Introduction
2-factor Authentication, also known as Multi-Factor Authentication is a security measure that effectively proves that the person accessing your accounts is you, and not someone who has fraudulently obtained your password. Enrollment in Duo 2-factor authentication (2FA) is required to log into many Virginia Tech Web-based systems. To use websites and services that use Virginia Tech’s Login service, you are required to authenticate with a second factor.
Contents
DUO App Alternatives
- What if I Don't Want the Duo App on My Phone?
- Understanding YubiKey and D-100 Hardware Tokens for Duo 2-Factor Authentication
- Why Do I Get the D-100 Incorrect Passcode or Token Out of Sync Error Message?
- How Do I Rename a YubiKey, D-100, or Software Token?
Related Links - DUO Support [Non-VT]
Frequently Asked Question(s)
What if I Don't Want the Duo App on My Phone?
Hardware fobs and tokens provide this functionality without adding an app to your phone.
Also see How Many Devices/Factors Should I Enroll?
Understanding YubiKey and D-100 Hardware Tokens for Duo 2-Factor Authentication
KB0010965- Understanding YubiKey and D-100 Hardware Tokens for Duo 2-Factor Authentication
Why Do I Get the D-100 ‘Incorrect Passcode’ or ‘Token Out of Sync’ Error Message?
Tokens can become out of sync when the token is used to generate multiple codes but is not used to authenticate. Pressing the button repeatedly without using a code to log in may cause problems.
To fix this problem, follow the directions at Resync D-100.
How Do I Rename a YubiKey, D-100, or Software Token?
Yubikeys can be renamed by selecting "Other options" and "Manage Devices" during Duo login. The Duo system does not allow you to rename any D-100 or software token since each token is assigned a unique set of characters.