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National intranet

Large-scale intranet maintained by a nation-state as a substitute for the Internet

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Through Nation state, Internet and Search engine

Such networks generally come with access to state-controlled media and national alternatives to foreign-run Internet services: search engines, web-based email, and so forth.

List of countries with active national intranets

China

China does not maintain a national intranet. Instead, it relies on selective blocking of foreign internet content, a system termed the Great Firewall, combined with censorship of content posted from within its borders, such as by blocking lists of "sensitive" keywords.

North Korea

North Korea's Kwangmyong network, dating back to 2000, is the best-known of this type of network. Cuba and Myanmar also use a similar network system that is separated from the rest of the Internet. The network uses domain names under the .kp top-level domain that are not accessible from the global Internet. As of 2016, the network uses IPv4 addresses reserved for private networks in the 10.0.0.0/8 range.

Iran

The National Information Network of Iran works like the Great Firewall of China. In April 2011, a senior Iranian official, Ali Agha-Mohammadi announced government plans to launch its own "halal Internet", which would conform to Islamic values and provide "appropriate" services. Creating such a network, similar to the North Korean example, would prevent unwanted information from outside Iran getting into the closed system. The Iranian walled garden would have had its own localized email service and search engine. Iran conducted the longest internet shutdown in history, the 2026 Internet blackout in Iran, and imported internet censorship hardware from China.

Turkmenistan

Turkmenistan blocks foreign websites by ISP since 2009, including YouTube.

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