https://support.citrix.com/article/CTX235211/how-to-configure-netscaler-gateway-to-authenticate-using-mfa-nps-radius-server
https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfaserver-deploy
https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfa-nps-extension
