Problem solved. Finally. Apparently Register.com did not update the glue records for ns1 and ns2.faithhiway.com despite our initial request for them to do so (and their confirmation that it had been done). The tests that I posted above in my update showed that despite their confirmation of the update, the glue records were not propagating … Read more
Subordinate identification Apex level NS records are used by a master server to identify its subordinates. When data on an authoritative nameserver changes, it will advertise this via DNS NOTIFY messages (RFC 1996) to all of its peers on that list. Those servers will in turn call back with a request for the SOA record … Read more
This is obviously a staged Q&A, but this tends to confuse people often and I can’t find a canonical question covering the topic. dig +trace is a great diagnostic tool, but one aspect of its design is widely misunderstood: the IP of every server that will be queried is obtained from your resolver library. This … Read more
Glue records only ever exist in the parent zone of a domain name. Hence in the case of your example.org domain name, first find the .org name servers: % dig +short org. NS a0.org.afilias-nst.info. a2.org.afilias-nst.info. b0.org.afilias-nst.org. b2.org.afilias-nst.org. c0.org.afilias-nst.info. d0.org.afilias-nst.org. Then, for as many of these as you feel like testing, explicitly ask those name servers … Read more
A glue record is a term for a record that’s served by a DNS server that’s not authoritative for the zone, to avoid a condition of impossible dependencies for a DNS zone. Say I own a DNS zone for example.com. I want to have DNS servers that’re hosting the authoritative zone for this domain so … Read more