Effective Credential Management with TACACS+ for Centralized Control and Accountability

Which of the following can be used to centrally manage credentials for various types of administrative privileges on configured network devices? A)SSO. B)TACACS+. C)Zero Trust. D)Separation of duties. E)Multifactor authentication.

The correct answer is B) TACACS+.

TACACS+ (Terminal Access Controller Access Control System Plus) is a network security protocol that provides centralized authentication, authorization, and accounting (AAA) services for managing administrative privileges on network devices. It allows network administrators to control who can access network devices, what actions they can perform, and provides accountability for those actions.

TACACS+ helps in centrally managing credentials by storing user credentials, such as usernames and passwords, in a secure central server. Network devices authenticate users against this central server when they try to access the devices. This centralization ensures that administrative privileges are managed consistently across all network devices.

Some benefits of using TACACS+ for credential management include:

1. Centralized Management: TACACS+ enables the central management of credentials, making it easier to enforce security policies across multiple network devices.

2. Granular Access Control: TACACS+ allows granular control over who can access network devices and what actions they can perform. This helps in implementing the principle of least privilege and reducing the risk of unauthorized access.

3. Accountability and Logging: TACACS+ provides detailed logs and accounting information, allowing administrators to track and audit the actions performed by users on network devices.

4. Scalability: TACACS+ can handle large-scale networks and supports the authentication and authorization of a large number of users.

Other options mentioned in the question are related to different security concepts:

A) SSO (Single Sign-On) is a mechanism that allows users to authenticate themselves once and gain access to multiple systems or applications without having to re-enter their credentials for each system.

C) Zero Trust is a security framework that assumes no trust in any user or device, requiring authentication and authorization at every step. It is not specific to credential management.

D) Separation of Duties is a principle that involves dividing responsibilities among multiple individuals to reduce the risk of fraud or malicious activity. While it is a good practice, it is not directly related to credential management.

E) Multifactor Authentication involves using multiple authentication factors (e.g., password, biometric, one-time password) to verify the identity of users. While it enhances security, it is not directly related to central management of credentials for administrative privileges on network devices.

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