wkrp

Since doing the research in this paper, Kathrin has done further work with QUIC blocking, and started a respository that tracks known blocking events (including in Russia and Uganda, in...

**EDIT:** Triggering an ESNI block from the outside no longer works, since 2020-08-13 06:32. [See below.](https://github.com/net4people/bbs/issues/43#issuecomment-673322409) Because the GFW's ESNI detection is bidirectional, you can easily experiment with the blocking...

> Specifically, we replace the `0xffce` in a triggering ClientHello with the values of `0xff02`, `0xff03`, and `0xff04` respectively. And no blocking is observed after sending such modified ClientHellos. The...

> * Why now? According to Wikipedia ESNI is only in production in Firefox since March 2020 and it is not supported in Chrome. Lack of Chrome support indicates poor...

> Starting from `Thursday, August 13, 2020 6:32 AM UTC`, we could **not** trigger ESNI blocking **from the outside of China to the inside of China** anymore from different vantage...

I have not been able to find out yet whether even DNS is blocked during the shutdown. I am reminded of the [2019 shutdown in Iran](https://ooni.org/post/2019-iran-internet-blackout/#connecting-to-the-internet-from-iran), where DNS was not...

> There has been reported that telegram works using some SOCKS proxy during the shutdown. Not sure if it was shadowsocks or not. Thanks. Do you know what ISP or...

> You can see in the Cloudflare graph that traffic has risen above zero 3 times, for about 3 hours at a time, since the start of the shutdown. This...

> SOCKS proxies over 3785 port work on many ISP in different regions now. [It's reported](https://ntc.party/t/network-shutdown-all-around-kazakhstan/1601/19) that a Tor obfs4 bridge on port 3785 works as well. Some other ports...

The Tor Project has posted a guide, in Russian and English, on how to get bridges that work in Kazakhstan. Because, at this point, access requires specific port numbers, you...