The administrative contact associated with a domain name is the individual or contact responsible for handling the administrative aspects of a domain name, such as updating

A domain alias, which is specified in the C Name section of a zone file, is an extension to a domain name that allows you to create derivatives of the domain that can be pointed to the same or any other domain name on the Internet.

Anonymous FTP is a method of using the Internet FTP (File Transfer Protocol) to access publicly available files without identifying oneself. When using an FTP program to gain access to a server that allows Anonymous FTP, a user can enter "anonymous" as the FTP user name to log in.

Arbitration is a method of legal dispute resolution outside the court system where both parties agree in advance that the decision, known as an award, will be binding on both parties.

ARIN is an acronym for the American Registry for Internet Numbers, and administers the IP Address numbers for the Americas, the Caribbean and Sub-Saharan Africa.

The ASO, or Address Supporting Organization of ICANN, the Internet Corporation for Assigned Names and Numbers, is a review board that is affiliated with ICANN in terms of IP Address regulation.

Authentication is the process of verifying a person's identity, especially when related to certain rights or privileges on the Internet.

Authoritative Name Server(s) are the Name Server(s) on file with the registry for a specific domain name that are considered the authoritative source for that domain name's zone file information on the interInternet/ Please see Primary Server and sservSecondary Server.

Authorization is the act of assigning privileges or rights to an individual or organization, which then allows them to complete certain tasks.