To access web interfaces on other systems, use SSH port forwarding, like so:
ssh -L [localport]:foreign-system:[foreignport] tunnel-system
This makes a connection yourmachine:localport <-> <tunnel-system> <-> foreign-system:foreignport
So, from your local system to open a mysql connection to "roentgen", use:
ssh -L 33306:roentgen:3306 gourd.unh.edu
You can now use mysql as if it is running locally on port 33306:
mysql -P 33306 -h 127.0.0.1 -p
Note: yes, you must use -h 127.0.0.1, or else mysql will try /tmp/mysql.sock and fail to connect, since it is trying your locally running mysqld.
Note: In order to forward privileged ports, you need root access. SO DON'T!