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This article explains how to get passcodes via text message (SMS) to use for Duo authentication.

This page provides instructions for getting started with Duo, UO's two-step login service.

This page provides answers to frequently asked questions about two-step login (Duo).

How to register, update, and remove smart devices and landlines from your two-step login account

This article contains a list of UO services that are protected by two-step login (Duo).

Instructions for reconnecting Duo with your cell phone after replacing it.

The Duo Mobile application on your cellphone can be used to generate a list of Two-Step Login passcodes.

Information about the Duo Mobile smartphone app.

Watch videos about Duo; topics include general information, a demo, and a registration walkthrough

Instructions for setting up a HOTP for Two-Step Login.

A guide to all the ways to complete a two-step login

Temporary bypass codes allow you to two-step login without your registered device(s)

Instructions for setting up a YubiKey for Two-Step Login with Yubico OTP.

This article explains how to use Duo as a second-factor when authenticating into Shibboleth services.

Instructions for two-step login with the Duck ID Admin Console (Trident)

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