Add TrueYou Duo information.

content/accounts/setting_up_and_using_duo.md

@@ -4,7 +4,7 @@ description = "Duo Setup Instructions"
 weight = "8"
 +++
 
-##### Use of Duo two-factor authentication (https://www.duosecurity.com) is required for access to HCC resources.
+##### **Use of Duo two-factor authentication (https://www.duosecurity.com) is required for access to HCC resources.**
 
 Users will connect via SSH and enter their username/passwords as usual. One additional
 authentication step through Duo is then needed before the login is completed. This 
@@ -22,6 +22,8 @@ smartphone or purchase a YubiKey USB device.
 
 ### Smartphone
 
+If you *are not* currently using Duo with your TrueYou account:
+
 1.  Install the free **Duo Mobile** application from the
     [Google Play Store](https://play.google.com/store/apps/details?id=com.duosecurity.duomobile), [Apple App Store](https://itunes.apple.com/us/app/duo-mobile/id422663827), or [Microsoft Store](https://www.microsoft.com/en-us/store/apps/duo-mobile/9nblggh08m1g)
 2.  Visit one of the following locations.  **Bring your smartphone and a valid photo ID** such as your university ID card or drivers license.
@@ -30,11 +32,18 @@ smartphone or purchase a YubiKey USB device.
     2.  Visit Information Technology Services [115 Otto Olsen, UNK](http://www.unk.edu/campus-map/?q=m15)
         in-person and ask for HCC identity verification.
 
-Faculty/staff members with a verified NU telephone number can enroll by
-phone. If you would like an HCC staff member to call your NU telephone
-number to enroll, please email
-{{< icon name="envelope" >}}[hcc-support@unl.edu] (mailto:hcc-support@unl.edu) 
-with a time you will be available.
+    Faculty/staff members with a verified NU telephone number can enroll by
+    phone. If you would like an HCC staff member to call your NU telephone
+    number to enroll, please email
+    {{< icon name="envelope" >}}[hcc-support@unl.edu] (mailto:hcc-support@unl.edu)
+    with a time you will be available.
+
+If you *are* currently using Duo with your TrueYou account:
+
+1.  You can request to use the same phone for HCC's Duo as you are using for TrueYou.
+    Please contact [hcc-support@unl.edu] (mailto:hcc-support@unl.edu) with the request
+    using the email address associated with your TrueYou account. In the email, include
+    the last 4 digits of the phone number for verification.
 
 ### YubiKeys