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In order to use Duo on the HPC systems you must enroll in the Duo service and register a device. The most convenient method for managing Duo, particularly on the HPC systems, is via Duo's app for smartphones and tablets (no phone number required and the app can be used internationally with or without Internet). The remainder of the documentation will refer to smartphones but information is also applicable to the Duo app on non-smartphone devices unless phone calls or SMS messages are involved. There is support for all, or most, types of smart phones and other mobile devices; see this page for more information. Please see the following page for setting up a smart phone for Duo:
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