Managing firewall rules on your servers and clients can be a huge step toward a more secure environment for your company. The best part? This technology is enterprise class, and free to use since it's already built into the OSes that you use. The only cost you have associated with firewalling at this level is the time it takes to put all of these rules into place, which would be an administrative nightmare if you had to implement your entire list of allows and blocks on every machine individually.
Thank goodness for Group Policy Object (GPO). As with most settings and functions inside the Microsoft Windows platform, setting up a firewall policy that applies to everyone is a breeze for your domain-joined machines. ...