I have a forward look up AD integrated zone (main one for my organization) which is currently set to "Non secure and secure" dynamic updates in DNS (Server 2008 R2). We have enabled "Name protection" in DHCP to prevent rouge devices taking over important server names but this requires DNS to be set to Secure only dynamic updates.
My question is can this be done without any distruptions? Will the existing records in DNS still be there? Will DHCP still be able to update DNS for domain computers? I can manually add the non domain ones to DNS. Can someone confirm that my intended change will not get rid of the exisitng records and cause more headaches. Thanks