How to open a firewall port in Windows using Power Shell

You can refer to the guide here.

The command to open port 80 is:

netsh advfirewall firewall add rule name="Open Port 80" dir=in action=allow protocol=TCP localport=80

You need to specify:

• name for the rule
• direction
• whether to allow the connection
• protocol used
• port number

You can use this command from the Powershell level.

If you absolutely must use Powershell, you can use something like the script below(for the port 80 as well):

#==============================================================
# Creates a rule to open an incomming port in the firewall.
#==============================================================

#$numberAsString = read-host "type an port number"
#$mynumber = [int]$numberAsString


$port1 = New-Object -ComObject HNetCfg.FWOpenPort

$port1.Port = 80

$port1.Name = 'MyTestPort' # name of Port

$port1.Enabled = $true

$fwMgr = New-Object -ComObject HNetCfg.FwMgr

$profiledomain=$fwMgr.LocalPolicy.GetProfileByType(0)

$profiledomain.GloballyOpenPorts.Add($port1)

Taken from here.