NOTE: at work I installed a web proxy to separate internal user traffic from external traffic hitting our production servers.  While I’m not part of the network team, they asked me to do this because of my prior experience and interest in such things.  The idea of this was to be a temporary fix until [...]

When you run a webserver behind a reverse proxy or HTTP accelerator like Squid or Varnish, the webserver access logs will display the IP of the proxy (generally 127.0.0.1) instead of the end user’s IP.  This not only breaks any kind of tracking or reporting you want to run against your webserver logs, but it [...]