Join Mike Chapple for an in-depth discussion in this video RADIUS and TACACS, part of CompTIA Security+ Exam Prep (SY0-401): Access Control and Identity Management.
- One of the most common access control needs…is for an organization to have a centralized approach…to network and application authentication,…authorization, and accounting.…The RADIUS and TACACS protocols…offer this service to enterprises.…RADIUS is an acronym…which stands for Remote Access Dial-In User Service.…As the name implies, RADIUS was first used…to authenticate the users of modem-based dial-in…services back in the 1980s and 1990s.…A centralized RADIUS Server could support Modem Pools…located around the country, providing a single point…of administration for password and account management,…and consolidating accounting records…in a centralized location.…
RADIUS is still used today, even though dial-in Modem Pools…are a thing of the past.…Today they are used to allow many diverse applications…to rely upon the same authentication source.…Here's how it might work in a wireless network, for example.…First, the end user attempts to connect…to a wireless access point.…The access point serves as the client in the RADIUS request,…
Author Mike Chapple, an IT leader with over 15 years experience, introduces identification methods such as usernames and biometrics, as well as authentication methods to verify users, including multifactor authentication, password authentication, and single sign-on. He also discusses authorization concepts such as mandatory and discretionary access controls, which can help you restrict access to sensitive parts of your network. The course also covers best practices for ongoing account management, such as establishing a good password policy, managing user roles, and monitoring accounts, and what to do when you need to suspend or terminate access.
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- Setting policies for usernames and access cards
- Implementing biometrics
- Combining authentication factors for multifactor authentication
- Using a Kerberos access control system
- Using access control lists such as Windows NTFS file permissions
- Role-based authorization
- Implementing account and password policies