Eric,
Is it still a DoS attack, when I can get someone to run "top" find
the PID and kill that single process to restore connectivity?
Cheers
-----Original Message-----
From: Eric Shubert [mailto:[email protected]]
Sent: Thursday, 13 January 2011 9:55 AM
To: [email protected]
Subject: [qmailtoaster] Re: Apache issues
On 01/12/2011 03:16 PM, Mike Canty wrote:
> To all,
>
> I have a server that is having some problems with some "apache"
> services.The machine appears to have a runaway process that takes up
> just over 20% of the CPU, but this is enough to stop all mail and to a
> certain extent network as well.
>
> The problem for me is this machine is at a remote site. When this
> process runs away, I cannot connect to the network remotely, to resolve
> the issue, I need to get someone internally to log on to the server
> itself and kill the process.
>
> When I say "Apache", that is the user listed against the process, so it
> must be some form of web service.The command at fault is either "std" or
> "s", although I have seen a "perl" command giving issues as well, but
> not to the same effect.
>
> Does anyone have any idea what may be causing this?Or what I can do to
> rectify?
>
> Cheers
>
> Mike Canty
>
From what you've said, it sounds a little like a DoS attack. It sounds
as though the problem process is saturating the network.
What sort of firewall, internal to QMT as well as external, is involved?
--
-Eric 'shubes'
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