fix-wsl.ps1

 $remoteport = bash.exe -c "ip a | grep 'inet '"

$found = $remoteport -match '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';

if( $found ){
  $remoteport=$remoteport.Split("inet");
  foreach ($rp in $remoteport) {
	if ($rp -match '172.\d{1,3}\.\d{1,3}\.\d{1,3}') {
		$remoteport=$rp;
		$remoteport=$remoteport.Split("/");
		$remoteport=$remoteport[0].Trim();
		break;
	}
  }
  $remoteport;
} else{
  echo "The Script Exited, the ip address of WSL 2 cannot be found";
  exit;
}
if ($remoteport -notmatch '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}') {
	echo "The Script Exited, the ip address of WSL 2 cannot be found";
	exit;
}

#[Ports]

#All the ports you want to forward separated by coma
$ports=@(80,87,8081,8080,5432,1111,9000);


#[Static ip]
#You can change the addr to your ip config to listen to a specific address
$addr='0.0.0.0';
$ports_a = $ports -join ",";


#Remove Firewall Exception Rules
iex "Remove-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' ";

#adding Exception Rules for inbound and outbound Rules
iex "New-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' -Direction Outbound -LocalPort $ports_a -Action Allow -Protocol TCP";
iex "New-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' -Direction Inbound -LocalPort $ports_a -Action Allow -Protocol TCP";

for( $i = 0; $i -lt $ports.length; $i++ ){
  $port = $ports[$i];
  iex "netsh interface portproxy delete v4tov4 listenport=$port listenaddress=$addr";
  iex "netsh interface portproxy add v4tov4 listenport=$port listenaddress=$addr connectport=$port connectaddress=$remoteport";
}

$host_names='ubuntu.wsl.com';
$file    = "$env:SystemRoot\system32\drivers\etc\hosts"
$string2  = $remoteport+' '+$host_names;
$pattern = "\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3} "+$host_names;

$file_c=[System.IO.File]::ReadAllText($file).Trim();
if ($file_c -notmatch $pattern) {
	Add-Content -Path $file -Value ('
	'+$string2);
}else {
	if ($file_c -notmatch $string2) {
		$file_c=$file_c -replace $pattern,$string2;
		Set-Content $file $file_c;
	}	
}