I'm looking for some more clarity on the whole child domain setup. Typically my customers all have an external .com or .net domain that is hosted at an external registrar such as GoDaddy or Network Solutions. In the past for internal network setups I have just used the domain.local deployment and managed split DNS when necessary. Is this still the preferred setup? Or should I consider the child domain setup where my internal domain is corp.domain.com?
If it is the latter, how do I go about the setup since my root/parent domain is hosted at an external resource that may or may not allow delegation.