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Re: [tor-bugs] #19068 [Core Tor]: Write and run a clique reachability test.



#19068: Write and run a clique reachability test.
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 Reporter:  yawning        |          Owner:
     Type:  task           |         Status:  new
 Priority:  Medium         |      Milestone:
Component:  Core Tor       |        Version:  Tor: unspecified
 Severity:  Normal         |     Resolution:
 Keywords:  stem, tooling  |  Actual Points:
Parent ID:                 |         Points:
 Reviewer:                 |        Sponsor:
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Comment (by teor):

 There's also this work in progress (not by me):
 https://github.com/TheTorProject/bwscanner/blob/develop/bwscanner/detect_partitions.py

 Some of the issues I ran into when writing a similar script:
 * network load - running these tests as fast as you can puts significant
 load on the network
 * what if a relay is down, rather than blocked?
 * making ~7000 connections through a single relay might overload it,
 particularly if it's low-bandwidth, file-descriptor limited, or behind a
 NAT box
 * connection testing is directional - sometimes relay A can initiate a
 connection to relay B, but relay B can't initiate a connection to relay A.
 But once they're connected, they can both exchange cells

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19068#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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