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Dan RiehlDan Riehl is President of The 400 School, Inc., a leading provider of technical training for IBM i systems. He is also President of the IT Security and Compliance Group, LLC, which provides security consulting, training, and software for IBM i. For more than 20 years, Dan has been a writer and technical editor for System iNEWS magazine, where he writes articles related to system security, system management, and other technical topics.

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