Cornerstone Issue 78: May 25, 2007



Welcome to Issue 78 of Cornerstone, a subscription-only 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 LANs

http://www.ruckuswireless.com/technology/whitepapers/smb/
Making WLANs Work Reliably and Cost-Effectively in a Multimedia World
Ruckus Wireless White Paper, May 2007

This paper, written by Lisa Phifer for Ruckus Wireless, examines the opportunities and challenges associated with operating an SMB WLAN or public hot spot. It describes what these organizations need to deliver Wi-Fi more reliably, to increasingly diverse devices and applications, covering larger areas and higher user densities, while minimizing total cost of ownership, and introduces the Ruckus ZoneFlex platform.

http://www.tmcnet.com/webinar/xirrus/xirrus-webinar-wi-fi-encryption-theory-uses-tips-and-tricks.htm
Wi-Fi Encryption: Theory, Uses, Tips, and Tricks
Xirrus Webinar, May 16, 2007

Implementing and maintaining Wi-Fi networks requires an increased awareness and understanding of the techniques available to ensure the confidentiality of data traveling over wireless networks is equivalent to or better than wired networks. In this webinar -- one of a series of educational events produced by Xirrus -- Lisa Phifer joined Bruce Miller to discuss Wi-Fi encryption threats, standards, certifications, and practices. This live event is now available for on-demand viewing.

http://searchnetworking.com/tip/0,289483,sid7_gci1252536,00.html
Wireless Internet access -- 3G vs. Wi-Fi
searchNetworking, April 26, 2007

Wi-Fi has become the dominant wireless Internet access method, embedded in nearly every laptop sold today. Older cellular services were just too slow for widespread Internet access, but 3G services like EV-DO and HSDPA have dissolved that barrier. In this tip, Lisa discusses how to choose a wireless Internet access method that meets your needs, style and budget.

Branch Office Security

http://searchnetworking.bitpipe.com/data/document.do?res_id=1178728306_836
Does security integration equal a more secure branch office?
searchNetworking Webcast, May 2007

In this on-demand webcast, Dave Piscitello discusses what constitutes a secure branch office, the security delivered by "branch in a box" versus best of breed solutions, support for remote management and monitoring, and how to keep pace with user growth and application needs.

http://searchnetworking.com/tip/0,289483,sid7_gci1253373_tax306873,00.html
Reduce branch office threats in 10 steps
searchNetworking Tip, May 1, 2007

Many organizations host business-critical applications in branch offices, but doing so exposes them to many new threats. Here Dave Piscitello looks at potential threats to branch offices and 10 ways to reduce them.

http://searchnetworking.bitpipe.com/data/document.do?res_id=1178729421_214
Improve your branch office security, one "A" at a time
searchNetworking Podcast, May 9, 2007

Security is historically described as having three critical attributes: authentication, authorization, and accounting. In this podcast, Dave Piscitello recommends how to improve your branch office security by tackling these challenges sequentially.

Wireless Security

http://www.airtightnetworks.net/knowledgecenter/airtight_whitepaper.html
Surviving Airborne Threats with Wireless Intrusion Prevention
AirTight Networks White Paper, April 2007

To safely reap the business benefits of Wi-Fi, we must move beyond weak first-generation deterrents like WEP and passive Wireless IDS. Surviving airborne threats requires a proactive, effective defense that incorporates both WPA and an automated, accurate Wireless WIPS. In this paper developed for AirTight, Lisa Phifer examines the key differences between WIDS and WIPS and criteria to consider when choosing a WIPS.

http://searchnetworking.com/tip/0,289483,sid7_gci1255957,00.html
Defending Wi-Fi clients
searchNetworking, May 24, 2007

As network and link defenses improve, however, attackers have started to target lower-hanging fruit: specifically, unsecured Wi-Fi-capable laptops, PDAs and handsets. In this tip, Lisa Phifer examines how host-resident wireless IPS agents can help safeguard client devices.

Mobile Computing

http://www.corecom.com/html/bcrmag.html#apr07
Defeating Malicious Mobiles
BCR Magazine, April, 2007

Companies that fail to assert IT control over mobile devices may be in for a nasty surprise. When it comes to gaining back-door access to corporate networks, unprotected PDAs and smart phones are ripe for the picking. In her latest BCR article, Lisa Phifer discusses mobile threats, corporate network exposure, and ways to manage business risk.

http://searchmobilecomputing.com/tip/0,289483,sid40_gci1252081,00.html
Choosing your next mobile device
searchMobileComputing, April 19, 2007

In this tip, Lisa examines new mobile devices designed for truly mobile workers -- employees who spend little or no time chained to a desk. For this crowd, device size, weight, battery life, wireless connectivity, ease of use, and appropriateness to environment and task are key criteria.

Dave Piscitello's Blog

Dave's web log has a new domain name: SecuritySkeptic! If you haven't already subscribed to Dave's blog, check out these recent posts...

http://www.securityskeptic.com/arc20070501.htm#BlogID613
Reject or Drop?
SecuritySkeptic, May 10, 2007

A recent thread on the pen-test@securityfocus.com mail list asked whether firewall rules should drop or reject traffic that doesn't conform to the security policy. Dave considers the arguments, pro and con, for operating a firewall in stealth versus reject mode.

http://www.securityskeptic.com/arc20070401.htm#BlogID609
Unforgiving?
SecuritySkeptic, April 18, 2007

In an article entitled Security Hats: Black and White, No Grayscale (http://www.securityskeptic.com/blackorwhitehat.htm), Dave explains why organizations should avoid hiring crackers (convicted or admitted). Some readers feel Dave's attitude is unforgiving. In this rant, Dave explains why "being forgiving" is not the (only) issue here.

http://www.securityskeptic.com/arc20070401.htm#BlogID604
Lesser known DOS netstat options
SecuritySkeptic, April 3, 2007

The netstat program is available on every OS Dave owns. Several options are unique to operating systems. A post to a recent thread on the firewall-wizards mailing list reminded Dave of several options that can be useful in isolating spyware components.

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