Firewalls help protect computers by screening out hackers, viruses, and worms that try to reach computers. It is important to review firewall issues for Computer Security.

Firewalls control incoming and outgoing network traffic. They establish barriers between the trusted, secure internal network and another network that is assumed to be not secure. Firewalls act by blocking all the ports on a computer. A port is simply a channel of communication that computers can use, and there are thousands of them available.

Windows Firewall

Below are general guidelines for turning the Windows Firewall on/off.

  1. On the Server, go to the Control Panel.
  2. At the very bottom, click on Windows Defender Firewall.
  3. On the left, click Turn Windows Defender Firewall on or off.

There are two kinds of firewalls: