Two weeks ago there was an article on Microsoft Technet about the new Windows Vista firewall which supports both incoming and outgoing traffic. I didnt’t have any time to write about it but now Ed Bott wrote an interesting article where he discusses some of the new features.
With one mouse click, as I’ve shown here, you can instantly block all outgoing connections except those you define as exceptions. That list of exceptions appears in the Windows Firewall with Advanced Security console. In a default installation, several dozen exceptions are defined but not enabled. After turning on the Block option for outbound connections, you can go through and enable the exceptions you want and define custom connections as well, with an excruciating level of detail.