After a case of installation of 2 fortimanagers in HA mode I ve realized
that when Primary Node is lost or shutdown Secondary node is not
automatically promotes as Primary.So I ve created a lab with 2
Fortimanagers and 1 Fortigate in order to explore...
Do you mean One time Password (OTP) ? that means a token is generated
and send to user via email or sms or OTP mobile applications (like
fortitoken, googleauthenticator). or something like
this:[link]http://cookbook.fortinet.com/guest-wifi-accounts/[...