W 2012 R2 - Best Practices for DNS Settings on the Cluster NIC Properties

Hi there!

We have a Windows 2012 R2 cluster node with 3 NICs:

1. NIC1 (External Public)
2. NIC2 (Migration)
3. NIC3 (Cluster Heartbeat)

My inquires are related to the Migration andCluster Heartbeat NICs only

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Could you please advise, whether as a best cluster configuration practice:

1. We should uncheck TCP/IP v6 if we are using only IPv4.
2. We should uncheck "Append parent suffixes of the primary DNS suffix"?
3. We should uncheck "Register this connection's addresses in DNS" if we are not using DNS servers?
4. Any links to the related documentation would be highly appreciated!

Many thanks for your help, in advance!