What types of external authentication servers are supported by FortiAnalyzer?

FortiAnalyzer supports a variety of external authentication servers to enhance its security and access control mechanisms. The correct answer highlights the inclusion of RADIUS, LDAP, TACACS+, and PKI as supported external authentication servers.

Each of these authentication methods serves different purposes and offers unique advantages. RADIUS (Remote Authentication Dial-In User Service) is widely used for user authentication and accounting, particularly in network access scenarios. It enables centralized management of authentication, which is crucial for enforcing security policies across different devices.

LDAP (Lightweight Directory Access Protocol) is utilized for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network. It is commonly used to integrate with directory services like Microsoft Active Directory, facilitating authentication and authorization processes within an established user directory.

TACACS+ (Terminal Access Controller Access-Control System Plus) provides detailed AAA (Authentication, Authorization, and Accounting) services, specifically for network devices. It operates over TCP, which often leads to more secure and reliable communication.

PKI (Public Key Infrastructure) is another method supported by FortiAnalyzer, which uses a combination of hardware, software, policies, and standards to create a secure environment for the management of digital certificates, authentication, and encryption.

The combination of these authentication methods allows