Operational Criteria for Root Name Servers (RFC2010)
Original Publication Date: 1996-Oct-01
Included in the Prior Art Database: 2000-Sep-13
Internet Society Requests For Comment (RFCs)
B. Manning: AUTHOR [+2]
This document specifies the operational requirements of root name servers, including host hardware capacities, name server software revisions, network connectivity, and physical environment.
Network Working Group B. Manning
Request for Comments: 2010 ISI
Category: Informational P. Vixie
Operational Criteria for Root Name Servers
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
This document specifies the operational requirements of root name
servers, including host hardware capacities, name server software
revisions, network connectivity, and physical environment.
1 - Rationale and Scope
1.1. Historically, the name servers responsible for the root (".")
zone have also been responsible for all international top-level
domains (iTLD's, for example: COM, EDU, INT, ARPA). These name
servers have been operated by a cadre of highly capable volunteers,
and their administration has been loosely coordinated by the NIC
(first SRI-NIC and now InterNIC). Ultimate responsibility for the
correct operation of these servers and for the content of the DNS
zones they served has always rested with the IANA.
1.2. As described in [Postel96], many new TLD's may be created
shortly. Servers for all new and existing iTLD's will be subject to
the operational requirements given in [Postel96]. The set of servers
for the root (".") zone is likely to become disjoint from the set of
servers for any TLD or group of TLD's, including those maintained by
1.3. In spite of the similarities in operational requirements between
the servers for the iTLD's and the servers for the root (".") zone,
they are in fact different server sets with different administrators
and slightly different operational requirements. It is likely that
many contry code tld servers will have even more divergent
operational requirements. That said, the requirements set down in
this document could be successfully applied to any name server
(whether root, top level, or any other level), but may be more
draconian than necessary for servers other than those of the root
Disclaimer: The selection of name server locations and
administrators, and the procedures for addressing
noncompliance with these stated operational
requirements, are outside the scope of this document.
Definition: For the purpose of this document, the term "zone master"
shall be used to designate the administrative owner of
the content of a zone. This person is expected to have
final responsibility for the selection and correct
operation of all of the zone's servers. For the root
(".") zone, this is the IANA.
2 - Op...