The greatfirewall of China




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The "Great Firewall" is a colloquial term for mainland China's internet censorship system. It's part of the Golden Shield Project, also called the National Public Security Work Informational Project. Both legislative actions and enforcement technologies are used to regulate the country's internet. The Great Firewall blocks foreign websites, apps, social media, VPNs, emails, instant messages and other online resources deemed inappropriate or offensive by authorities. This ranges from vulgar content such as depictions of violence and pornography to more politically-sensitive materials that promote democracy or depict the ruling Communist Party in a poor light. Western social media (Facebook, Twitter), user-generated content sites (Youtube), and tools (Gmail) are blocked almost wholesale unless they agree to comply with Chinese laws and regulations. A combination of technologies are used in combination by government-run internet service providers and domestic internet companies to censor content, including keyword filtering, IP address blacklists, DNS poisoning, packet inspection, and manual enforcement.