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Active Directory is a directory service developed by Microsoft for Windows domain networks. It provides authentication, authorization, and other identity-related services, such as domain controllers, certificate services, federation services, and rights management services.
A Security Identifier (SID) is a unique, immutable identifier of a user, user group, or other security principal in Windows NT operating systems. Learn how SIDs are formatted, assigned, resolved, and used for access control lists, security audits, and troubleshooting.
Active Server Pages (ASP) is a Microsoft server-side scripting language and engine for dynamic web pages. Learn about its history, architecture, objects, and examples of ASP files with the .asp extension.
LDAP is a standard protocol for accessing and maintaining distributed directory information services over IP networks. It uses port 389 or 636 for secure communication and supports various operations such as search, add, delete, modify and compare.
Tor is a free overlay network for enabling anonymous communication, based on onion routing, developed by the U.S. Naval Research Laboratory and later by The Tor Project. Tor is used for various legal and illegal purposes, such as circumventing censorship, protecting privacy, and accessing the dark web.
Learn about the codenames Microsoft gives to its products before they are released, such as Windows 2000, codenamed Whistler, and Windows Vista, codenamed Longhorn. Whistler Blackcomb was the codename for Windows XP, named after a ski resort in Canada.
Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to multiple software systems. Learn about the advantages, drawbacks, and security issues of SSO, as well as related concepts such as same-sign on, federated authentication, and social logons.
Microsoft Entra ID is a cloud-based identity and access management solution that offers authentication and authorization services to various Microsoft services and third-party services. It was formerly known as Azure Active Directory and renamed in July 2023.