🎫

RADIUS & TACACS+: Network Authentication

Medium

Free preview · 2 of 5 steps

AAA: Authentication, Authorization, Accounting

AAA is the security framework for network access: Authentication (who are you?), Authorization (what are you allowed to do?), and Accounting (what did you do?).

RADIUS and TACACS+ are the two protocols implementing AAA in enterprise networks. RADIUS dominates for user access (WiFi, VPN), TACACS+ dominates for network device management (SSH to switches and routers).

Packets in motion — click to inspect:

1 / 2

Space to play/pause · ← → to step