I have recently installed transmission daemon, while trying to config my user settings from the commadline, i noticed this line. [04:07:41.304] Couldn't bind port 51413 on 0.0.0.0: Address already in use (Is another copy of Transmission already running?) (net.c:371) Having already stopped the daemon /etc/init.d/transmission-daemon stop and successfully added sudo transmission-daemon -f -t -u username -v password -w ~/Downloads to create a user, not -g global config file. I am unable to find what it is still running. I did a uninstall of transmission and purged, reinstalled only the daemon, remote and cli, and still get the same message? could someone explain what is still running please.
51413 is in the Ephemeral Port range, therefore any application can dynamically use that port, even if it's not a server (outgoing connections bind to a dynamic port on the local interface). I would recommend using a number lower than 32768 and higher than 1024 for all server applications, and look in /etc/services to avoid any assigned numbers, otherwise this problem can reoccur at any time randomly.