I got solid hands-on experience in Administrating, troubleshooting various services in both Windows and Linux platform such as Active Directory, MAIL( Exchange server, sendmail, postfix), DNS, Proxy, File services, Web services ( IIS, Apache), databases ( SQL Server, Oracle, MySQL), VPN etc. Apart from that my networking expertise include implementing, troubleshooting in CISCO Routers, Switches, CISCO firewall etc.