While if you want to open a port for both sending and receiving, you need to repeat the process as an Outbound rule. Once all is done, now immediately after creating this rule, the firewall rule will allow traffic to (or from) your server. You need to open the TCP port 20002 on the publishing agents server using the following command.

Then you have to run the Windows PowerShell as Administrator.

First of all, using an admin account you have to Log in.

For the Publishing Agents role on the servers, open the TCP port 20002 with the following command.

Then you have to open and run the Command Prompt as Administrator.

First of all, using an administrator account you have to login to the server.

After that, now you have to enter a “ Name” for this rule under the Name section, and then click on the “ Finish” button when you are done.

(NOTE: Here at this point if you wish to limit the connection to a particular profile then you can simply select the profiles that are appropriate to your setup.)

Now under the Profile section, you have to select all three options and click on the “ Next” button.

Next, you have to head to the Action section in which you have to select “ Allow the Connection“ and then you have to click on the “ Next” button.

After that, you have to type “ 20002” in the “ Specific local ports” input field.

Then under the Protocol and Ports section, you have to select the “ TCP” as the type of protocol.

Now under the Rule Type section, you have to select “ Port” and then click on the “ Next” button.

Suppose for example the servers with Parallels RAS Publishing Agents will need to open TCP port 20002.

Now here you will get five steps to open a port and accept incoming connections:.

Then click on the New Rule on the Right of the MMC.

Now you have to click on the Inbound Rules on the left of the MMC.

Start > Administrative Tools > Windows Firewall with Advanced Security

Here first of all you have to log in using an admin account.

So, you can open ports on Windows Server by following the instructions in the following article. In Windows Server 2008/2012 R2/2016 and Windows Server 2019, there are three ways to open ports.

Open Ports through command line (netsh).

Open port not confirmed