Duo Two-Factor Authentication Configuration Properties
Advanced configuration properties for Duo 2FA
The API hostname, integration key, and secret key are provided for you by Duo when you registered Guacamole within Duo's "Admin" panel. Each of these values is required and is generated by Duo.
An arbitrary and random key must be provided for communicating with the Duo service. This key MUST be manually generated and MUST BE AT LEAST 40 CHARACTERS.
Any random value containing at least 40 characters will suffice. To quickly grab 40 random characters from
$ tr -dc 'a-zA-Z0-9' < /dev/random | head -c40; echo