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. 1 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 [...]
For my podcast project I got five new root servers which are all connected internally through a switch. Two of the servers are connected directly over a crossover cable. Those two servers have 3 NICs, the other 2 servers have 2 NICs. I share the website’s HTML, images and other resources through the NFS server [...]
I heard about the successful usage of ejabberd from weblin‘s CTO Heiner yesterday at lunch during BarCamp Hamburg 08. I was thinking of deploying jabber services for podcast.de for a while now but couldn’t decide which server to take. I checked the ejabberd website. The software looks promising. So I give it a try. smart [...]
For our main web project we struggle to serve the pages as fast as we want and as people aspect. Server load is too high most of the time. We did many different kinds of optimization. Starting with rewriting part of the code, squeezing the database, compiling the software we need instead of installing precompiled [...]