Importance of Firewalls

A firewall is a network protection system that has been pre programmed with a set of rules that control traffic that comes in and out of the network. This security system can be hardware or software and it acts as a roadblock between a trusted network and one that is not trusted. The firewall has a set policy to allow certain types of traffic while restricting any other type of traffic that is not defined in the policy. Basically a firewall acts as a filter between your computer or a…