[tor-bugs] #18828 [Tor]: Regenerate fallback list for 0.2.9

[Tor Bug Tracker & Wiki]

#18828: Regenerate fallback list for 0.2.9
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     Reporter:  teor         |      Owner:  teor
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: 0.2.???
    Component:  Tor          |    Version:
     Severity:  Normal       |   Keywords:  TorCoreTeam201609, 029-proposed
Actual Points:               |  Parent ID:
       Points:  medium       |   Reviewer:
      Sponsor:  SponsorU-    |
  can                        |
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 We need to regenerate the fallback directory mirror list in 0.2.9 in case
 any of the 0.2.8 fallbacks have changed details or gone down.

 This should not require another opt-in mailout, as we had ~70 additional
 fallbacks in 0.2.8 that were suitable but not selected.

 We should also:
 * check the bandwdith range in the script's generated C comments
 * check the IP version, netblock, port, and Exit flag proportions in the
 script's stderr output

 Over the longer term, we could:
 * reconsider whether to allow 2 fallbacks per operator (contact, family),
 while keeping 1 per IP
 * decide whether to change to an opt-out system, where we includes
 fallbacks unless operators specifically opt-out

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18828>
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