radius

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radius,

in anatomy: see armarm,
upper limb in humans. Three long bones form the framework of the arm: the humerus of the upper arm, and the radius (outer bone) and ulna (inner bone) of the forearm.
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radius

[′rād·ē·əs]
(anatomy)
The outer of the two bones of the human forearm or of the corresponding part in vertebrates other than fish.
(mathematics)
A line segment joining the center and a point of a circle or sphere.
The length of such a line segment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

radius

1. a straight line joining the centre of a circle or sphere to any point on the circumference or surface
2. the length of this line, usually denoted by the symbol r
3. the distance from the centre of a regular polygon to a vertex (long radius) or the perpendicular distance to a side (short radius)
4. Anatomy the outer and slightly shorter of the two bones of the human forearm, extending from the elbow to the wrist
5. a corresponding bone in other vertebrates
6. any of the veins of an insect's wing
7. a group of ray florets, occurring in such plants as the daisy
8. the lateral displacement of a cam or eccentric wheel
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

RADIUS

Remote Authentication Dial-In User Service
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

RADIUS

(Remote Authentication Dial-In User Service) An authentication, authorization and accounting (AAA) protocol developed by Livingston Enterprises (later acquired by Lucent). RADIUS uses a challenge/response method for authentication and has been widely used prior to Diameter. See Diameter, network access server and challenge/response.
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References in periodicals archive ?
(i) Win2008 RADIUS server cannot solve every authentication problems for mobile device.
In the most common 802.IX WLAN environments, the APs defer to the RADIUS server to authenticate users and to support particular EAP authentication types.
Odyssey Server is a RADIUS server specially designed to handle WLAN access control and security.
RADIUS servers continue to be a critical component of any 802.1X-based infrastructure," said Earl Perkins, a vice president of Security & Risk Strategies at META Group.
Rather than relying on a predefined shared key, WPA 802.1X/EAP employs a user ID and password to authenticate each wireless device when it associates with a WAR The credentials supplied are validated against a Radius server or a directory server (such as Windows Active Directory) supporting the Radius protocol.
A RADIUS server will most likely be desirable for managing shared secrets for all but the smallest fabrics.
Korenix golden Industrial L3 PoE Switch-JetNet 7310G attracts most eyeballs by its unique color and high performances such as wide operating temperature from -40~75[degrees]C, redundant wide range power input- DC 10~36V, and Advanced Cyber Network Security supported- MAC security, IEEE 802.1x Port Based access control, IEEE 802.1x Radius Server authentication, 802.1x MAB, Distributed Denial of Service (DDoS), IP Source Guard, Denial of ARP Inspection.
WPA-personal provides a means for the network administrator to dispense with a RADIUS server and just enter authentication keys manually.
Funk Software has unveiled the new Odyssey Certificate Authority, a free tool that lets enterprise network managers automatically configure a Funk Software RADIUS server with the X.509 certificate it needs to set up the strongest 802.1X- based WLAN or wired security.
* AEGIS Server -An 802.1x-based AAA Radius server providing Layer 2 tunneled authentication and supporting MD5, TLS, TTLS, LEAP, and PEAP on Windows, Linux, and Solaris operating systems.
A RADIUS server simplifies the implementation and management of network security at the switch level by maintaining the master database of all user profiles.
Worldwide Computer Products News-23 November 2000-Network Utilities introduces carrier-class RADIUS server (C)1995-2000 M2 COMMUNICATIONS LTD http://www.m2.com