What exactly (but briefly) is a DNS glue record?
migrated from unix.stackexchange.com Sep 9 '11 at 4:24
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
There's the trick. The TLD's servers will delegate to the DNS servers in the whois record - but they're within
What glue records do is to allow the TLD's servers to send extra information in their response to the query for the
There is a precise (and concise) explanation on wikipedia.
I requested that this answer be merged in from a duplicate question, as the existing answers did not explain the role of the
To see how it works, type this:
This will trace the nameserver authority starting from the root servers (
Note that the authoritative nameservers for
When you ask a nameserver to supply the list of nameservers for a domain, they will often supply a list of