Cornerstone Issue 48: February 22, 2003



Welcome to Issue 48 of Cornerstone, an electronic newsletter issued periodically by Core Competence.

Cornerstone reports on a wide range of networking topics and activities involving Core Competence. A brief abstract explains what you will find if you choose to visit each URL.

WIRELESS SECURITY

http://searchmobilecomputing.techtarget.com/originalContent/0,289142,sid40_gci920704,00.html
Wireless LAN Info Center
searchNetworking, February, 2003

Readers interested in wireless LANs might want to add this URL to their browser favorites. Sponsored by Intel, this new searchNetworking WLAN info center provides a handy reference for WLAN breaking news, tips by site experts like Lisa Phifer, and related links and white papers. Tips recently posted to this page include the following...

http://searchnetworking.com/0,294276,sid7_gci879228_tax293386,00.html
Choosing between 802.11a and 802.11b
searchNetworking.com, February 11, 2003

Until recently, all Wi-Fi products were based on 802.11b. Now that 802.11a products are available, how do they compare? In this searchNetworking tip, Lisa Phifer summarizes the differences and suggests where A, B, and A+B Wi-Fi products are best used.

http://searchnetworking.com/0,289483,sid7_gci872324,00.html
Keeping Tabs on 802.1X
searchNetworking, January 6, 2003

If you are concerned about wireless LAN security, you should become familiar with 802.1X. In enterprise WLANs, 802.1X is the keystone that supports more robust airlink security measures. In this searchNetworking column, Lisa Phifer discussed 802.1X product support and newly-discovered EAP method vulnerabilities.

http://searchnetworking.com/ateAnswers/0,289620,sid7_tax292553,00.html
searchNetworking Wireless LAN Q&A
January, 2002

As a searchNetworking expert on wireless LANs, Lisa Phifer answers questions posed each week by readers. Questions tackled this month:

  • Designing a wireless network
  • Securing GPRS
  • Using PDAs to access WLANs
  • VoIP over 802.11 wireless
  • Sizing an 802.11a WLAN installation
  • Supplying mobile access to office staff
  • Interframe spacing in wireless networks
  • WLAN predictions for 2003


VIRTUAL PRIVATE NETWORKS

http://www.networkmagazine.com/article/NMG20021203S0017
News & Analysis: SSL-based VPNs
Network Magazine, December 4, 2002

Secure Sockets Layer (SSL) VPNs are attracting attention as a viable VPN substitute. As always, the trick is to know where and when to deploy it. In this interview, Network Magazine publishes commentary from CoreCom's Dave Piscitello and Chris Aronis of Synapse Strategies.

SECURITY ADMINISTRATION

http://www.bcr.com/bcrmag/2002/12/p32.asp
http://www.corecom.com/html/bcrmag.html#dec02
Best Practices For Securing Enterprise Networks
Business Communications Review, December 2002

Safeguarding networked assets is an operational and business necessity, but to do so, you must understand the threats, quantify the potential cost of being attacked and employ security best practices to manage business risk. In this article published by BCR magazine, Dave and Lisa recommend their top ten best practices and security measures.

http://www.corecom.com/external/livesecurity/vlans.htm
Using Virtual LANs to Get More from Your Firewall
WatchGuard LiveSecurity Editorial, December 6, 2002

This LiveSecurity column by Lisa Phifer for WatchGuard explains how VLAN tags can be used to creating independent firewall rules for logical workgroups and with virtual interfaces on a WatchGuard Vclass firewall.

QUALITY OF SERVICE

http://www.corecom.com/external/livesecurity/qos1.htm
Introducing Quality of Service
WatchGuard LiveSecurity Editorial, November 22, 2002

Edge QoS refers to several different traffic-handling techniques, including traffic shaping, traffic policing, and traffic marking. In this LiveSecurity column, Dave Piscitello describes each of these concepts and how they apply to firewalls.

http://www.watchguard.com/docs/whitepaper/qos_wp_ltr.pdf
Quality of Service and the Firebox Vclass Firewall
WatchGuard White Paper, December 2002

Internet access bandwidth is a recurring and persistently expensive outlay for most organizations. This white paper, developed by Dave Piscitello for WatchGuard, describes how to reduce your company's cost of access and provide better service levels by utilizing the QoS features found in WatchGuard Firebox Vclass firewalls.

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