Defense Data Network


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Defense Data Network

(DDN) A global communications network serving the US Department of Defense. Composed of MILNET, other portions of the Internet, and classified networks which are not part of the Internet. The DDN is used to connect military installations and is managed by the Defense Information Systems Agency.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
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NSI also performs equipment installation and maintenance at 2500 "A" network customer sites nationwide for FTS 2000, (the Federal Government Telecommunications System), and provides a global network information center services for the Internet and the Defense Data Network.
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