Apache

Great tips on protecting file uploads via PHP, discusses MIME server-side validation, as well file handling with suhosin and mod_security. Some info, is basic, but it covers more advanced topics like chroot and partition permissions.

Article on how to configure either mod_cband or mod_bw to control bandwidth usage. Article addresses specific problem of MP3 downloads consuming too much bandwidth.

One of the best howtos I've seen on htaccess. That thing is a nightmare!

Apache's mod_rewrite module is a very powerful tool. And there's some neat tricks you can do with it. This trick involves forcing visitors and search engine robots to either the WWW version of your website, www.yourdomain.com, or the non-WWW version of your website, yourdomain.com.

If you own a website, then understanding .htaccess is important. This is a good guide to understanding .htaccess

A nice faq of modssl. Has instructions on creating dummy ssl certs for testing.

Although the concept of a mobile phone web server has no intended use yet, this step by step guide demonstrates the capability of Apache Httpd, and 3G/GPRS technology to run a mobile web server.