If you have multiple DNS entries for the same host, spread on different zones on Route53, resolutions only consider the zone that maches with the highest number of DNS levels.
For instance, …
At work we use CoreDNS to forward queries to the VPC resolver, as we run most of our services in Kubernetes. What that means is that we are routing all DNS queries through a few machines, and we …
A EC2 instance that you launch is only allowed to receive traffic if the destination IP matches what the DHCP server assigned. Similarly, a EC2 instance is allowed to use a certain IP as source only …