[tor-bugs] #11058 [Tor Check]: check.tpo occasionally points to wrong relay on atlas.tpo

[Tor Bug Tracker & Wiki]

#11058: check.tpo occasionally points to wrong relay on atlas.tpo
---------------------------+---------------------
     Reporter:  infinity0  |      Owner:  arlolra
         Type:  defect     |     Status:  closed
     Priority:  normal     |  Milestone:
    Component:  Tor Check  |    Version:
   Resolution:  duplicate  |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |
---------------------------+---------------------
Changes (by arlolra):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 Thanks for reporting. This is a duplicate of #10499.

 What's happening is that TorDNSEL is conflating IPs with the wrong nodes,
 and check needs to remember IPs it has seen from relays in the past.

 From the data at metrics.tpo, we see many incorrectly assigned exit
 addresses.

 {{{
 ./11/2014-02-11-02-02-10:ExitNode 6018E567218564B0BE2F2EA3C113C886B0BB7957
 ./11/2014-02-11-02-02-10-Published 2014-02-10 22:09:27
 ./11/2014-02-11-02-02-10-LastStatus 2014-02-10 23:02:10
 ./11/2014-02-11-02-02-10-ExitAddress 185.2.138.125 2014-02-10 01:06:38
 ./11/2014-02-11-02-02-10-ExitAddress 109.163.234.8 2014-02-10 01:06:38
 ./11/2014-02-11-02-02-10-ExitAddress 88.191.103.153 2014-02-10 08:11:32
 ./11/2014-02-11-02-02-10-ExitAddress 193.107.85.59 2014-02-10 08:11:37
 ./11/2014-02-11-02-02-10-ExitAddress 193.111.141.30 2014-02-10 08:11:37
 ./11/2014-02-11-02-02-10-ExitAddress 78.108.63.44 2014-02-10 08:11:38
 ./11/2014-02-11-02-02-10-ExitAddress 81.89.96.88 2014-02-10 21:11:24
 ./11/2014-02-11-02-02-10-ExitAddress 185.17.93.142 2014-02-10 21:11:25
 ./11/2014-02-11-02-02-10-ExitAddress 82.146.48.179 2014-02-10 23:09:03
 ./11/2014-02-11-02-02-10-ExitAddress 50.7.210.218 2014-02-10 23:09:03
 ./11/2014-02-11-02-02-10-ExitAddress 173.242.121.199 2014-02-10 23:09:03
 ./11/2014-02-11-02-02-10-ExitAddress 223.223.175.253 2014-02-10 23:09:04
 }}}

 {{{
 ./20/2014-02-20-06-02-02:ExitNode DCD6AD4ABB48BF5FE8C52089DC0E768039A3B8E1
 ./20/2014-02-20-06-02-02-Published 2014-02-19 09:20:17
 ./20/2014-02-20-06-02-02-LastStatus 2014-02-20 04:02:43
 ./20/2014-02-20-06-02-02-ExitAddress 96.47.226.20 2014-02-19 05:18:56
 ./20/2014-02-20-06-02-02-ExitAddress 178.254.39.32 2014-02-19 05:20:12
 ./20/2014-02-20-06-02-02-ExitAddress 93.174.90.30 2014-02-19 05:20:18
 ./20/2014-02-20-06-02-02-ExitAddress 77.247.181.165 2014-02-19 13:18:24
 ./20/2014-02-20-06-02-02-ExitAddress 109.163.234.9 2014-02-19 13:18:35
 }}}

 Karsten suggested a fix of linking to atlas' search for the IP, rather
 than directly to a fingerprint. This has the bonus of solving the case
 where multiple nodes are hosted on the same IP.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11058#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online