[tor-bugs] #13885 [Tor]: AllowDotExit strange behavior

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jan 14 14:52:46 UTC 2015


#13885: AllowDotExit strange behavior
-----------------------------+--------------------------------
     Reporter:  nixscripter  |      Owner:
         Type:  defect       |     Status:  closed
     Priority:  major        |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor          |    Version:
   Resolution:  not a bug    |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |
-----------------------------+--------------------------------
Changes (by nickm):

 * status:  new => closed
 * resolution:   => not a bug


Comment:

 Here's what I'm seeing in that log.

 When you resolve ftp.sjtu.cn.kramse.exit, it uses kramse.exit to resolve
 ftp.sjtu.cn.  That gives you the IP address 202.38.97.230.

 Then your application asks for a connection to 202.38.97.230, but it
 doesn't request "202.38.97.230.kramse.exit".  So Tor is allowed to connect
 to that address with any exit it wants.

 It looks to me like you need to use AutomapHostsOnResolve and
 AutomapHostsSuffixes here; in that case, Tor would respond to the Resolve
 request by telling you 127.129.x.y or something, and then later when you
 asked for 127.129.x.y, it would remember that you wanted that to mean
 "ftp.sjtu.cn.kramse.exit"

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13885#comment:3>
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