AAA stands for: AUTHENTICATION, AUTHORIZATION and Accounting

Authentication:Authentication is the process, provide credential to the user, to Login on Servers or Devices with user ID and Password. Authenticate individual user to access Network or Server.

Authorization:Authentication is the process, Allow specific services or resources to the authenticate users. Means Which services user can access from server, such as – Read only, read write ETC.

Accounting:Accounting is the process, Keeping the track of user activity after authenticate and authorized, Means that what task DONE by user, will go to the user account. Accounting user for audit PURPOSE.

AAA stands for: Authentication, authorization and Accounting

Authentication:Authentication is the process, provide credential to the user, to Login on Servers or Devices with user ID and Password. Authenticate individual user to access Network or Server.

Authorization:Authentication is the process, Allow specific services or resources to the authenticate users. Means Which services user can access from server, such as – Read only, read write etc.

Accounting:Accounting is the process, Keeping the track of user activity after authenticate and authorized, Means that what task done by user, will go to the user account. Accounting user for audit purpose.