[ubuntu-uk] OT: Debian apache2 problem
jakebunce at googlemail.com
Fri Sep 12 18:40:11 BST 2008
Are you using static NAT, i.e 1-1, 18.104.22.168 - 10.10.10.1 or whatever
your internal IP is and can it handle the amount of translations its
performing? Also if you're behind a shared firewall, can it handle the
amount of traffic passing through it? Check your firewall/iptables logs
where connections are initialized, but not followed through - TCP SYN
messages from different hosts but no SYN/ACK - SYN. Could indicate a DDoS
attack. I had no trouble viewing your site though.
2008/9/12 Johnathon Tinsley <kirrus at kirrus.co.uk>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> Hello all,
> Slightly off topic.. I'm working on a debian server, which is currently
> hosting my blog: kirrus.co.uk
> Unfortunately, something appears to be screwy with apache2 or something
> - - connections aren't being closed, and are just backing up.
> You can see this in action, if you visit the blog. Sometimes it just
> doesn't hand you all the data, and firefox sits waiting for data from
> Apache just spawns server processes, till the RAM runs out. Then the
> kernel starts killing processes and it doesn't appear to kill the
> logical choice of apache2.
> I've tried pinging one of the other servers in the network, to see if
> its obviously a network problem. Out of over 20,000 pings, only 4
> weren't replied to. Is there any better way to check the network
> Anyone have any other ideas of things to try?
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.6 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
> -----END PGP SIGNATURE-----
> ubuntu-uk at lists.ubuntu.com
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the ubuntu-uk