There are a significant number of RFCs that define the DNS or are relevant to it as befits its status as a core Internet technology. The main repository for RFCs is maintained by the IETF (
http://www.ietf.org/rfc.html), which provides a keyword-searchable list (
https://datatracker.ietf.org/doc/) covering both published and draft RFCs. There are two IETF Working Groups (WGs) concerned with developing DNS RFCs. The
dnsext WG (
http://datatracker.ietf.org/wg/dnsext) is primarily concerned with development of DNS protocol standards and extensions and the
dnsop WG (
https://datatracker.ietf.org/wg/dnsop) is concerned with operational procedures and practices.
The following is the current list of DNS or DNS-related RFCs and their status. ...