Host Name

Why Trust Techopedia

What Does Host Name Mean?

A host name is a unique name or label assigned to any device that is connected to a specific computer network. It facilitates the differentiation of different machines or devices connected to the Internet, a network and/or both. Allotted and assigned host names are based on the naming system used.

Advertisements

A host name is also known as a hostname.

Techopedia Explains Host Name

A host name may be alphabetic or alphanumeric and include limited symbols that are specifically used to identify a particular network node or device. Depending on the naming system in use, a host name’s syntax and requirement vary. For example, when used in the Domain Name System (DNS) or for the Internet, a host name must include the top level domain name (TLD) and have a length between one and 63 characters.

The Internet Engineering and Taskforce (IETF) published specification RFC 1123, which allows numbers at the beginning of a host name. However, no symbols, with the exception of the hyphen, are allowed.

Advertisements

Related Terms

Margaret Rouse
Senior Editor
Margaret Rouse
Senior Editor

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.