Configure sendmail to accept emails only if “from”, “to” or specific field matches

you can exclude an email address or even a host that is spamming you using the access file located in your etc directory, the bad news is that it does not support regex or even wildcards.

Dynamic Content Caching using Lighty + mod_magnet + lua

*Updated 11 Jan 2007 to include luazlib, fix lighty config file and add zlib decoding to cache.lua for older browsers
Since I read the documentations for mod_cml, I was very excited to use this module since caching using PHP running as FastCGI is not helping much during server peak load. However, mod_cml was replaced by mod_magnet which is more flexible and gives more control over request handling in Lighttpd. This Article will focus on caching your PHP scripts using Lua and mod_magnet under Lighttpd,

XUL : open URL with a referrer

This is a small function to use in Firefox extension development which makes use of the referrer parameter sent to loadURI() and addTab() functions