Duo Unix

The authentication prompt lets you choose how to authenticate each time you log in.

Type in a passcode — either generated with Duo Mobile, sent via SMS, generated by your hardware token, or provided by an administrator — or choose another authentication option.

Option Description
Duo Push Pushes a login request to your phone (if you have Duo Mobile installed and activated on your iPhone, Android, or BlackBerry device). Just review the request and tap "Approve" to log in.
Phone call Authenticate via phone callback.
SMS passcodes Get a new batch of SMS passcodes.