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Technical innovation is not possible without standardisation. This also holds true for the operation of name servers. ironDNS® is fully compliant with the RFCs mentioned below.

Outside View

The publicly visible domain name server infrastructure is designed to implement the following standards:

  • RFC 1034 Domain Names — Concepts and Facilities
  • RFC 1035 Domain Names — Implementation and Specification
  • RFC 2181 Clarifications to the DNS Specification
  • RFC 2671 Extension Mechanisms for DNS (EDNS0)
  • RFC 2672 Non-Terminal DNS Name Redirection
  • RFC 3225 Indicating Resolver Support of DNSSEC
  • RFC 4033 DNS Security Introduction and Requirements
  • RFC 4034 Resource Records for the DNS Security Extensions
  • RFC 4035 Protocol Modifications for the DNS Security Extensions
  • RFC 4509 Use of SHA-256 in DNSSEC Delegation Signer (DS) Resource Records (RRs)
  • RFC 5155 DNS Security (DNSSEC) Hashed Authenticated Denial of Existence
  • RFC 5702 Use of SHA-2 Algorithms with RSA in DNSKEY and RRSIG Resource Records for DNSSEC


For the internal management of the infrastructure, the following standards are supported as well:

  • RFC 2181 Clarifications to the DNS Specification
  • RFC 1995 Incremental Zone Transfer in DNS
  • RFC 1996 A Mechanism for Prompt Notification of Zone Changes
  • RFC 2845 Secret Key Transaction Authentication for DNS (TSIG)
  • RFC 3007 Secure Domain Name System (DNS) Dynamic Update

Further interesting information around ironDNS®