Installing Duo Authentication for RDP Windows 2012

#1

Hi, we are in the process of evaluating Duo to protect RDP sessions to Azure hosted web servers, these web servers are currently locked down to comply with PCIDSS. We have hit an issue straight away with installing the Duo software on the web servers themselves.
Duo%20Error

I believe this is connected with TLS 1.0 not being enabled on the server, could someone advise the necessary steps to allow us to install the Duo application.

Many Thanks

#2

Hey @markc,
We’re using .NET to do this check which isn’t always the most aware of system setting for TLS.
There are a few ways to handle this:

1.) Run a silent install

2.) Or you use RegEdit to edit TLS setting for .NET

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319]
“SchUseStrongCrypto”=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319]
“SchUseStrongCrypto”=dword:00000001

#3

Thanks Patrick

Silent install worked a treat.

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