Configuring Windows Firewall Options
Before we can start talking about firewall options, you must first understand what a firewall does. A firewall is a software or hardware device that checks the information that is received from an outside (Internet) or external network and determines from that information whether the packet is accepted or declined.
Depending on the firewall, you have the ability to check all potential remote users against Active Directory to verify that the remote user has an authorized domain account. This process is called Active Directory account integration.
Microsoft Windows Server 2008 R2 has a built-in firewall. The following are some of the configuration options included in the Windows Firewall Settings dialog box: ...
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