When the Network and Sharing Center opens, click on the Windows Firewall link in the lower left hand corner. In order to create a template for the Windows Firewall we need to launch the Network and Sharing Center, the easiest way to do this is to right-click on the network icon and select Open Network and Sharing Center from the context menu.
By doing this, we have the extra advantage of being able to see if all the rules are set up and working as we want them to be, before deploying them to all the client machines. The easiest way to start controlling the Windows Firewall through Group Policy is to set up a reference PC and create the rules using Windows 7, we can then export that policy and import it into Group Policy. Given this information we decide to make use of the Windows Firewall and Group Policy. We have been given the task of making sure that users cant use Skype at work, however they are welcome to keep it installed on their laptops and use it at home or during lunch breaks on a 3G/4G connection. It has come to our attention that a lot of users have Skype installed on their machines and it is making them less productive. Here we will take you from start to finish on how to easily configure the Windows Firewall via Group Policy and as a bonus show you how to fix one of the biggest gotchas. The Windows Firewall can be one of the biggest nightmares for system administrators to configure, with the addition of Group Policy precedence it just becomes a headache.
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