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Re: [tor-bugs] #18342 [Metrics/Onionoo]: onionoo has poor reverse DNS results



#18342: onionoo has poor reverse DNS results
-----------------------------+---------------------
 Reporter:  cypherpunks      |          Owner:
     Type:  defect           |         Status:  new
 Priority:  Medium           |      Milestone:
Component:  Metrics/Onionoo  |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:                   |  Actual Points:
Parent ID:                   |         Points:
 Reviewer:                   |        Sponsor:
-----------------------------+---------------------

Comment (by cypherpunks):

 Replying to [comment:4 Sebastian]:
 > The TTL of the entries of those hosts is set to something very
 unreasonably low. If you are in any way responsible for the relays
 mentioned above, please fix their DNS config.

 This ticket is not about rDNS entries of specific relays, these were
 merely examples, AFAIK these relays left the tor network a while ago:
 https://lists.torproject.org/pipermail/tor-
 relays/2016-February/008807.html

 > While the reverse dns for these IPs is set, forward entries don't exist.
 Perhaps this is an additional check that onionoo does (and I think it
 probably should do).

 If onionoo requires PTR and A DNS records to match please add that
 information to the description, currently it does not mention that in any
 way:

 https://onionoo.torproject.org/protocol.html#details :
 {{{
  host_name string optional

 Host name as found in a reverse DNS lookup of the relay IP address. This
 field is updated at most once in 12 hours, unless the relay IP address
 changes. Omitted if the relay IP address was not looked up or if no lookup
 request was successful yet.
 }}}

 I care about rDNS records (even if PTR and A records don't match) because
 I'd like to use them for group detection for ornetradar and it is
 apparently very common that providers do not have A records for PTR
 records.
 https://lists.riseup.net/www/info/ornetradar

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18342#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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