Trey Gruel
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> I see hits on other random ports (80, 1080, 1433, etc..) that are
> supposed to make it to the logdrop chain, but nothing shows up for the
> ports I'm allowing. Any time I try to ssh, ftp, or ping the box from
> the outside world, I can see the count go up for the correct rule.
>
> I have also tried flushing the INPUT chain and setting the policy to
> ACCEPT, but I'm still not getting any responses to requests from the
> outside world.. Very confused..
After a week of not getting to touch the box, I've run a few more
tests.. It turns out it's not a firewall related problem at all. I
booted up the machine with iptables off to be sure the modules weren't
loaded. After about 6 hours, all communication with the outside via
eth0 ceased. The ssh session I had open reported 'connection reset by
peer' and dropped. I was able to continue sending and receiving via
eth1 (both cards are intel ethernet pro 100s). As I said before, after
this problem occurs, the computer still sees the traffic (as shown by
iptables -vL), but no longer acts upon it.
Any speculation?
--
Trey Gruel
tgruel@(protected)
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