Firewall is responsible for restricting the traffic a computer can send and receive over the Internet. By creating a strict, locked-down firewall policy, user can easily manage the exact traffic allowed on their network. Further, you can enhance the security of your LAN by having a strict firewall security policy, which will allow you to manage the data that reaches network.









When you try to connect to a website, the computer will connect to the DNS server and retrieve the IP address for the entered website. If DNS lookup is disabled on your firewall, it will not be possible to connect to Web addresses and surf the Internet.



