Best Practices, Business Support, CentOS, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Disaster Recovery, Enterprise Applications, Firewalls, Linux Administration, Linux Operating System, Maintain Compliance, Microsoft Active Directory, Microsoft IIS Web Server (Internet Information Services), Microsoft Windows Operating System, Microsoft Windows Server, Microsoft Windows System Administration, Operating Systems, Performance Analysis, Red Hat Linux Operating System, Regulatory Compliance, Sales Management, Server Support, Software Patches, Systems Administration/Management, Systems Engineering, Systems Maintenance, TCP/IP (Transmission Control Protocol/Internet Protocol), Ubuntu, VMWare ESX/ESXi, VMWare vCenter, VMWare vSphere