[tor-bugs] #20495 [Metrics/Censorship analysis]: China blocking of meek, 2016-10-19
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Fri Oct 28 22:38:30 UTC 2016
#20495: China blocking of meek, 2016-10-19
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Reporter: dcf | Owner:
Type: task | Status: new
Priority: Medium | Milestone:
Component: Metrics/Censorship analysis | Version:
Severity: Normal | Resolution:
Keywords: censorship block cn meek | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by dcf):
Some other countries show a decrease on or about the same time, though not
to the same relative extent: us, ru, de, gb. (Notably absent is
[https://metrics.torproject.org/userstats-bridge-
combined.html?start=2016-09-01&end=2016-10-28&country=br br], which is way
off the chart at the top.)
One possibility is that this is another case of some botnet or other
widespread software that used meek but then suddenly stopped. Perhaps
China was simply more affected than other countries.
[[Image(meek-by-country.png)]]
{{{
library(ggplot2)
# https://metrics.torproject.org/userstats-combined-data.html
x <- read.csv("userstats-combined.csv")
x$date <- as.Date(x$date)
x$avg <- ave((x$low + x$high)/2, x$country)
p <- ggplot(x[x$node=="bridge" & x$transport=="meek" & x$avg>=50, ],
aes(x=date, y=(high+low)/2, ymax=high, ymin=low, color=country,
fill=country))
p <- p + geom_ribbon(alpha=0.5)
p <- p + geom_text(aes(label=country))
p <- p + theme(legend.position="none")
p <- p + coord_cartesian(xlim=c(as.Date("2016-09-01"),
as.Date("2016-10-28")), ylim=c(0, 1500))
p <- p + scale_x_date(date_breaks="1 month", date_minor_breaks="1 week")
ggsave("meek-by-country.png", p, width=10, height=5, dpi=90)
}}}
--
Ticket URL: <https://troodi.torproject.org/projects/tor/ticket/20495#comment:5>
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