je le lance avec 'sudo service tor start' ce qui me donne 'Redirecting to /bin/systemctl start tor.service'
et quand je fais tor j'ai :
"$ tor
Apr 01 12:52:55.343 [notice] Tor v0.2.3.25 (git-17c24b3118224d65) running on Linux.
Apr 01 12:52:55.344 [notice] Tor can't help you if you use it wrong! Learn how to be safe at
https://www.torproject.org/download/download#warning
Apr 01 12:52:55.344 [notice] Read configuration file "/etc/tor/torrc".
Apr 01 12:52:55.347 [notice] We were compiled with headers from version 2.0.18-stable of Libevent, but we're using a Libevent library that says it's version 2.0.21-stable.
Apr 01 12:52:55.347 [notice] Initialized libevent version 2.0.21-stable using method epoll (with changelist). Good.
Apr 01 12:52:55.347 [notice] Opening Socks listener on 127.0.0.1:9050
Apr 01 12:52:55.348 [warn] Could not bind to 127.0.0.1:9050: Address already in use. Is Tor already running?
Apr 01 12:52:55.348 [warn] Failed to parse/validate config: Failed to bind one of the listener ports.
Apr 01 12:52:55.348 [err] Reading config failed--see warnings above.