Windows Server 2003/2008/2012 having experience of configuring Active Directory,Microsoft Exchange Server,DNS,DHCP,TMG,Antivirus Server. Network Cisco ASA 55xx series Cisco Routers 18xx,26xx,28xx,36xx,38xx Cisco Catalyst 4500 Series Cisco Switches 19xx,29xx,35xx Barracuda Firewalls HP Switches 35xx Cisco Catalyst 4500 Series