Abstract :
We briefly cover six popular firewalls and combinations thereof. The pros and cons of these various firewall technologies with examples and more in depth explanations are provided: 1. Application-based firewalls; 2. Packet filtering; 3. Stateful-inspection; 4. Proxy; 5. Network address translation; and 6. Virtual private networks
Keywords :
authorisation; computer networks; application-based firewall; firewalls; network address translation; packet filtering; proxy; stateful inspection; virtual private network; Data security; Filtering; Filters; Inductors; Network address translation; Network servers; Protection; Software packages; TCPIP; Web server;
