Open Ports in Windows Firewall

The choice of firewall technology implemented in an organization will vary, but to illustrate a configuration the follow-ing section shows how the administrator can configure the built in firewall supplied.

Although simplified, the principles demonstrated in this section apply to all firewall vendors.

Type Firewall in the search field on the PC and select Windows Defender Firewall from the returned results.

Note:
In some cases the Firewall configuration can be can be controlled by a Group Policy on the network Domain Controller. In this case the administrator can configure the firewall settings centrally on the domain controller.

Click the Advanced settings link.

Click Inbound Rules or Outbound rules to create or modify a rule.

Important:
The administrator must repeat the process to add an open port to any satellite daemons on other machines in the network to establish a clear two way communication without being blocked by the firewall.