Instalar o TRansmission
1)Instalar transmission
apt-get install transmission-daemon

2)Configurar opção de uso com o comando
nano /etc/transmission-daemon/settings.json

"rpc-authentication-required": false,
"rpc-bind-address": "0.0.0.0",
"rpc-enabled": true,
"rpc-host-whitelist": "",
"rpc-host-whitelist-enabled": true,
"rpc-password": "{eda4971650f415ddff1bdc6a8dcf2541095045afQL9.GtL5",
"rpc-port": 9091,
"rpc-url": "/transmission/",
"rpc-username": "transmission",
"rpc-whitelist": "*.*",
"rpc-whitelist-enabled": false,

altere o local do download
"download-dir": "/HD1TB/Torrents",

Permis?o de arquivos
mude "umask": 18 para "umask": 2

OBS: comando para parar e iniciar o transmission
service transmission-daemon stop
service transmission-daemon start