Perl
Popular Extraction and Report Language. A language for programming
CGI applications.
PHP
PHP is a server-side, cross-platform, HTML
embedded scripting language. If you are completely new to PHP
and want to get some idea of how it works, have a look at www.php.net.
Ping
A network tool that checks to see whether you can communicate
with another computer on the Internet by sending a short message
to other computer.
POP3
Post Office Protocol 3. A protocol used so email
programs can deliver emails to and from the server.