Authentication is one of the essential components of security. It is one part of the concept known as AAA services. AAA services stands for authentication, authorization, and accounting.
- Authentication is the process of claiming an identity then proving that you own that claimed identity.
- Authorization is the mechanism to control what you can access or do.
- Accounting, or auditing, is the recording of events into a log in order to review the activities against the rules and policies in order to detect violations or confirm compliance.
In this guide, we’ll cover each of these authentication types, how they work, and why you should consider using them.