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The original DNS protocol had limited provisions for extension with new features. In 1999, Paul Vixie published in RFC 2671 (superseded by RFC 6891) an extension mechanism, called Extension Mechanisms for DNS (EDNS) that introduced optional protocol elements without increasing overhead when not in use. This was accomplished through the OPT ...
Specified as part of the Sender Policy Framework protocol as an alternative to storing SPF data in TXT records, using the same format. It was discontinued in RFC 7208 due to widespread lack of support. [19] [20] NINFO 56 — Used to provide status information about a zone. Requested for the IETF draft "The Zone Status (ZS) DNS Resource Record ...
Extension Mechanisms for DNS (EDNS) is a specification for expanding the size of several parameters of the Domain Name System (DNS) protocol which had size restrictions that the Internet engineering community deemed too limited for increasing functionality of the protocol.
Secure DNS: RFC 2246 : The TLS Protocol Version 1.0: January 1999: TLS 1.0: RFC 2251 : Lightweight Directory Access Protocol (v3) December 1997: LDAP v 3: RFC 2252 : Lightweight Directory Access Protocol (v3): Attribute Syntax Definitions: RFC 2253 : Lightweight Directory Access Protocol (v3): UTF-8 String Representation of Distinguished Names ...
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.
BIND, the most popular DNS name server (which includes dig), incorporates the newer DNSSEC-bis (DS records) protocol as well as support for NSEC3 records. Unbound is a DNS name server that was written from the ground up to be designed around DNSSEC concepts. mysqlBind, the GPL DNS management software for DNS ASPs, now supports DNSSEC.
DNS zone transfer, also sometimes known by the inducing DNS query type AXFR, is a type of DNS transaction. It is one of the many mechanisms available for administrators to replicate DNS databases across a set of DNS servers .
The most important function of DNS servers is the translation (resolution) of human-memorable domain names and hostnames into the corresponding numeric Internet Protocol (IP) addresses, the second principal name space of the Internet which is used to identify and locate computer systems and resources on the Internet.