Final answer:
In Identity and Access Management, TACACS+ is a widely used AAA system for network devices, with AAA standing for Authentication, Authorization, and Accounting. TACACS+ provides a centralized method for securing access to network equipment such as routers and switches.
Step-by-step explanation:
In Identity and Access Management, TACACS+ is a common AAA system for network devices. AAA stands for Authentication, Authorization, and Accounting, which are core functions in managing access to network resources. Authentication is the process of verifying the identity of a user or device, Authorization determines what an authenticated user is allowed to do, and Accounting keeps track of what actions the user or device has performed.
Implementing a robust AAA system helps in enhancing network security by ensuring only authorized users can access the network and by monitoring their activities. TACACS+, which stands for Terminal Access Controller Access Control System Plus, is one such protocol that provides a centralized approach to managing the security of a network. It is commonly integrated into enterprise networks to control access to routers, switches, and other network equipment, enforcing a security policy across the entire network infrastructure.