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Windows 2000 Security

  • Authentication

  • Local security

  • File system security

  • Applications and security

  • Network security

Authentication

Users are security principals. In other words, they have the ability to create and access resources on Windows 2000 systems. A security principal, therefore, must be positively identified before being given access to any resource. This process is known as authentication. After the user has been authenticated, an identity known as an access token is attached to the user's shell process. The access token contains the user's security ID (SID), a list of groups to which the user belongs, and a list of abilities or privileges that have been enabled and disabled for the user on the computer. When a user attempts to access a remote Windows 2000 computer on a network, another access token for the user is created and attached to the user's session on the remote computer. The user's access token is also attached to any other processes that the user starts on the computer.


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