Search28 Results

How to use Duo two-step login with Linux/Unix shell servers.
How to replace a phone used for Duo two-step authentication.
How to use Duo with an offline cell phone.
Troubleshoot common Duo login issues.
How to get a temporary Duo code ahead of time.
How to add, remove, reactivate or deactivate Duo devices.
Can I opt out of Duo?
Get signed up for Duo two-step login!
Troubleshoot problems installing the Duo Mobile app.
What to do if you forgot your Duo device.
How to use the Duo 12-hour "remember me" feature.
Using Duo with a mobile device is the recommended option.