[tor-bugs] #24805 [Core Tor/Fallback Scripts]: Update fallback whitelist and blacklist in late 2018

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#24805: Update fallback whitelist and blacklist in late 2018
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  (none)
     Type:  enhancement                          |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Fallback Scripts            |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  fallback, 034-triage-20180328,       |  Actual Points:
  034-removed-20180328                           |
Parent ID:  #24786                               |         Points:  0.5
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by phoul):

 I have just pushed another commit with 9 more relays added to the fallback
 list. I've also followed up with large relay operators today to see if
 they have any more to offer us.

 https://github.com/Phoul/tor/commit/d7e7c0d20d15d90882bc0b963f897a99b5d7585a

 (there is a spacing issue in this commit on the final line, the following
 commit fixes it)

 Replying to [comment:33 teor]:
 > That branch has 20 new and 2 changed IPv4 addresses.
 >
 > Our target is >30% of the final count having new or changed IPv4
 addresses, we currently have a best case scenario of:
 > (2 + 20)/(150 + 20) = 13%.
 >
 > If we have 170 fallbacks, we can also increase the limit per operator to
 170 x 5% = 8 relays.
 > That should gain us 5 more relays from existing large operators, which
 gives us 15% new or changed IPv4 addresses.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24805#comment:35>
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