Antivirus, Best Practices, CCNA - Cisco Certified Network Associate, CISSP - Certified Information Systems Security Professional, Cisco Network Systems, CompTIA Security+, Customer Relations, Enterprise Protection, Firewalls, GSEC - GIAC Security Essentials Certification, Industry Standards, Information Systems Security Engineering (ISSE), Internet Security, Intrusion Prevention Systems, Linux Operating System, Microsoft Windows Operating System, NMap, Nessus, Network Administration/Management, Network Architecture/Engineering, Network Management Software, Network Operations Center, Office Equipment, People Management, Perl Programming Language, Presentation/Verbal Skills, SSCP - Systems Security Certified Practitioner, Scripting (Scripting Languages), Server Support, Sustainability, United States Department of Defense (DoD), Unix Shell Programming, XML (EXtensible Markup Language), tcpdump