Microsoft Windows Server 2003/2008,Active Directory Domain Services (AD-DS), Domain Name Server (DNS), Group Policies Objects (GPOs),TCP/IP, DHCP, Routing and Remote Access, VPN, Firewall, Routers and Switches (L1 & L2), ESXi Server 6.5, Workstation 12, Manage Networking LAN & WAN,Administration of Windows XP, 7, 8.1, 10,HTML5, CSS3, JavaScript, PHP, SEO.