Adjust networking devices ( Switches, Routers), Gateways ( Firewall , UTM ) and computer next generation anti viruses to secure (Internal networking, LAN, DMZ, VPN, WAN) and computers from computer threats to achieve the below points: 1) Solve existing security issues, such as viruses. 2) Maintaining virtual private networks, firewalls. 3) Create and maintain security policies. 4) Maintaining network devices to mitigate network outage.