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Cornerstone Issue 77: March 30, 2007
Welcome to Issue 77 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.
http://fiercemarkets.tradepub.com/free/w_ai05/pf/w_ai05.pdf
Wi-Fi misuse, abuse, or attack can cause financial harm; an effective network
defense now requires the ability to control all wireless activity that impacts
your business. This paper, developed by Lisa Phifer for AirTight Networks,
decomposes the challenge of securing an enterprise WLAN into five essential
steps and recommends best practices to ensure the safety and integrity of
today's enterprise networks.
http://www.wi-fiplanet.com/tutorials/article.php/3667586
Either version of WPA can stop wireless eavesdropping -- with one big caveat.
The encryption keys upon which they depend must never be disclosed. That's
where PSK crackers come in. In this tutorial, Lisa Phifer explains how PSK
crackers work and suggests ways to mitigate this risk for home WLANs.
http://searchnetworking.bitpipe.com/detail/RES/1173126666_544.html
In this webcast, Lisa Phifer discusses how to effectively mitigate
wireless-specific threats while efficiently leveraging existing network
security policies and infrastructure investments, from combining remote
access security practices with new wireless host tools to complementing
conventional vulnerability assessment with new wireless IPS and unified
security event management systems.
http://searchsecurity.bitpipe.com/detail/RES/1173127684_69.html
Many companies already know how to move private VoIP traffic over corporate
Ethernet LANs. But how will running VoIP over wireless LANs impact the
security policies and technologies used within corporate networks? In this
podcast, Lisa Phifer considers some of the challenges that lie ahead.
http://searchnetworking.com/tip/0,289483,sid7_gci1245043_tax305878,00.html
Today, many business networks rely on VLANs to partition Ethernets and control
destinations reached by each worker. As users begin to shift between Ethernet
and Wi-Fi throughout the work day, it makes sense to apply VLANs to both wired
and wireless. In this tip, Lisa Phifer describes common methods for mapping
Wi-Fi stations onto corporate VLANs and suggests when you might want to do so.
http://informationsecurity.techtarget.com/magItem/0,291266,sid42_gci1245604,00.html
Unified threat management (UTM) appliances which integrate (at least)
firewall, IPS, and antivirus onto a single platform, have long appealed to
SMBs. But does UTM have a place in the enterprise? In this InfoSec feature,
Lisa Phifer interviews four enterprises about their UTM experiences.
http://searchsecurity.com/tip/0,289483,sid14_gci1247072,00.html
Winning the war against malicious spyware requires a layered defense, applied
at the desktop, server and network edge. In this tip, Lisa Phifer considers
how unified threat management (UTM) appliances can help to defeat spyware at
network and workgroup perimeters.
http://searchsecurity.bitpipe.com/detail/RES/1174057962_653.html
Today, nearly every firewall vendor claims to deliver UTM. However, it can
be quite challenging to make apples-to-apples comparisons when trying to
select a UTM appliance. In this Webcast, Lisa Phifer explores the services
and features provided by many of today's UTM products, including those
designed for enterprise deployments.
http://searchmobilecomputing.com/tip/0,289483,sid40_gci1243728,00.htmlu
At the Gartner Wireless and Mobile Summit 2007, analysts painted a scary
picture for companies grappling with mobile/wireless security. In her
latest searchMobileComputing tip, Lisa Phifer reports on business needs
and strategies for securing mobile wireless devices.
http://searchnetworking.bitpipe.com/detail/RES/1173818310_333.html
NAC makes it possible for companies to exert control over corporate network
access based on endpoint security profiles. Reaching that point requires
making some far-reaching decisions about network architecture. This Webcast,
Lisa Phifer explores where NAC policy enforcement points can be placed, and
how to integrate them with existing remote access and LAN security solutions.
http://searchnetworking.bitpipe.com/detail/RES/1173890854_893.html
In this Podcast, Lisa Phifer discusses why NAC appliances are quickly becoming
popular, how they fit into network architectures, and how they compare to
full-blown infrastructure NAC strategies for managing network resource access.
http://searchnetworking.com/tip/0,289483,sid7_gci1245936_tax305874,00.html
Given that SSL VPNs can be used from unmanaged home or public PCs, it is
critical to assess the remote endpoint's security when deciding whether to
permit access to corporate resources. Here, Lisa Phifer explores why NAC
functions are used to strengthen SSL VPNs, and their relationship to
industry initiatives like TNC, NAP, and NAC.
Dave's web log has a new domain name! While all past blog links at
hhi.corecom.com will remain reachable, please bookmark this blog's
new domain name: http://www.securityskeptic.com
http://www.securityskeptic.com/arc20070201.htm#BlogID592u
Dave describes his experiences migrating his network assessment and security
"tool kit" from Windows XP to Mac OS X, and some of his early experiences
exploring the world of network assessment utilities that complement many
popular Open Source network and security utilities with Mac's friendly UI.
http://www.securityskeptic.com/arc20070201.htm#BlogID590
Last month, Dave wrote about the need to test firewalls to determine whether
they could correctly process IPv6 addresses and the use of EDNSO in DNS message
exchanges to prepare for the inclusion of "quad A" records in the root hint and
root zone files, and how this led to his SSAC committee's call for community
participation to extend testing beyond his "skunk works" efforts. In February,
Dave and SSAC/RSSAC colleagues formulated a new set of tests for resolvers, and
called on the community to assist in testing recursive name servers.
http://www.securityskeptic.com/arc20070301.htm#BlogID603
After months of testing and even more months of deliberation and debate, the
RSSAC and SSAC committees have forwarded a recommendation to IANA recommending
that AAAA records of root name servers be included in the root hints and root
zone files and that both type A and type AAAA records be returned in DNS priming
responses from root name servers (irrespective of whether IPv4 or IPv6 transport
is used). Here, Dave summarizes the contents of this report and reflects on the
time and talent invested.
http://www.securityskeptic.com/arc20070301.htm#BlogID600
Dave describes his experiences installing KisMAC, a handy wireless LAN
discovery, security, and network assessment utility for Mac OS X fans.
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