RADIUS incorporates which of the following services?
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A. B. C. D.D.
A Network Access Server (NAS) operates as a client of RADIUS.The client is responsible for passing user information to designated RADIUS servers, and then acting on the response which is returned.
RADIUS servers are responsible for receiving user connection requests, authenticating the user, and then returning all configuration information necessary for the client to deliver service to the user.
RADIUS authentication is based on provisions of simple username/password credentials.
These credentials are encrypted by the client using a shared secret between the client and the RADIUS server.
OIG 2007, Page 513 RADIUS incorporates an authentication server and can make uses of both dynamic and static passwords.
Since it uses the PAP and CHAP protocols, it also incluses static passwords.
RADIUS is an Internet protocol.
RADIUS carries authentication, authorization, and configuration information between a Network Access Server and a shared Authentication Server.
RADIUS features and functions are described primarily in the IETF (International Engineering Task Force) document RFC2138
The term " RADIUS" is an acronym which stands for Remote Authentication Dial In User Service.
The main advantage to using a RADIUS approach to authentication is that it can provide a stronger form of authentication.
RADIUS is capable of using a strong, two-factor form of authentication, in which users need to possess both a user ID and a hardware or software token to gain access.
Token-based schemes use dynamic passwords.
Every minute or so, the token generates a unique 4-, 6- or 8-digit access number that is synchronized with the security server.
To gain entry into the system, the user must generate both this one-time number and provide his or her user ID and password.
Although protocols such as RADIUS cannot protect against theft of an authenticated session via some realtime attacks, such as wiretapping, using unique, unpredictable authentication requests can protect against a wide range of active attacks.
RADIUS: Key Features and Benefits FeaturesBenefits - RADIUS supports dynamic passwords and challenge/response passwords.
Improved system security due to the fact that passwords are not static.
It is much more difficult for a bogus host to spoof users into giving up their passwords or password-generation algorithms.
RADIUS allows the user to have a single user ID and password for all computers in a network.
Improved usability due to the fact that the user has to remember only one login combination.
RADIUS is able to: Prevent RADIUS users from logging in via login (or ftp)
Require them to log in via login (or ftp) Require them to login to a specific network access server (NAS); Control access by time of day.
Provides very granular control over the types of logins allowed, on a per-user basis.
The time-out interval for failing over from an unresponsive primary RADIUS server to a backup RADIUS server is site-configurable.
RADIUS gives System Administrator more flexibility in managing which users can login from which hosts or devices.
Stratus Technology Product Brief http://www.stratus.com/products/vos/openvos/radius.htm Source: KRUTZ, Ronald L.
& VINES, Russel.
D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Pages 43, 44
Also check: MILLER, Lawrence & GREGORY, Peter, CISSP for Dummies, 2002, Wiley Publishing, Inc., pages 45-46.
RADIUS stands for Remote Authentication Dial-In User Service, and it is a network protocol that provides centralized authentication, authorization, and accounting (AAA) management for users connecting to a network. RADIUS is commonly used for managing remote access, such as virtual private network ( VPN) connections and wireless networks.
RADIUS incorporates the following services:
A. Authentication server and PIN codes: RADIUS supports authentication using an authentication server that can verify the identity of a user attempting to connect to the network. It can also use a PIN code, which is a personal identification number that the user enters as part of the authentication process.
B. Authentication of clients and static passwords generation: RADIUS can authenticate clients using a static password, which is a password that does not change over time. The authentication process involves comparing the password entered by the user with the password stored in the RADIUS server.
C. Authentication of clients and dynamic passwords generation: RADIUS can also authenticate clients using a dynamic password, which is a password that changes over time. Dynamic passwords can be generated using a variety of methods, such as time-based or event-based one-time passwords (OTP).
D. Authentication server as well as support for Static and Dynamic passwords: RADIUS incorporates an authentication server that can support both static and dynamic passwords. The authentication process involves comparing the user's credentials with those stored in the RADIUS server. If the credentials match, the user is granted access to the network.
In summary, RADIUS provides centralized AAA management for network users, and it supports various authentication methods, including static and dynamic passwords, PIN codes, and authentication servers.