this post was submitted on 21 Aug 2025
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Technology

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China cut itself off from the global internet on Wednesday (www.theregister.com)
submitted 10 months ago by technocrit@lemmy.dbzer0.com to c/technology@lemmy.world
55 comments fedilink hide all child comments
 

Activist group Great Firewall Report spotted the outage, which it said disrupted all traffic to TCP port 443 – the standard port used for carrying HTTPS traffic.

“Between approximately 00:34 and 01:48 (Beijing Time, UTC+8) on August 20, 2025, the Great Firewall of China (GFW) exhibited anomalous behavior by unconditionally injecting forged TCP RST+ACK packets to disrupt all connections on TCP port 443,” the group wrote in a Wednesday post.

That disruption meant Chinese netizens couldn’t reach most websites hosted outside China, which is inconvenient. The incident also blocked other services that rely on port 443, which could be more problematic because many services need to communicate with servers or sources of information outside China for operational reasons. For example, Apple and Tesla use the port to connect to offshore servers that power some of their basic services.

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[–] SoupBrick@pawb.social 32 points 10 months ago (1 children)

My friend, this post is about China getting cut off from the rest of the word, most likely due to government censorship.

The title of this community is Technology.

It is a PSA about the current steps the US is taking towards similar levels of censorship. This is pretty damn relevant to both the community and the post topic.

I know some people don't like it, but politics is part of tons of different communities. Even a crafting community would be affected by the current tariffs.