U.S. Army Research Laboratory

Aberdeen Proving Ground, MD, USA

The United States Army Research Laboratory (ARL), formerly known as the Ballistics Research Laboratory (BRL), has a long history of being a leader in the computing and networking arenas.  BRL was the home of the world's first electronic digital computer, ENIAC, and one of the first 50 sites to have a web server on the Internet.  Many BRL/ARL researchers were involved in the early development of UNIX, the Internet, and TCP/IP protocols (including DNS).  BRL was one of the first and one of the most well-connected nodes on the ARPANET/MILNET back in the late 70s and early 80s.  As such, BRL volunteered to host one of the original root servers - both to assist in the further development of DNS and to provide a root server for the MILNET in the event that MILNET had to be disconnected from the Internet.  Currently, ARL is home to one of the world's largest supercomputing facilities and resides on the high-speed Defense Research and Engineering Network (DREN), which ARL scientists helped design.  To this day, ARL continues to operate a root name server as a service to the Internet community.


H.ROOT-SERVERS.NET will be changing its IP addresses on December 1, 2015. Please click here for details.

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WARNING!! This Department of Defense computer system is subject to monitoring at all times.
Unauthorized access is prohibited by Public Law 99-474 (The Computer Fraud and Abuse Act of 1986).