I'd like to achieve Four things in Firewalld:
1. Add a rule that blocks all outgoing and incoming traffic on your Local Ethernet
Device.
2. Add an exception for your favorite DNS Server (to resolve the hostname of your VPN
provider)
3. Add an exception for your VPN provider’s IP addresses
4. Add an Rule for your tun/tap or any other VPN Device to allow all outgoing Traffic for
the VPN Tunnel.
Can someone tell me how?