Install the backend bittorent client

apt-get install transmission-daemon

Close the running daemon (otherwise your settings will be overwritten)

systemctl stop transmission-daemon.service

Now edit the file

nano /etc/transmission-daemon/settings.json

Change the following values

 "rpc-username": "sysadmin",
 "rpc-whitelist": "10.3.200.*",
 "download-dir": "/srv/data/torrents",
 "incomplete-dir": "/srv/data/torrents",
 "rpc-password": "<password here>",
 "rpc-username": "sysadmin",
 "rpc-port": 9000,

Change the ownership on the current torrents folder

chown sysadmin:debian-transmission /srv/data/torrents/ -R

You can now login on port 9000 with the username and password that you defined.

You must port forward inbound traffic from your router to the server using the values set in the parameter

"peer-port": 51413,

So in this case we would port forward 51413 to solaris.scottworld.net