Putting it all together – Citrix XenDesktop, ADFS, Azure MFA, NetScaler Unified Gateway and Citrix FAS – Part 4

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Previous Articles in this series

Part 1 – ADFS

Part 2 – Citrix FAS and StoreFront

Part 3 – NetScaler Unified Gateway and NetScaler ADFS Proxy

In Part 4 – Microsoft Azure Multi Factor Authentication I am going to walk you through setting up Microsoft Azure MFA and integrating it with your ADFS infrastructure to provide secure 2 factor authentication to your apps and desktops.

Lets get going..

First thing you will need to do is log into your “old” Microsoft Azure Portal: https://manage.windowsazure.com

On the left navigate down to Active Directory

At the top click on Multi Factor Auth Providers

Then on the bottom of the screen click to create a new provider if one does not already exist

Give it a name, pick your licensing method and select not to link a directory unless you have one you are wanting to link in

Once created you should see your provider listed and active

At the bottom you can now click on Manage – this will open up the MFA management portal

Once in the new portal click on Downloads

Then download the MFA Server software and save it to a central location you can access from your ADFS Server

NOTE: The MFA Server software is being installed on the ADFS Server we built earlier in this series.  We can push it onto a seperate server but for the purpose of this blog series and simplicity I will put it on the same server as ADFS

Log into the ADFS Server and launch the installer you downloaded earlier

You will be prompted to install the pre-reqs

Let these run and make sure that they install correctly

Next pick the destination you want MFA installed to

Click next and wait for the install to complete

The setup will prompt you for the first run wizard – click Next and you will be asked for an activation e-mail address and password.

Switch back to your MFA management portal and click on Generate Credentials

Copy and paste these into the MFA First Run Wizard to activate the server

Wait for this to complete

Next you will be asked for the group you wish to add the MFA Server to.  In this example I am going to create a new group – however you may wish to add this to your existing MFA Server group

Select to enable replication between servers, this will enable config replication should you add servers to the group at a later date for high availability

Leave Active Directory and Certificates selected

Add the host MFA Server to the Phone Factor Admins group in Active Directory – you will need to be logged into the ADFS Server as a user that has the rights to perform this action

Click next to generate the self signed certificates to enable cert based replication

Select RADIUS as a MFA Provider

Enter the SNIP for your NetScaler and put in a Complex Shared Key

Select Windows Domain as the RADIUS Target

Click Next

Then reboot to complete the first run configuration

Once the server is back up and running open up the Azure MFA Server Config Client and if you select the status option on the right you should see your new server Online and Running and listed as the Master

Next you will nee to add the users you want to be able to use the MFA Service – do do this head over the the users section

Click to import a user from the Active Directory – find the users you wish to use and select import

NOTE: If the user does not have a phone number present in their Active Directory account MFA will import the user but they will be disabled and not able to use MFA

Click to edit the user

Make sure the user has a phone number and that they are enabled

Once enablked click the user and click on test user

Enter the password

Check your phone and follow the voice prompts to complete your authentication

Check for a successful authentication

Next we need to install the ADFS Connector for Azure MFA.  Head over to the ADFS section and click on install ADFS Adapter once you have selected the options you want available for your users.  I normally disable allow self enrolment (although not shown below as I forgot in this occasion!)

Click Next to start the install

Wait for it to complete successfully

Next we need to enable this within the ADFS Console – open it up and navigate to Authentication Policies

On the right you will see the Multi Factor Authentication Options.  Click on Edit

Enable MFA for BOTH internal and External connections and select the Azure Multi Factor Authentication Server

NOTE: Will will be looking at disabling this for internal users and enabling SSO in the next post in this series

That’s it – our ADFS Service should now use Azure MFA for ALL authentications

Lets test internally

Navigate to your Unified Gateway

Enter Credentials

Answer Phone Call and complete authentication

Apps and Desktops Available

Now for External Testing

Nagivate to your Unified Gateway and enter Credentials (NOTE the different login prompts)

Complete the authentication using the phone

Apps and Desktop available!

So, that’s it.  Next we will be looking at providing content aware login for internal and external access as well as providing SSO for internal resources.

Part 5 – Context Aware Logins – Single Factor Internal and MFA External

Laters,

b@m