Installing Transmission on Ubuntu Server

apt-get install transmission-daemon

/etc/init.d/transmission-daemon stop

nano /var/lib/transmission-daemon/info/settings.json

/etc/init.d/transmission-daemon start

access from the web server using port 9091 or whatever you set in your settings

typical settings

 "rpc-authentication-required":true, 
 "rpc-bind-address": "0.0.0.0", 
 "rpc-enabled": true, 
 "rpc-password": "{1cc72c39f8a3d1c23e81a6ea37f72f2d0085399dKxhyBIwU  ", 
 "rpc-port": 9091, 
 "rpc-username": "user", 
 "rpc-whitelist": "127.0.0.1,192.168.1.*",
 "rpc-whitelist-enabled": true, 
 "speed-limit-down": 100, 
 "speed-limit-down-enabled": false, 
 "speed-limit-up": 100, 
 "speed-limit-up-enabled": false, 
 "upload-limit": 20, 
 "upload-limit-enabled": 0, 
 "upload-slots-per-torrent": 14

also make sure you save directory is chmodded to work