Network Security Troubleshooting Computer Networking Computer Hardware Technical Support Virtual Private Network VPN Network Engineering Switches Servers Internet Protocol IP Wide Area Network WAN Local Area Network LAN Cyberoam LANWAN Network Infrastructure                                                                          St. Thomas'​ College, Matara.     Network Engineer Whale Cloud Information Technology Executive CDEM Hospital IT Support Assistant Commercial Development Company PLC Information Technology Assistant  Hector Kobbekaduwa Agrarian Research and Training Institute