MILNET

{{short description|US military network}}

File:MILNET-US-Geographical-1989.jpg

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In computer networking, MILNET (fully Military Network) was the name given to the part of the ARPANET internetwork designated for unclassified United States Department of Defense traffic.DEFENSE DATA NETWORK NEWSLETTER [https://www.rfc-editor.org/rfc/museum/ddn-news/ddn-news.n26.1 DDN-NEWS 26], 6 May 1983Harris, Dr. Thomas G., et al., "Development of the MILNET," 15th Annual Electronics and Aerospace Systems Conference, Eascon 82, IEEE CH1828 Conference Record, 1982, pp. 77-80.

MILNET was physically separated from the ARPANET in 1983.[https://apps.dtic.mil/sti/pdfs/ADA164353.pdf ARPANET INFORMATION BROCHURE] (NIC 50003) Defense Communications Agency, December 1985. The ARPANET remained in service for the academic research community, but direct connectivity between the networks was severed for security reasons. Gateways relayed electronic mail between the two networks. BBN Technologies built and managed both the MILNET and the ARPANET and the two networks used very similar technology. It is also known as "Military Net."

During the 1980s the MILNET expanded as part of the Defense Data Network,{{cite book |chapter= ARPANET, the Defense Data Network, and Internet |title= The Froehlich/Kent Encyclopedia of Telecommunications |author1=Alex McKenzie |author2= Dave Walden |publisher= CRC Press |year=1991 |pages= 341–375 |volume=1 |chapter-url= https://books.google.com/books?id=gaRBTHdUKmgC&pg=PA341 |isbn= 978-0-8247-2900-4 }} a worldwide set of military networks running at different security levels. In the 1990s, MILNET became the NIPRNET.{{Cite web|last=|first=|date=26 June 2020|title=What Was MILNET?|url=https://www.wisegeek.com/what-was-milnet.htm|archive-url=|archive-date=|access-date=27 July 2020|website=wiseGEEK}}