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Re: [tor-bugs] #20216 [Metrics/Censorship analysis]: Iran blocking of direct users, 2016-08 and 2016-09
#20216: Iran blocking of direct users, 2016-08 and 2016-09
-----------------------------------------+---------------------
Reporter: dcf | Owner:
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Metrics/Censorship analysis | Version:
Severity: Normal | Resolution:
Keywords: censorship block | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Description changed by dcf:
Old description:
> Direct users in Iran dropped from 8,000 to 2,000 between 2016-08-20 and
> 2016-08-23. The numbers recovered to 4,000, then crashed to 400 on
> 2016-09-03 and 2016-09-04.
> [[Image(userstats-relay-country-ir-2016-06-24-2016-09-22-off.png)]]
> [https://metrics.torproject.org/userstats-relay-
> country.html?start=2016-06-24&end=2016-09-22&country=ir&events=off link]
>
> Looking at bridge users, there is an increase right around 2016-08-20,
> the time of the first blocking, then an abrupt return to previous levels
> around 2016-09-03, the time of the second blocking.
> [[Image(userstats-bridge-combined-ir-2016-06-24-2016-09-22.png)]]
> [https://metrics.torproject.org/userstats-bridge-
> country.html?start=2016-06-24&end=2016-09-22&country=ir link]
>
> Looking at the graph of bridge users by transport, obfs4 continued
> working while obfs3 and vanilla were blocked.
> [[Image(userstats-bridge-country-ir-2016-06-24-2016-09-22.png)]]
> [https://metrics.torproject.org/userstats-bridge-
> combined.html?start=2016-06-24&end=2016-09-22&country=ir link]
New description:
Direct users in Iran dropped from 8,000 to 2,000 between 2016-08-20 and
2016-08-23. The numbers recovered to 4,000, then crashed to 400 on
2016-09-03 and 2016-09-04.
[[Image(userstats-relay-country-ir-2016-06-24-2016-09-22-off.png)]]
[https://metrics.torproject.org/userstats-relay-
country.html?start=2016-06-24&end=2016-09-22&country=ir&events=off link]
''Edit 2016-10-04: the bridge changes below, on further investigation,
appear to be unrelated to anything done by Iran.''
Looking at bridge users, there is an increase right around 2016-08-20, the
time of the first blocking, then an abrupt return to previous levels
around 2016-09-03, the time of the second blocking.
[[Image(userstats-bridge-country-ir-2016-06-24-2016-09-22.png)]]
[https://metrics.torproject.org/userstats-bridge-
country.html?start=2016-06-24&end=2016-09-22&country=ir link]
Looking at the graph of bridge users by transport, obfs4 continued working
while obfs3 and vanilla were blocked.
[[Image(userstats-bridge-combined-ir-2016-06-24-2016-09-22.png)]]
[https://metrics.torproject.org/userstats-bridge-
combined.html?start=2016-06-24&end=2016-09-22&country=ir link]
--
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20216#comment:10>
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