Replying to mark TOTAL OF ALL PREVIOUS POSTS IN THIS DISCUSSION as the SOLUTION. But please continue to post any questions/comments.
The goal of this discussion is to provide a place for all things DNS with IDPA/PPDP. This will be a work in progress and we welcome questions and contributions from all. Lets get started... IDPA components use DNS as other systems do for name to IP resolution and for IP to name resolution. The DNS server that IDPA components use is initially configured during initial Deployment by Dell Professional Services. If, after Deployment, the DNS server that IDPA uses needs to change, see this KB: Integrated Data Protection Appliance: How to change DNS entries in a deployed IDPA [URL]   To be continued.... we welcome questions and contributions, and I will post more....   If you found this useful please give KUDOS to help others find the information also. thanks  
DNS - configuring and issues