On Tue, Dec 15, 2009 at 6:33 AM, Geoff Sweet <geoff.sw...@wemadeusa.com>
wrote:
> We are in the midst of migrating all our firewalls to 4.6.  However I have
a
> now-recurring issue on one of my last 4.5 (amd64) firewalls that I'm having
a
> hard time understanding.  It's happening right now so if there is something
I
> can do in this state to show what's going on, i'd like to do it.
>
> Current this firewall performs duty for inbound customer traffic for some
game
> clients (mmo style) and for firewall enforcement between various vlans on
the
> inside.  The first time this happened I thought it was just a fluke.
 Current
> state of the system: The system won't let me log in via ssh.  I can make a
tcp
> connection via telnet so I know that at least something is listening on the
> port, but nothing I try will get the system to prompt me for authentication
> credentials. No love on the terminal either.  Because our datacenter uses
KVM
> and the keyboard switches via USB, it won't detect the keyboard being
plugged
> in.  However I can get video and it was left logged in with top running,
and
> it appears to be frozen.
>
> Just like the previous time the event was preceeded by increased complaints
> from our customers that game lag was very high.  I know this all seems very
> vague, but I am totally frustrated here.  We don't move a lot of traffic,
> 40mbps at the most.  It still continues to firewall traffic without too
much
> issue.  Last time this happened, when I rebooted I couldn't find anything
in
> the logs to suggest an error of any type.  Could I be running out of
resources
> somewhere?
>
> Thanks for your insight,
> Geoff Sweet
>
>

I had this happen when I accidentally set up a compile box with 1mb of
swap (instead of 1gb) on 32mb of RAM and a Pentium 200.  I was trying
to compile Java.  Once I got it going it took 9 days to finish
end-to-end.

But, back on topic.  What's the config of this firewall?  CPU, RAM,
HDD, swap?  This smells of a OOM condition.

--
Aaron Mason - Programmer, open source addict
I've taken my software vows - for beta or for worse

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