Logging in to network resources may not be a consistent process, as different devices use different authentication techniques. Access control in enterprise organizations typically relies on Authentication, Authorization, and Accounting (AAA) services. AAA offers the following services:
- Verifies user identity and credentials (authentication)
- Provides access to network resources (authorization)
- Logs user access (accounting)
The general concept behind AAA is centralizing all these actions under a single system and making it easier for the user to authenticate via a single username and password. AAA solutions can use an intermediate authenticator device (e.g . . .
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