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Wireless Security.pdf - PDF Archive

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512 Chapter 21<br />

SSL provides the three tenants of Public Key Infrastructure (PKI) security to users:<br />

●<br />

●<br />

●<br />

Authentication Ensures that the message being received is from the individual<br />

claiming to send it.<br />

Confidentiality Ensures that the message cannot be read by anyone other than<br />

the intended recipient.<br />

Integrity Ensures that the message is authentic and has not been altered in any<br />

way since leaving the sender.<br />

Dolphin provides some robust features that are typically found in very expensive<br />

hardware-based solutions, including secure authentication, IPSec security, and session<br />

roaming across subnets. Users authenticate to the Dolphin server over the WLAN using<br />

SSL-secured communications and then are granted access to the wired network. Dolphin<br />

supports two groups, users and guests, and you can control the access and quality of<br />

service of each group as follows:<br />

●<br />

●<br />

Users Trusted users who can use IPSec to secure their connection and access all<br />

resources.<br />

Guests Unknown users who are not allowed to use IPSec to secure their<br />

communications and have access control restrictions in place.<br />

Finally, Dolphin supports encrypted wireless network usage through IPSec tunnels.<br />

Through the creation of IPSec VPN tunnels, users can pass data with a higher level of<br />

security (encryption) than WEP provides.<br />

To begin working with Dolphin, you need to register for the Reef Edge TechZone at<br />

http://techzone.reefedge.com . Once this is done, you will be able to download the<br />

CD-ROM ISO image and bootable diskette image files from the Reef Edge download<br />

page. The server that you are using for Dolphin must meet the following minimum<br />

specifications:<br />

●<br />

●<br />

Pentium CPU (586) or later<br />

Pentium CPU (586) or later<br />

www.newnespress.com

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