InformationDo not bind to non-loopback insecure addresses.
If you bind the apiserver to an insecure address, basically anyone who could connect to it over the insecure port, would have unauthenticated and unencrypted access to your master node. The apiserver doesn't do any authentication checking for insecure binds and neither the insecure traffic is encrypted. Hence, you should not bind the apiserver to an insecure address.
SolutionEdit the API server pod specification file '/etc/kubernetes/manifests/kube-apiserver.yaml' on the master node and remove the '--insecure-bind-address' parameter.