Documents related to 'resource records'
1992, RFC1348: DNS NSAP RRs
2000, RFC2929: Domain Name System (DNS) IANA Considerations
2005, RFC4074: Common Misbehavior Against DNS Queries for IPv6 Addresses
2006, RFC4641: DNSSEC Operational Practices
2013, RFC6891: Extension Mechanisms for DNS (EDNS(0))