[tor-bugs] #27849 [Core Tor/Tor]: incompatibility between tor 0.3.4.8 and onion.debian.org torrc (SocksPort 0)

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#27849: incompatibility between tor 0.3.4.8 and onion.debian.org torrc (SocksPort
0)
--------------------------+------------------------------
 Reporter:  pabs          |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.3.4.8  |       Severity:  Normal
 Keywords:  config        |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 Debian uses a minimal torrc on onion.debian.org (our onionbalance node)
 and tor from Debian backports. We recently upgraded from 0.3.3.9-1~bpo9+1
 to 0.3.4.8-1~bpo9+1 and discovered that our onionbalance services were no
 longer working, but the backend onion services and our normal onion
 services were still working. The issue was that the tor daemon on
 onion.debian.org could not achieve bootstrap. tor 0.3.3.9 worked with the
 existing config, but 0.3.4.8 did not. Changing the SocksPort parameter
 from 0 to 6666 allowed tor 0.3.4.8 to achieve bootstrap.

 The config does not contain any onion services, because those are setup by
 onionbalance via the tor control port.

 So the issue appears to be that tor is not trying to contact the tor
 network unless it has a socks port or an onion service or other tor
 network requiring thing configured.

 {{{
 SocksPort 0
 Log notice syslog

 #HiddenServiceSingleHopMode 1
 #HiddenServiceNonAnonymousMode 1


 ControlPort 9051
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27849>
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