Abstract:
Computer network security is a great convenience for users. Network security problem
generally includes network system security and data security. Specifically, it refers to the
reliability of network system, confidentiality, integrity and availability of data
information in the system. This project Title “Improving Computer Network Security” is
a communication system head office and branch office. Firewall, Access Control list
(ACL) and Virtual Private Network (VPN) are the most popular network security
method. SSH has also been configured to enter the router remotely. For this project more
secure & realistic we use Network Address Translation (NAT) and Port Address
Translation (PAT).
