For a single FQDN deployment, configure DNS as follows:
For external DNS configuration, have a single FQDN record, for example, webservices.company.com, that points to the reverse proxy or load balancer interface for external traffic.
For internal DNS configuration, have a single FQDN record, for example, webservices.company.com, that points to the reverse proxy or load balancer interface for internal traffic.
For a multiple FQDNs deployment, configure DNS as follows:
For external DNS configuration, each FQDN points to the external load balancer interface.
For internal DNS configuration, each FQDN points to the individual server components.