Important files /etc/init.d/transmission-daemon -> SysV service /etc/default/transmission-daemon -> run by /etc/init.d/transmission-daemon /********/.config/transmission-daemon -> CONFIG_DIR in /etc/default/transmission-daemon /********/.config/transmission-daemon/settings.json User and Group running transmission-daemon change to desired ones (e.g. USER=************) in /etc/init.d/transmission-daemon