I have found a caveat on the linux side. If you su to switch user the user that gets the push notification is the person that is currently logged on not the user that you are switching to.
Otherwise, I have found duo to be the easiest and quickest M...
I’m doing it like you are but I only have one duo proxy. I was having timing issues but I solved them with adjusting my radius timeout on the ASA. Though it sounds like my timing issues arent the same as your timing issues. The timing issues I was...
Thanks for the guide, that looks like it is using the same workflow as Diagram 1. I will continue to use that method till I have more time to look into it, since it is working. Thank you for providing what resources you have available.