A unidirectional network (also referred to as a unidirectional security gateway or data diode) is a network appliance or device allowing data to travel only in one direction, used in guaranteeing information security. They are most commonly found in high security environments where they serve as connections between two or more networks of differing security classifications. A means to directly ingest data pushed from an external source into a file/database in the Data Landing Zone of a workspace in a safe and easy way.

Reference: en.wikipedia.org/wiki/Unidirectional_network
Source: NFU - D4LS versie 0.8 van 24-10-2016 
0.1 5/23/17 ​

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