Windy.com Server Misconfiguration Causes Chinese Users' Startup Location to be Set to London
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I noticed that the start-up location of Chinese IP addresses is in London.
According to my research, the reason may be that the server of
www.windy.com(35.201.88.123, AS396982 Google LLC, Kansas City, Missouri, USA) located in Google Cloud is inaccessible in China [1], so windy switched the resolve in China tob1.windyty.com(139.162.210.148, AS63949 Akamai Technologies, Inc. ,London, England, GB), and the misconfiguration of this server caused the start-up location of all Chinese users to be in London (that is, the geographical location of this server). It can be verified using the curl method [2].[1] I don't know the reason, but using the traceroute command, there is no ICMP echo packet outside of China, so it is speculated that it is blocked by GFW.
[2] Same IP address, different geoip:$ torsocks curl https://www.windy.com/ --resolve "www.windy.com:443:35.201.88.123" [...]<meta name="geoip" content="45.90.185.109,51.2993,9.4910,DE,">[...]$ torsocks curl https://www.windy.com/ --resolve "www.windy.com:443:139.162.210.148" [...]<meta name="geoip" content="45.90.185.109,51.5095,-0.0955,GB,London">[...] -
@tomacat Hey there, yes, we use Google Cloud and that's quite a problem with China, so we route traffic from China through Linode. I can see in our code that it knows about this and tries to calculate the location from the original IP, so there's probably some bug, I'm gonna check it and will let you know if we manage to fix it :)
BTW, if you don't use Tor, can you access Windy from China without any problems?
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BTW, if you don't use Tor, can you access Windy from China without any problems?
@selverob Yes, I can. (Although it is a little bit slow) I just want to mask my IP address on this post. (Tor can also prove that even if someone is not in China.)
