Definition of authentication in The Network Encyclopedia.

What is Authentication (in computer networking)?

The process of validating users’ credentials to allow them access to resources on a network. On a Microsoft Windows NT or Windows 2000 network, authentication can be handled in one of two ways:

  • Logging on to a member server or workstation: Authentication is performed by the member server or workstation itself using its local Security Accounts Manager (SAM) database
  • Logging on to a domain in Windows NT and Windows 2000: Authentication is performed by a domain controller on the network. 

Authentication can be further classified according to how the credentials are passed over the network and include the following methods:

  • Anonymous access: This method is supported by Microsoft Internet Information Services (IIS) and allows anonymous users on the Internet access to Web content on your server. 
  • Basic Authentication: This method transmits passwords as clear text and is often used in UNIX networks and for File Transfer Protocol (FTP) services
  • Windows NT Challenge/Response Authentication: This is the standard secure authentication method for Windows NT domain controllers. 
  • Kerberos v5 Security Protocol: This is the standard secure authentication method for Windows 2000 domain controllers.

Authentication Server


Articles posted after being checked by editors.

Recent Content

link to Public Key Infrastructure (PKI)

Public Key Infrastructure (PKI)

Public Key Infrastructure, also known as PKI, is a set of services that support the use of public-key cryptography in a corporate or public setting. A public key infrastructure (PKI) enables key pairs to be generated, securely stored, and securely transmitted to users so that users can send encrypted transmissions and digital signatures over distrusted public networks such as the Internet.
link to Digital Signature

Digital Signature

Digital Signature is an electronic signature that you can use to sign a document being transmitted by electronic means such as e-mail. Digital signatures validate the identity of the sender and ensure that the document they are attached to has not been altered by unauthorized parties during the transmission.