In this article, we shall outline the steps required to build a private Content Delivery or Distribution Network (CDN) using Varnish Cache, Nginx, BIND, and GeoIP. The goal is to build a CDN using free, readily available software but most importantly spend the least amount of funds possible.
Depending on which version of Varnish you have running, there is a chance the code is still experimental and the whole Varnish daemon is prone to a fatal crash. Here is a quick and dirty monitoring script for Varnish. It essentially runs as a crontab job and requests a PING response. Should it not receive [...]
Varnish is an excellent Web accelerator that can be made to proxy requests in and out of a cluster of somewhat more fully fledged Web servers like Apache or Litespeed. It has some great features like its compiled language, called VCL, and C-like programming API. Large vBulletin deployments tend to be heavy on CPU and [...]
