BIND9 Documentation for SOA resource record timing fields?
I've been trying to make use of the documentation bundled with packages as much as possible to reduce my reliance on external resources but in this case I haven't been able to find anything in the BIND documentation for the fields relating to TTL etc on SOA records.
SERIAL ; serial number in YYYYMMDDRR REFRESH ; time to refresh RETRY ; time to retry EXPIRE ; time to expire NEGATIVE TTL ; negative ttl
It's well known that these fields are required but where is that defined by BIND?
P.S The wikipedia entry for SOA is helpful for a concise definition https://en.wikipedia.org/wiki/SOA_record