I just made my server downstairs with a static IP address and set up port forwarding on my router for the specific SSH port that I wanted.
I connected to it using the public ip address supplied from
I was following this online tutorial (https://www.maketecheasier.com/setup-enable-ssh-ubuntu/).
It recommends connecting to this ip address over the internet, but this appears to be the public IP address of the router.
How stable is that ip address and does it change with time?
Would this be an acceptable option if I'm using this as a backup server while I'm out of the country for a month, or should I look into freeDNS?