[tor-bugs] #3511 [Tor Relay]: Automatically chosen published ports should be stable

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#3511: Automatically chosen published ports should be stable
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 Reporter:  nickm        |          Owner:                    
     Type:  enhancement  |         Status:  new               
 Priority:  normal       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay    |        Version:                    
 Keywords:               |         Parent:                    
   Points:               |   Actualpoints:                    
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 Tor 0.2.2.x adds the ability to configure ports with "FooPort auto", and
 get Tor to choose a port on its own.  However, these ports will almost
 certainly be the same across invocations of Tor, which makes them
 unsuitable for ORPort and DirPort usage.

 Tor should record the values chosen for published (that is, ORPort and
 DirPort) "auto" ports, and try to reuse them in later invocations.  Of
 course, if those ports aren't available, it'll need to choose a new port
 anyway.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3511>
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