App proxy external URL access




If a user has access to an on-prem app that is published via App Proxy using passthrough authentication, can the user access the external URL if they are not assigned the app in Azure AD?


Many thanks

1 Reply
best response confirmed by stromnessian (Contributor)

Hi @stromnessian 

Not sure if you've already gotten your answer but I do have an App Proxy with passthrough authentication that is operational even if they are not assigned the app in Azure AD. My understanding is that:

- you would only need to assign the app in Azure AD if you choose your App Proxy Pre Authentication method to "Azure Active Directory"

- passthrough authentication bypasses Azure AD

I've also stumbled upon this really helpful video to understand how both app proxy authentications work:


Good luck!