I feel like this can be easily solved but im too dumb to get it so let me just fill you on with my problem, my server is behind a router which i have put a static IP for it and opened some ports for it.
Ive configured OpenVPN and done Samba Share. But whatever I do I can not ping my public IP and my Openvpn does not work at home, one dumb solution I found is to connect to some other vpn and then connect to openvpn from there, and that works like a charm.
I haven't tested it trying to connect from somewhere else becuase I was busy these past few weeks, at my school they filtered vpn's and I cant connect there.
I also have enabled UFW and I connect to my server with ssh using a certificate ID.
My only question is that why cant I ping or communicate to my server's public IP at my own house?
Best Answer
You're behind a Carrier-Grade NAT. ISPs do this to scale their services and avoid IP address exhaustion.
This makes it impossible(?) to host services on your end.