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On Ubuntu, how come Tor (0.2.4.20-1) doesn't create control_auth_cookie anywhere on the system after enabling CookieAuthentication in /etc/tor/torrc?

# /etc/init.d/tor start
* Starting tor daemon...                                             [ OK ]
# tail -n 2 /var/log/tor/log
Nov 24 14:09:06.000 [notice] Tor has successfully opened a circuit. Looks like client functionality is working.
Nov 24 14:09:06.000 [notice] Bootstrapped 100%: Done.
# grep "\(DataD\|Cook\)" /etc/tor/torrc
DataDirectory /var/lib/tor
CookieAuthentication 1
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  • What makes you think it hasn't? Where did you look for the cookie? How did you enable CookieAuthentication (what value did you set it to)? – Sam Whited Nov 24 '14 at 15:54
  • I did a find / -name "control_auth_cookie". I enabled it by uncommenting CookieAuthentication 1. – Mark Boulder Nov 24 '14 at 20:43
  • Could you edit your post and insert the output of grep "\(DataD\|Cook\)" /etc/tor/torrc? – Jens Kubieziel♦ Nov 25 '14 at 8:56
  • @JensKubieziel all done! – Mark Boulder Nov 25 '14 at 10:41
  • So there should be a file in /var/lib/tor/control_auth_cookie. I tested it locally and it worked fine. Has the logfile some hints if something went wrong? – Jens Kubieziel♦ Nov 26 '14 at 20:34
2

Your Tor is probably under the impression that it has already created one. (Maybe it did and you deleted it?)
Try the following:

  • Edit your torrc to set CookieAuthentication to 0
  • reset your Tor (kill -HUP or hit x twice in Arm)
  • Edit your torrc again to set CookieAuthentication back to 1
  • reset your Tor again.

You should now have a new control cookie.

Make sure you have a ControlListenAddress and/or ControlPort set.

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  • Tried again with Debian this time. Still nothing. – Mark Boulder Feb 14 '15 at 21:06
0

If you're using the package from universe/net, the /usr/share/tor/tor-service-defaults-torrc file overrides the cookie location to /var/run/tor/control.authcookie. You should be able to find it there, or you can override that setting by adding the following line to /etc/tor/torrc:

CookieAuthFile /var/lib/tor/control_auth_cookie
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