[转载]Hardening the Internet
信息来源：[url]http://www.dhs.gov/[/url]The Internet was designed 35 years ago as a robust, distributed network without centralized control in order to provide resiliency against a multitude of attacks, including nuclear war. Globally, the Internet has been substantially built out and built up throughout the last decade. The Internet is more than just a network of routers. Across the world, it has a network of computers, ranging from high-end computing environments and server farms in offices to enduser, personal computers in households. This distributed network of systems has proven resilient, especially to point failures such as the 9/11 terrorist attacks, natural disasters, or backhoes.
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