[tor-bugs] #21273 [Applications/Tor Launcher]: Proxy settings unecessarily limit guard selection process

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Jan 20 14:59:15 UTC 2017


#21273: Proxy settings unecessarily limit guard selection process
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 Reporter:  pastly                     |          Owner:  brade
     Type:  defect                     |         Status:  new
 Priority:  Medium                     |      Milestone:
Component:  Applications/Tor Launcher  |        Version:
 Severity:  Normal                     |     Resolution:
 Keywords:                             |  Actual Points:
Parent ID:                             |         Points:
 Reviewer:                             |        Sponsor:
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Comment (by mcs):

 Replying to [ticket:21273 pastly]:
 > I can reach any port on through this socks5 proxy. My guard selection is
 being artificially limited to guards that have an ORPort of 443.
 >
 > I suspect that ReachableAddresses should only be set to 80 and 443 if
 the proxy type is HTTP(S). Or not at all unless "This computer goes
 through a firewall that only allows connections to certain ports" is
 checked. In my very limited experience with proxies, it seems sane to
 assume only 80/443 for HTTP(S) proxies, but it doesn't seem sane to assume
 80/443 for a socks5 proxy.

 The rationale for Tor Launcher's behavior came from here:

 https://trac.torproject.org/projects/tor/ticket/11405#comment:7

 I don't know if "many proxies restrict the set of ports they'll proxy for"
 applies to SOCKS5 proxies or not, but the goal was to do something that
 would result in a working Tor Browser for most people.  You can edit torrc
 manually, but the ReachableAddresses settings may be overwritten if you
 make changes later using the Tor Network Settings window.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21273#comment:1>
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