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Re: [tor-bugs] #28461 [Core Tor/sbws]: Encourage sbws operators to install a local caching resolver



#28461: Encourage sbws operators to install a local caching resolver
---------------------------+-----------------------------
 Reporter:  teor           |          Owner:  (none)
     Type:  defect         |         Status:  new
 Priority:  Medium         |      Milestone:
Component:  Core Tor/sbws  |        Version:  sbws: 1.0.0
 Severity:  Normal         |     Resolution:
 Keywords:  doc            |  Actual Points:
Parent ID:  #28458         |         Points:
 Reviewer:                 |        Sponsor:
---------------------------+-----------------------------

Comment (by teor):

 Replying to [comment:1 juga]:
 > I don't think this is a good idea, because:
 > 1. you give more work to bwauths

 Yes, this is true. Although installing a caching / recursive resolver
 takes about 5 minutes.

 > 2. sbws relay on one more external thing

 sbws already relies on the system DNS resolver, which is sometimes
 unreliable.
 Installing a caching or recursive resolver makes DNS more reliable.

 > 3. sbws traffic is fingerprintable, but dns queries will go in most
 cases in clear

 sbws already relies on the system DNS resolver, which sends DNS queries in
 the clear.

 > 4. if using a CDN, the ip that that the bwauth server gets will be
 different that the one the exit will see, so checking if we can exit with
 a relay with that ip, doesn't make sense

 We already talked about the CDN issue in:
 https://trac.torproject.org/projects/tor/ticket/28458#comment:3

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28461#comment:3>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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