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dmesg shows a large number of ip_conntrack: table full, dropping packet.
Modify / proc/sys/net/ipv4/netfilter/ip_conntrack_max configuration
echo 6553600> / proc/sys/net/ipv4/netfilter/ip_conntrack_max

vi / etc / sysctl.conf
net.ipv4.ip_conntrack_max = 6553600
net.ipv4.netfilter.ip_conntrack_max = 6553600

Eaccelerator

June 13th, 2010

FROM http://www.debianhelp.co.uk/eaccelerator.htm

eAccelerator configuration in Debian

What is eAccelerator?

eAccelerator is a further development from mmcache PHP Accelerator & Encoder. It increases performance of PHP scripts by caching them in compiled state, so that the overhead of compiling is almost completely eliminated. Read the rest of this entry »

Tweak sysctl

June 12th, 2010

Tweak

Optimize Apache for WordPress
http://thethemefoundry.com/blog/optimize-apache-wordpress/

by Drew Strojny on January 7, 2009 in Tutorials

If you made the decision to move your WordPress install from shared hosting to a shiny new VPS you should consider optimizing Apache by making some tweaks to your httpd.conf file. Apache is a fast, reliable, and flexible server but is heavy on resources by default. If you are running a small VPS, and using it just for WordPress, you can make some small tweaks to your configuration and get some significant performance gains.

Trim Down Those Modules Read the rest of this entry »