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Creating Windows Firewall Rules

You can create new inbound or outbound rules as needed. The New Inbound (or Outbound) Rule Wizard walks you through the steps of creating your new rule. Follow these steps:

1. Select the Inbound Rules or Outbound Rules node in the Windows Firewall with Advanced Security snap-in.

2. In the Actions pane, click New Rule. The New Rule Wizard (Inbound or Outbound) opens.

3. On the first wizard page, select the rule type: Program, Port, Predefined, or Custom. (These rule types were discussed in the previous section; select Custom for sake of discussion.) Click Next.

4. Depending on the rule type you selected, you need to specify the program (by executable) or the port (you must specify TCP or UDP as the transport protocol and then the actual port numbers) or the predefined service (for a predefined rule). For sake of discussion, let’s look at a custom rule, which requires that you specify a number of these settings.

Specify the programs for the rule (you can specify all programs) by providing the path for the program (see Figure 21.6). You can also use the Customize button to specify the services that are to be associated with the rule. Click Next.

Figure 21.6. Specify the program for the rule.

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5. On the next wizard page, use the Protocol drop-down list to specify the protocol associated with the rule. You can set local port and remote port numbers as needed. Then click Next.

6. On the next wizard page, you can specify a specific scope of local and remote IP addresses for the rule (the default is any local IP addresses and any remote IP addresses). Click the These IP Addresses option for local or remote IP address ranges, and then use the Add button to specify the range (by subnet) of IP addresses. Then click Next.

7. On the next wizard page, you specify the action that will be taken when a connection matches the rule’s conditions. The actions are Allow the Connection, Allow the Connection If It Is Secure, and Block the Connection. After setting the action, click Next.

8. On the next wizard page, you specify the profile or profiles that are associated with the rule (see Figure 21.7). Use the check boxes as needed to associate the rule with a profile or profiles (Domain, Private, and/or Public). Then click Next.

Figure 21.7. Specify the profile or profiles for the rule.

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9. On the last wizard page, supply a name and an optional description for the rule. You can then click Finish.

The new rule is created and placed in the rule list (either inbound or outbound). You can edit the properties for the rule by double-clicking the rule in the Details pane.

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