How to Be OT Cybersecurity Professional by Alqurashi Nebras;

Author:Alqurashi, Nebras;
Language: eng
Format: epub
Publisher: Austin Macauley Publishers
Published: 2023-07-08T00:00:00+00:00

Datagram mode: connectionless, small messages are sent independently, and Applications are responsible for error detection and recovery. The application will listen on UDP port 138 to receive NetBIOS datagrams; the datagram service sends/receives/broadcasts.

When monitoring OT Network traffic, expect to see NetBIOS traffic; identifying and justifying this type of traffic is essential; if, after review, there is no known application to use NetBIOS, then it’s better to be restricted, and of course, if it’s known to be used, restrict on a mandatory basis and zero-trust.

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