In Cisco ISE, what does TACACS+ primarily provide?

TACACS+ (Terminal Access Controller Access-Control System Plus) primarily provides authentication, authorization, and accounting capabilities, which are crucial for secure access control in network environments. Authentication verifies the identity of users or devices attempting to gain access to a network resource. Once identity is confirmed, TACACS+ enforces authorization policies to ensure that users or devices have the appropriate permissions to access specific resources or perform particular actions. Lastly, accounting involves tracking user activities and logging them for auditing, monitoring, and reporting purposes.

This comprehensive approach helps organizations maintain tight security controls and manage user access effectively, ensuring that only authorized personnel can access sensitive network resources. This functionality makes TACACS+ a vital component in the framework of network security and user management within Cisco Identity Services Engine (ISE) deployments.