Back in November we published a blog post on how to use CoreDNS instead of kube-dns in Kubernetes. Since then, we have advanced this functionality in CoreDNS dramatically. Take a look at the entry "CoreDNS for Kubernetes Service Discovery, Take 2" in the CoreDNS Blog for all the details.
Re: DDNS updates by a DHCP member to a DNS member. Does it use Bloxsync?
Does Infobloc DNS support empty mx records ? rfc7505
Re: GSS-TSIG DDNS updates between a DHCP member and a DNS member. Keytab only on DNS?