Great Firewall

Rare card · No. 61319

The Great Firewall (GFW; Chinese: 防火墙; pinyin: Fánghuǒ Qiáng) is the combination of legislative actions and technologies enforced by the People's Republic of China to regulate the Internet domestically. Its role in internet censorship in China is to block access to selected foreign websites and to slow down cross-border internet traffic. The Great Firewall was formerly operated by the State Internet Information Office, as part of the Golden Shield Project. Since 2013, the firewall is operated by the Cyberspace Administration of China (CAC), the national internet content regulator and censor of China. The Great Firewall operates by checking transmission control protocol (TCP) packets for keywords or sensitive words. If the keywords or sensitive words appear in the TCP packets, access will be closed. If one link is closed, more links from the same machine will be blocked by the Great Firewall. The effect includes: limiting access to foreign information sources, blocking popular foreign websites...

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