Apache webserver outage - need help with forensics

Shahzad Chohan shahzad.chohan at gmail.com
Thu Apr 14 15:06:10 UTC 2005


Could it be that demon blocked connections to the http port.

Shaz

On 4/14/05, Bob Brennan <rbrennan96 at gmail.com> wrote:
> > Bob Brennan wrote:
> > | I have a server which went completely unresponsive today on port 80
> > | for 20 minutes and would appreciate any pointers as to what might have
> > | happened.
> >
> > You don't say where or how the box is connected to the Internet... if
> > via a hosting / rackspace company then I think the first move would be a
> > polite email enquiring if they changed any of their routing,
> > firewalling, proxying, etc arrangements or settings at that time yesterday.
> 
> Hi Andy - my connection is through a static IP leased from Demon,
> which is a major ISP in the UK. It is ADSL through a Thompson router,
> the default inbound server is set to my server's internal IP. At the
> server I use Firestarter with only HTTP, HTTPS, FTP, SMTP, and POP3
> ports open. The setup has been working for a few months like that.
> 
> Curiously, and I can't believe this has anything to do with it, I had
> to put in a whitelist request that morning because my mailserver IP
> was being rejected as "residential". The whitelist change has not yet
> taken effect.
> 
> Unfortunately at the time it was down I was away from the machine and
> could only test it from 3 separate outside locations, all of which
> showed mail and ftp working as normal and http just plain not there.
> Strange...
> 
> bob
> 
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