Application Development
4D
4D Server
4D Components

Database Design and Administration
4D
MySQL

Website Design
XHTML
CSS
Javascript

Web Application Development
Apache
Perl
MySQL
Javascript
4D Server
Active4D
PHP

System Administration
Macintosh
Macintosh OS X Server
Windows
Windows Server
FreeBSD

Network Design
Ethernet
Wireless
Routing

Security
Backup and Recovery
Virus Protection
Firewall and Web Proxy Servers
Wireless Networking