The Great Wall in China, mysteriously cut in the world for an hour

For about an hour on Wednesday, China seemed dark – or at least access to the Internet throughout the country. According to The analysis published by the Great Protection Wall ReportA group that monitors the Internet control efforts in China, something happened in the early hours of Wednesday morning, which led to China almost all traffic to TCP 443 port, which is the record of HTTPS.

Between 12:34 and 1:48 am in Beijing, a person observed “incidental TCP RST+ACK packages to disrupt all connections to the TCP 443 port”, according to the Great Wall Report. “This accident caused a major disturbance in Internet connections between China and the rest of the world.” As a result, Chinese citizens have not been able to access most of the locations hosted outside China, and the services operating in China, but communication with external servers were cut during power outages.

in the pastThe Great Protection Wall in China has banned the HTTPS connection, which uses encryption to safely transfer information between the user device and the web server they are trying to access, and is usually a way to prevent this movement from directing to safer protocols that reduce the amount of information that can be collected. but According to the GFW reportThis situation was strange because it exclusively affected the port 443. Other joint ports such as 22, 80 and 8443, as in 2020 when it is The Great Protection Wall is banned https protocols Each outlet, from 1 to 65535.

So why is the limited restriction that was not really limited because it reached the most common port? It is difficult to say. like The GFW report indicatedThe Great Protection Wall does not work with single central control. Instead, a number of entities have the ability to prevent access. What adds more conspiracies in this situation, though, is the fact that the device that has been identified as blocking traffic “does not match the fingerprints of any known GFW devices”, according to the analysis, “which indicates that the accident was caused either by a new GFW device or a known device that works in a new or wrong state.”

Although China sometimes limits access to the Internet during the events that the government prefers with it, it does not seem that such an occurrence was taking place at the time of power outages. So one of the observers might have wanted to test the ability if he needed to publish it in the future. Or maybe just someone Adjust the taklla bottle to the deletion key.