This glossary was written and prepared by Blair Bergum of  DNSnews.net
For additions or corrections to this glossary, please send email to glossary at dnsnews dot net

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edge servers

are distributed cache servers (of a CDN) that are accessed through the DNS.

eDNS

Enhanced Domain Name System, is an independent global registry that provides an alternate root DNS system, that is authoritative, which is not endorsed or supported by the authoritative root that is operated by ICANN.

EFF

Electronic Frontier Foundation, an advocacy group concerned with the legal and social issues that surround the use of computers as a means of communication and the dissemination of information.

E-mail

Electronic mail, a method of exchanging electronic messages across a network.

ESI

Edge-Side Includes, similar to SSI, but edge servers, part of the CDN, dynamically insert content into webpages rather than the webserver doing it. ESI are more scalable than the traditional SSI because of the distributed architecture versus the single concentrated architecture of an SSI-based website.

etc/named.boot

see named.boot.

Ethernet

Is a network architecture defined by the IEEE standard 802.3 that allows for transmission of data using frame format protocols. The Ethernet architecture utilizes CSMA/CD technology.

ETSI

European Telecommunications Standards Institute. http://etsi.org

Eugene Kashpureff

founder of the Alternate Authoritative Root Name Server gTLD registry, the AlterNIC.

EUROPA

European Union, is the organization that provides information on European affairs, European integration, and European legislation currently in force or under discussion. http://europa.eu.int

experimental reource records

there are many experimental resource record types under development. Here is a list of some of these experimental records.

MB    Mail Box

MINFO    Mail Information

MR    Mail Rename

MB    Mail Box

AFSDB    Andrew File Database

ISDN    ISDN network Info

RP    Responsible Person

RT    Route Through

x25    X.25 address

Extensible Markup Language

See XML.

extension

is the portion of a domain name that is located at the far right from the right most period. Also known as the TLD.

extranet

a TCP/IP based network that connects partner companies with each other, or to its distributors, wholesalers, affiliates, and customers.