F5 DNS Wide IP and Express Questions
Hi everyone, I'm looking for clarification on a couple of things related to the F5 DNS and Listener, and a monitoring question. Simple question, if I have an FQDN (Wide IP) configured, but disabled, how does the DNS Listener handle such queries? Would the F5 simply move on to DNS Express for an answer in such a situation where the matching Wide IP is disabled on the GTM/DNS? I'm curious as to how the F5 DNS handles queries which have matching zone records for the primary domain, but not the sub domain. For example, if I have a zone recorded created only for dev.f5.com and a DNS query is sent to the F5 for labs.dev.f5.com, would the F5 find a match and respond from the dev.f5.com zone record? May I know what the best method is (which doesn't require configuration changes) to monitor and track queries and responses sent to and from the F5. For eg, if I send a DNS query to the F5 for name resolution and load balancing, I would like to know how the F5 DNS handled such a request in detail (how it determined the resolution at the DNS and Load Balancing levels) Thank you!