[tor-bugs] #2511 [Tor Client]: Tor will use an unconfigured bridge if it was a configured bridge last time you ran Tor

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#2511: Tor will use an unconfigured bridge if it was a configured bridge last time
you ran Tor
------------------------+---------------------------------------------------
 Reporter:  arma        |       Owner:                    
     Type:  defect      |      Status:  new               
 Priority:  normal      |   Milestone:  Tor: 0.2.2.x-final
Component:  Tor Client  |     Version:                    
 Keywords:              |      Points:                    
   Parent:              |  
------------------------+---------------------------------------------------
 If you configure your Tor client with
 {{{
 usebridges 1
 bridge 128.31.0.34:9009
 }}}
 and you run it and it works, then Tor will end up writing two things to
 disk: 1) a @purpose bridge descriptor for 128.31.0.34 in your cached-
 descriptors file:
 {{{
 @downloaded-at 2011-02-08 07:54:52
 @source "128.31.0.39"
 @purpose bridge
 router bridge 128.31.0.34 9009 0 0
 ...
 }}}
 and 2) an entry guard stanza in your state file:
 {{{
 EntryGuard bridge 4C17FB532E20B2A8AC199441ECD2B0177B39E4B1
 EntryGuardAddedBy 4C17FB532E20B2A8AC199441ECD2B0177B39E4B1 0.2.3.0-alpha-
 dev 2011-02-01 18:43:23
 }}}

 Then if you kill your Tor and run it with
 {{{
 usebridges 1
 bridge 150.150.150.150:9009
 }}}
 it will successfully bootstrap -- using the bridge that worked before but
 isn't your requested bridge.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2511>
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