3rd Level Support, Access Control, Authentication, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Defense Information Systems Agency (DISA), Engineering, Information/Data Security (InfoSec), Interoperability, LDAP (Lightweight Directory Access Protocol), Linux Administration, Linux Operating System, Microsoft Windows Operating System, Network Configuration Management, Operating Systems, Oracle, Problem Solving Skills, Process Development, Red Hat Linux Operating System, SMTP (Simple Mail Transfer Protocol), Scripting (Scripting Languages), Security Clearance, Sensitive Compartmented Information (SCI), Software Configuration Management, Software Engineering, Software Patches, Systems Administration/Management, Systems Engineering, Systems Maintenance, Technical/Engineering Design, Testing, Top Secret Clearance, United States Citizen, Unix Operating Systems, Virtual Machine (VM), Web Server