I want to move away from Cloudflare tunnels, so I rented a cheap VPS from Hetzner and tried to follow this guide. Unfortunately, the WireGuard setup didn’t work. I’m trying to forward all traffic from the VPS to my homeserver and vice versa. Are there any other ways to solve this issue?
VPS Info:
OS: Debian 12
Architecture: ARM64 / aarch64
RAM: 4 GB
Traffic: 20 TB
At least that points you to the problem: firewall somewhere.
Try a different port with your netcat test, perhaps? 51820 is the well-known WG port. Can’t imagine they’d intentionally block it, but you never know.
Maybe Hetzner support can offer more guidance? Again, I’m not sure what or how they do network traffic before it gets to the VM. On all of mine, it’s just a raw gateway and up to me to handle all port blocking.
If you figure that part out and are still stuck on the WG part, just shoot me a reply.
I tried to open the port 22 on UDP (yeah, I am getting pretty desperate over here…) and still get the message
no port[s] to connect to… Someone else on this post commented that I should stop using iptables for opening ports and start using something else as a firewall. Should I try this approach?Yeah, might be worth a shot. iptables is nice, but very verbose and somewhat obtuse.
I’d just clear out iptables completely and use
ufw. Should be in Debian’s package manager.Here’s a cheat sheet: https://www.digitalocean.com/community/tutorials/ufw-essentials-common-firewall-rules-and-commands
What do you mean with “clear out iptables completely”? Should I remove the iptables package with
sudo apt remove iptables?I believe
iptables --flushshould clear out any entries you’ve made. You can also reboot and clear them (unless you’ve got scripts bound to your interface up/down config that adds rules).Basically just need to get any custom iptables rules you made out of there and then re-implement any FW rules with
ufwYou can still use iptables alongside UFW, but I only use those for more complex things like port forwarding, masquerading, etc.
