gfw-report
gfw-report
Dear Xray-core developers, @Maker2002 [reported](https://github.com/net4people/bbs/issues/69#issuecomment-869166522) that: > I'm using shadowsocks with chacha20-ietf-poly1305 by https://github.com/XTLS/Xray-core. > Only the listening port was blocked 40 mins ago. While we have **no** evidence that...
**Authors:** Anonymous, David Fifield, Amir Houmansadr Date: Friday, September 24, 2021 [*中文版：评估苹果的iCloud Private Relay的抗封锁能力*](https://gfw.report/blog/private_relay_censorship/zh/) This report first appeared on [Net4People](https://github.com/net4people/bbs/issues/87). We also maintain an up-to-date copy of the report on...
Since March 2021, at least three users have reported that their Shadowsocks-libev servers became not pingable (temporarily in some cases) even after following the recommended setup in [this tutorial](https://gfw.report/blog/ss_tutorial/en/) ([中文版](https://gfw.report/blog/ss_tutorial/zh/))....
On September 4, 2021, @shell12345 [reported](https://github.com/shadowsocks/shadowsocks-android/issues/2798) that "the China Telecom will send '127.0.0.1' if request a sensitive domain name". In particular, `cp.cloudflare.com` was resolved to `127.0.0.1`. Our investigation shows that...
**Authors**: Anonymous, Anonymous, Anonymous, David Fifield, Amir Houmansadr Date: Tuesday, January 26, 2021 [中文版: 防御GFW主动探测的实用指南](https://gfw.report/blog/ss_advise/zh/) This report appeared first on [GFW Report](https://gfw.report). We also maintain an up-to-date copy of the...
# How China Detects and Blocks Shadowsocks **Authors**: Anonymous, Anonymous, Anonymous, David Fifield, Amir Houmansadr Date: Sunday, December 29, 2019 [中文版：Shadowsocks是如何被检测和封锁的](https://gfw.report/blog/gfw_shadowsocks/zh.html) This report first appeared on [GFW Report](https://gfw.report/blog/gfw_shadowsocks). We also...
**Authors:** Kevin Bock, iyouport, Anonymous, Louis-Henri Merino, David Fifield, Amir Houmansadr, Dave Levin Date: Friday, August 7, 2020 [中文版: 揭示和规避中国对加密SNI（ESNI）的封锁](https://gfw.report/blog/gfw_esni_blocking/zh/) This report first appeared on [censorship.ai](https://geneva.cs.umd.edu/posts/china-censors-esni/esni/). We also maintain an...
Author: Anonymous Date: Sunday, March 08, 2020 **Credits**: GFW Report did not contribute in any step of this work. All credits goes to [gfwrev](https://twitter.com/gfwrev). [中文版： GFW考古：gfw-looking-glass.sh](https://gfw.report/blog/gfw_looking_glass/zh) This report first appeared...
**Authors**: Anonymous, Anonymous Date: Saturday, October 15, 2022 中文版：[分享一个修改版的Shadowsocks，兼谈我们对猫鼠游戏的一点想法](https://github.com/net4people/bbs/issues/136#issuecomment-1279632644) --- In this post, we release and open source a modified version of Shadowsocks that can bypass the current GFW's detection...
Starting from October 3, 2022 (Beijing Time), more than 100 users reported that at least one of their TLS-based censorship circumvention servers had been blocked. The TLS-based circumvention protocols that...