Configure programs and ports in Windows Firewall

Configure programs and ports:

Common sense applies to opening ports: Open one only when you really need it, never unblock a program that you don’t recognize, and close a port when you no longer need it. But sometimes you’ll change your mind about a program or will be tricked into unblocking a hostile program named to fool you. Windows Firewall lets you create exceptions for these programs and manage them manually.

Configuration:

1. Open Windows Firewall.

2. Click Allow a Program through Windows Firewall. If a security prompt appears, type an administrator password or confirm the action.

3. On the Exceptions tab of the Windows Firewall Settings dialog box, do any of the following:

• To open or close ports for specific programs, check or uncheck the boxes.
• To add a program, click Add Program; then select it in the list or browse to it.
• To delete a program, select it in the list; then click Delete. (You can’t delete the preconfigured programs.)
• To open an individual port by number, click Add Port; then type the port name (any name) and number, and select a protocol. (Windows assumes that you’re geeky enough to know the port number and protocol or that you read it in the program’s documentation.).If you’re adding a program or port, you can click Change Scope to change the set of computers that can use this port.

4. Click OK in each open dialog box.

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