Merge pull request #78991 from b-juche/live-update-06-06-dns-update

Modifying DNS descriptions; minor section restructure

Author: atookey

articles/azure-netapp-files/azure-netapp-files-create-volumes.md

@@ -13,7 +13,7 @@ ms.workload: storage
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: conceptual
-ms.date: 4/23/2019
+ms.date: 6/6/2019
 ms.author: b-juche
 ---
 # Create a volume for Azure NetApp Files
@@ -85,45 +85,47 @@ A subnet must be delegated to Azure NetApp Files.
 
 Azure NetApp Files supports SMBv3 volumes. You need to create Active Directory connections before adding an SMB volume. 
 
-### Create an Active Directory connection
-
-1. Ensure that you meet the following requiements: 
-
-    * The admin account you use must be able to create machine accounts in the organizational unit (OU) path that you will specify.
-    * Proper ports must be open on the applicable Windows Active Directory (AD) server.  
-        The required ports are as follows: 
-
-        |     Service           |     Port     |     Protocol     |
-        |-----------------------|--------------|------------------|
-        |    AD Web Services    |    9389      |    TCP           |
-        |    DNS                |    53        |    TCP           |
-        |    DNS                |    53        |    UDP           |
-        |    ICMPv4             |    N/A       |    Echo Reply    |
-        |    Kerberos           |    464       |    TCP           |
-        |    Kerberos           |    464       |    UDP           |
-        |    Kerberos           |    88        |    TCP           |
-        |    Kerberos           |    88        |    UDP           |
-        |    LDAP               |    389       |    TCP           |
-        |    LDAP               |    389       |    UDP           |
-        |    LDAP               |    3268      |    TCP           |
-        |    NetBIOS name       |    138       |    UDP           |
-        |    SAM/LSA            |    445       |    TCP           |
-        |    SAM/LSA            |    445       |    UDP           |
-        |    Secure LDAP        |    636       |    TCP           |
-        |    Secure LDAP        |    3269      |    TCP           |
-        |    w32time            |    123       |    UDP           |
+### Requirements for Active Directory connections
+
+ The requirements for Active Directory connections are as follows: 
+
+* The admin account you use must be able to create machine accounts in the organizational unit (OU) path that you will specify.  
+
+* Proper ports must be open on the applicable Windows Active Directory (AD) server.  
+    The required ports are as follows: 
+
+    |     Service           |     Port     |     Protocol     |
+    |-----------------------|--------------|------------------|
+    |    AD Web Services    |    9389      |    TCP           |
+    |    DNS                |    53        |    TCP           |
+    |    DNS                |    53        |    UDP           |
+    |    ICMPv4             |    N/A       |    Echo Reply    |
+    |    Kerberos           |    464       |    TCP           |
+    |    Kerberos           |    464       |    UDP           |
+    |    Kerberos           |    88        |    TCP           |
+    |    Kerberos           |    88        |    UDP           |
+    |    LDAP               |    389       |    TCP           |
+    |    LDAP               |    389       |    UDP           |
+    |    LDAP               |    3268      |    TCP           |
+    |    NetBIOS name       |    138       |    UDP           |
+    |    SAM/LSA            |    445       |    TCP           |
+    |    SAM/LSA            |    445       |    UDP           |
+    |    Secure LDAP        |    636       |    TCP           |
+    |    Secure LDAP        |    3269      |    TCP           |
+    |    w32time            |    123       |    UDP           |
 
+### Create an Active Directory connection
 
 1. From your NetApp account, click **Active Directory connections**, then click **Join**.  
 
     ![Active Directory Connections](../media/azure-netapp-files/azure-netapp-files-active-directory-connections.png)
 
 2. In the Join Active Directory window, provide the following information:
 
-    * **Primary DNS**   
-        This is the domain controller IP address for the preferred Active Directory Domain Services for use with Azure NetApp Files. 
-    * **Secondary DNS**  
-        This is the domain controller IP address for the secondary Active Directory Domain Services for use with Azure NetApp Files. 
+    * **Primary DNS**  
+        This is the DNS that is required for the Active Directory domain join and SMB authentication operations. 
+    * **Secondary DNS**   
+        This is the secondary DNS server for ensuring redundant name services. 
     * **Domain**  
         This is the domain name of your Active Directory Domain Services that you want to join.
     * **SMB server (computer account) prefix**