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Brad's TechTips - Windows

[<< Full list of Windows tips.]
 
 
Windows Firewall: How to Open a Port on a Remote Computer
 
To create/open a port exception on a remote Windows Firewall, such as the alternate HTTP port using TCP port 8080 (we'll name it "AltHTTP"), do the following:
  1. Open RegEdit on the PC to which you're logged on.
     
  2. From File > Connect Network Registry, select the computer whose firewall you need to adjust. (You must have administrative rights on the remote computer.)
     
  3. Navigate to the following key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
    SharedAccess\Parameters\FirewallPolicy\DomainProfile\
    GloballyOpenPorts\List

     
  4. Create a new string (REG_SZ) value. Name it 8080:TCP
     
  5. Give it the following value: 8080:TCP:*:Enabled:AltHTTP
     
  6. Close RegEdit.
 

Note: The asterisk in line 5 indicates that the service will be open to all networks and will not be restricted to a specific subnet.