Linux Showroom

If your Varnish powered server is under constant load and you are wondering who causes that varnishlog is a helpful tool.

Start off by logging IP addresses for a while.

varnishlog -c -i RxHeader -I X-Forwarded-For > varnish.log

After you have collected enough information use the following line to find out which IP caused the most …

A while back I wrote an article Switching from Apache HTTP Server to Lighttpd – Installing Lighttpd. Back then I migrated static stuff to lighttpd but left the dynamic stuff (PHP) with Apache.

I was never really satisfied with the speed of our system under load. I tried and tried. I optimized a lot of …