Sut i ychwanegu, tynnu a gweld rheolau firewall mewn Ffenestri Powershell?
Ychwanegu rheol wal dân
New-NetFirewallRule -Name sshd -DisplayName 'OpenSSH Server (sshd)' -Enabled True -Direction Inbound -Protocol TCP -Action Allow -LocalPort 22
Gweld rheol wal dân
Get-NetFirewallRule -Enw sshd
Dileu rheol wal dân
Remove-NetFirewallRule -Name sshd
