XAMPP is a very easy to install Apache
distribution for Linux, Solaris, Windows, and Mac
OS X. The package includes the Apache Web server,
MySQL, PHP, Perl, an FTP server, and phpMyAdmin.
Great software! Easy to use. A daemon, some command line tools, two configuration files. Excellent documentation (incl. man pages).
The classic UNIX way: small and beautiful.
And it works and is really fast. :)
A tool for securing DNS communications between a client and a DNS resolver.
A polyhedral extraction tool (PET).