AAA (Authentication, Authorization, Accounting)

AAA stands for Authentication, Authorization, and Accounting, key processes in managing secure access to systems. Authentication verifies who you are, like entering a username and password. Authorization determines what you can do once logged in, such as accessing specific files or features. Accounting tracks your activity, recording details like login times and actions performed, for monitoring or billing purposes. Together, AAA ensures that only authorized users gain access, can do what they're permitted to, and their activities are logged for security and management. It’s essential for maintaining secure and efficient network or system operations.