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[tor-bugs] #4164 [Tor Cloud]: Advertise port 443, but listen on 9001

#4164: Advertise port 443, but listen on 9001
-----------------------+----------------------------------------------------
 Reporter:  runa       |          Owner:  runa
     Type:  defect     |         Status:  new 
 Priority:  normal     |      Milestone:      
Component:  Tor Cloud  |        Version:      
 Keywords:             |         Parent:      
   Points:             |   Actualpoints:      
-----------------------+----------------------------------------------------
 The Tor configuration used in the EC2 images includes "ORPort 443" and
 AccountingMax. This combination can make Tor stop working when it tries to
 re-attach the port after a period of hibernation.

 Sebastian explained the problem on IRC; When Tor starts, it will open 443
 as root and then drop its privileges. When Tor goes into hibernation, it
 closes the port. When Tor comes out of hibernation, it tries to reopen the
 port, and fails (non-root users aren't allowed to open ports lower than
 1025).

 The solution here is to advertise 443, but listen on 9001 (or another high
 port). This means that we need to have a firewall rule (e.g. using
 iptables) that can redirect the traffic.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4164>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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