Freelancer. Provide the support via remote access , if required send the executive for on site support (price will vary). Expertise in RedHat, CentOS, Windows Server, Exchange Server 2013, Virtualization, Azure (Basic Concept of installation servers with networking,storage,including AD/Exchange) Cyberoam Firewall, Wireless, DNS, DHCP, FTP, SSH, Squid Proxy, SFTP. etc