HTML, HTML5, CSS, CSS3, XML, DHTML, JavaScript, AngularJS, React JS, JQuery, JSON, and Node.js; 2. Web Server Administration and configuration, including Netscape and MS IIS; 3. Unix System Administration and configuration, including Sun, HP, and AIX; 4. MS Windows NT System Administration, Firewall Administration, including Checkpoint, Raptor, and Gauntlet; 5. Shell Scripting, Perl, Java, Proxy Services, MS Site Server, Active Server Pages, ActiveX, JavaScript, VBScript, TCP, IP, SNA, and IPX; and.