Does your Mint machine have a valid IP Address? How would you connect to it using SSH? Can you connect to it using SSH?
If your machine is under NAT and you’re using something like SSH Tunnel to reach your machine, you should configure the HOST_ALIASES parameter on your client computer just like me (and Martin mentioned the topic My personal ThinLinc use case and some performance comparison)
Another option would be to setup split DNS on the network where your machine is located. I think that setting up HOST_ALIASES on your client machine is way easier.