I tried using Hamachi to play with a friend and he told me there was a vpn error next to my name. We could not connect at all and I tried everything to fix it. According to this website https://appuals.com/how-to-fix-hamachi-vpn-status-error/ the error could either be due to a VPN or my firewall blocking SSH tunneling...
- I'm on a freshly installed Ubuntu 20.04 LTS, only a week into use.
- I have never downloaded a VPN, other than Hamachi itself.
- I haven't messed with my firewall or anything to do with my internet. I use ethernet through powerline.
- I use a GigaByte H310M motherboard (in case the problem could be in my BIOS)
- I have yet to test Hamachi on my laptop to determine if the problem is my router.
Does Ubuntu block this by default? Is there a way for me to check what could be blocking it if not the firewall itself? How do I fix it?
Things have gotten weirder. I will clarify one thing: I have only tried using Hamachi with a single friend so far and the VPN error shows up for him. With that said...
I booted an entirely different computer, running windows 10, downloaded Hamachi fresh out of the website and loaded into the server we had made. The same error showed up there, exactly the same as it was before and I know that it isn't the Windows Firewall blocking it.
I did some of the steps from the link that @WinEunuuchs2Unix provided to set up UFW on Linux and allow shh, http and https. Still the error showed up for my friend. After that I went on to my routers configuration website and manually put in ssh port forwarding as well as changing a few other things. The SAME error. I undid most of the stuff on my router just in case for safety.
At this point the problem is either: my router's manufacturers made it somehow impossible to use ssh. OR my friend is the problem. In either case this is no longer a Linux problem, so if there is any other possibility here, comment and we'll keep the rabbit hole going.
