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  1. What is a Domain Controller? | Definition from TechTarget

    Feb 27, 2025 · What is a domain controller? A domain controller is a server that processes authentication requests from users and computers within a computer domain. Domain …

  2. Domain controller - Wikipedia

    A domain controller (DC) is a server [1][2] that responds to security authentication requests within a computer network domain. It is a network server that is responsible for allowing host access …

  3. What is a Domain Controller? A Complete Guide - lepide.com

    May 5, 2025 · For businesses of all sizes, protecting and managing network resources is crucial in today’s linked digital environment. A key component of this task is the idea of a domain …

  4. What Is a Domain Controller? - IT Glossary | SolarWinds

    What Is a Domain Controller? A domain controller is a server computer that authenticates and validates user access on a network.

  5. What Is The Role Of A Domain Controller? - Cyberly

    A domain controller is the cornerstone of identity management in modern networks. It authenticates users, enforces policies, manages resources, and ensures secure, efficient …

  6. What is a domain controller? | Quest

    A domain controller (DC) is a special server that provides critical services like authentication and authorization for an Active Directory domain. More specifically, a domain controller is a …

  7. What is a Domain Controller? - Petri IT Knowledgebase

    Jan 26, 2022 · Domain controllers respond to security authentication requests from network endpoints, like servers and user workstations. Domain controllers are responsible for securely …

  8. What Is a Domain Controller? - phoenixNAP Blog

    Oct 15, 2025 · A domain controller (DC) centralizes and authenticates all access requests to network resources within the same domain. A DC is crucial to network security as it stores all …

  9. What Is a Domain Controller? Definition and Roles

    Oct 1, 2025 · Domain controller (DC) is a specialized server within a network domain responsible for security authentication, authorization, and enforcing policy for devices and user accounts. …

  10. What is a Domain Controller, When is it Needed + Set Up

    Aug 5, 2025 · When a user attempts to log in to the network, the domain controller authenticates their identity, granting access to authorized resources and services. It serves as the central …