The purpose of a firewall is to drop unwanted traffic, such as traffic from worms, while allowing legitimate traffic, such as authorized file sharing. In the case of worms, automated software attacks computers across the Internet, gains elevated privileges, copies itself to the compromised computer, and then begins attacking other computers (typically at random). A successful compromise can crash a service or computer, compromise confidential data, or even allow the attacker to take complete control of the remote computer.

This is an important task, because connecting to the Internet means any of the millions of other Internet-connected computers can attack you. In networking, firewalls analyze communications and drop packets that haven’t been specifically allowed. Identify network communications used by a specific application so that you can create rules for the application.Įstimated lesson time: 45 minutes Why Firewalls Are Important Use Group Policy settings to configure firewall rules in an Active Directory domain environment.Įnable Windows Firewall logging so that you can isolate problems related to firewall rules. List the three firewall profiles and how each is used.Ĭreate a firewall rule to allow inbound traffic.Ĭreate a firewall rule to allow outbound traffic and enable outbound filtering.Ĭonfigure the scope of a firewall rule to limit communications to specific subnets.Ĭonfigure firewall rules to require IPsec connection security and, optionally, limit authorization to specific users and computers.

Windows firewall central management