SPN, short for service principal name, is the name by which a client uniquely identifies an instance of a service. If you install multiple instances of a service on computers throughout a forest, each instance must have its own SPN. A given service instance can have multiple SPNs if there are multiple names that clients might use for authentication. For example, an SPN always includes the name of the host computer on which the service instance is running, so a service instance might register an SPN for each name or alias of its host.
SPN – service principal name
Updated on:

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.
Related Articles
@ Sign
Pronounced at sign or simply as at, this symbol is used in e-mail addressing to separate the user' name from the user's domain name,...
Munging
(MUHN-jing) Munging (address munging), is the act of altering an email address posted on a Web page to make it unreadable to bots and...
How to Create an RSS Feed
In the second installment of RSS how-to, we look at some of the nonrequired (optional) channel and item tags, discuss RSS specifications in-depth and...
Dictionary Attack
(n.) (1) A method used to break security systems, specifically password-based security systems, in which the attacker systematically tests all possible passwords beginning with...
Definitions
ScalaHosting
ScalaHosting is a leading managed hosting provider that offers secure, scalable, and affordable...
Development
HRIS
Human resources information system (HRIS) solutions help businesses manage multiple facets of their...
Definitions
Best Managed Service Providers...
In today's business world, managed services are more critical than ever. They can...