On Wed, 18 Sep 2002 09:28:35 +1000 Jay wrote:

> > You should check the /var/log/messages file
> I have, they are all looking at port 53

Speculating since you didn't includes sample log entries...

You may have found (or been found by) a geographic load balancer
that uses port 53 requests for timing measurements.  If so, a
search for "dns floods" or "dns_floods" on leaf-user or the old
LRP list will probably turn up more information.  Not sure if
this is still accurate, but weather.com (or was it their x10.com
popup ads) triggered the load balancers once-upon-a-time.


> > It says: '146 denied or rejected packets'
> Yes. but the firewall weblet says error after only 146. I've done port scans
> before and got this to say 3200 before the weblet said error.

The thresholds are set in /etc/weblet.conf .  My Bering RC3
defaults are:

  WRN_FW=5
  ERR_FW=50


It seems you should see the error stats for anything more than
50 matches of "Shorewall:" in /var/log/syslog .  (syslog gets
rotated nightly so the error status will reset nightly.)
 

> > BTW, if you are portscanning the firewall from outside, this is normal!
> I wasn't at the time, if i do a external portscan, it lasts alot longer
> (usually around the 3000 mark) before going to error status..

My suspiscion is that the portscan was being done so quickly that
you went from near zero to 3000 very quickly and didn't realize
the threshold was 50 denied packets.  Please let us know if you
find evidence otherwise.

--Brad

 
> Confused..



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