Network Servers and Services Lesson 004: AAA Servers Part 2

What does RADIUS stand for?

Remote Authentication Dial-In User Service.

What does TACACS+ stand for?

Terminal Access Controller Access-Control System Plus.

What are the two main protocols used for performing AAA authentication, authorization, and accounting functions?

RADIUS and TACACS+.

Remote Authentication Dial-In User Service

A widely used protocol for managing authentication, authorization, and accounting.

Where is RADIUS most commonly utilized?

In enterprise WiFi networks, VPNs, and remote access systems.

What does UDP stand for?

User Datagram Protocol.

What does RADIUS do in function?

Can combine the authentication and authorization functions into a single process, operating over UDP.

Terminal Access Controller Access-Control System Plus

Uses separate authentication, authorization, and accounting processes to allow for greater flexibility in network configurations.

Who was TACACS+ initially developed by?

Cisco.

What is TACACS+ most commonly used for?

Managing network devices, like routers and switches.

What protocol/s is TACACS+ used over?

TCP.

Which AAA Server protocol offers more reliable communications and why?

TACACS+ due to the utilization of TCP.

What is the deciding factor when it comes to choosing RADIUS or TACACS+ as the AAA Server protocol of choice?

The specific needs of the organization utilizing AAA Servers.

What do AAA Server do in practice overall?

Help to improve security, simplify management, and provide valuable insights into network activity.

Why must a network technician understand the basics of how AAA Servers work?

In order to maintain secure and well-managed systems on a network.