mosh problems
I think you should open more than one (although 2 should suffice for my usage). And maybe open port 60001 instead of 60000, because it seems to default to 60001, and it seems to search upwards...
mosh problems
For Mosh to work, it seems it also needs to be able to reach some additional ports...
$ mosh exozy.me
mosh did not make a successful connection to 99.46.207.19:60002.
Please verify…