Re:It's TCP vs. RPC All over Again
by vidarh on Thursday February 23, 2023 @01:48AM
(#34907584)
The DNS server was our own.
Writing an authoritative-only DNS server is trivial (few hundred lines), and since it knew it was always authoritative, it'd synthesise a SOA record for every zone it answered for.
The zones had a very minimal set of records: Either they had NS records pointing to where the user wanted the domain delegated, or to us. If they pointed to us they had an A and MX record which might point to us or to wherever the customer wanted.
It was not exposed only within the intranet (the service discovery DNS was exposed only via the internet; separate thing)
Writing an authoritative-only DNS server is trivial (few hundred lines), and since it knew it was always authoritative, it'd synthesise a SOA record for every zone it answered for.
The zones had a very minimal set of records: Either they had NS records pointing to where the user wanted the domain delegated, or to us. If they pointed to us they had an A and MX record which might point to us or to wherever the customer wanted.
It was not exposed only within the intranet (the service discovery DNS was exposed only via the internet; separate thing)