NETWORK SECURITY Paper Presentation And Seminar Topics For IT and CSE

Firewall is a network element with multiple interfaces. As traffic moves through the firewall it is screened or inspected for specific characteristics that match the firewall policy. This policy specifies allowed traffic that can pass. Firewalls come in different flavors: the most important classification is in the way the firewall works - some operate on the network or packet level, whilst others operate on the application level. Most current approaches combine the best characteristics of both approaches.A firewall is mandatory for any connection with a potentially hostile network, such as the Internet or any semi-public network.You can use a firewall to enhance your site's security in a number of ways. The most straightforward use of a firewall is to create "internal site", one that is accessible only to computers within your own local area network. If this is what you want to do, then all you need to do is to place the server INSIDE the firewall: