MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

15-52 Chapter 15 Configuring Network and Internet Connections
5. In the Programs And Services list, select the check box for the service you want to
allow. If you need to add an exception for an installed program that does not
appear on the list, click Add Program to locate the executable file for the program,
and then enable the exception after the program is added to the list.
6. Click OK to close the Windows Firewall dialog box.
How to Create an Exception for a Particular Port
If Windows Firewall does not include an exception for the traffic you need to allow,
and adding an executable file to the list does not produce the results you need, you
can also create an exception by unblocking traffic for a particular port.
To create a global exception for a port that applies to all network connections for
which Windows Firewall is enabled, use these steps.
1. Click Start, and then click Control Panel.
2. In the Control Panel window, click Network And Internet Connections.
3. In the Network And Internet Connections window, click Windows Firewall.
4. In the Windows Firewall dialog box, on the Exceptions tab, click Add Port.
Windows displays the Add A Port dialog box. To create an exception based on a
Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) port number,
you must know the proper port number used by an application or service to
use this option.
5. Type a name for the exception, type the port number you want to allow access
for, and then select whether the port is a TCP or UDP port.
You can also change the scope to which the exception applies. Your options are
to have the exception apply to any computer (including computers on the Internet),
the local network only, or a custom list of IP addresses.
6. To change the scope of the exception, click Change Scope to open the Change
Scope dialog box, where you can configure the scope options. Click OK to return
to the Add A Port dialog box.
7. Click OK again to add the exception and return to the Windows Firewall dialog
box.
After you have added the exception, it appears in the Programs And Services list
on the Exceptions tab of the Windows Firewall dialog box.
8. Select the check box for the exception to enable it.
9. Click OK to close the Windows Firewall dialog box.