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this post was submitted on 27 Mar 2024
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I can't recall if
ufwopens both TCP and UDP or just TCP by default.Try explicitly allowing 51820/udp with
ufw allow 51820/udpI've added the firewall rule and it still says
no port[s] to connect towhenever I runecho "Testing" | nc -u SERVER_IP -p 51820. I feel like you're trying to stay on a sinking ship, so I would suggest to try another method to see if we even can get the whole "bypass CGNAT with a VPS" thing to work at all.Update: I've tried setting up SSH tunneling instead and it STILL doesn't work. I contacted Hetzner support about this issue and I'm hoping that they can resolve the firewall issues that I'm having.