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Sobering Realities of Enforcing NAC: Top 5 Challenges that Solutions Need to Address
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Is Network Access Control living up to the hype? Despite the general acceptance that something is needed to secure mobile and unmanaged endpoints connecting to the network, NAC pre-connect solutions face a number of challenges. Here is a look.
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Reliable Client Connectivity in Metro-Scale Wi-Fi Networks
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Ensuring user satisfaction in metro-scale Wi-Fi networks involves more than just deploying large numbers of nodes. A number of other factors are at least as important. For example, the links between the mesh and the Internet matter. What users do on the network matters. And, more than anything, client connectivity matters.
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Combating the Evolution of Insider Attacks with Persistent LAN Security
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In just a few years, attack patterns have evolved from shotgun approaches like mass-mailer viruses to sophisticated, targeted attacks. The new pattern in these attacks is abundantly clear: financial gain. And the culprits are increasingly the organization's “insiders”—the employees, contractors and business partners working inside the network's perimeter protections. This article examines the concept of persistant LAN security.
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A Look Ahead at 2007 for Service Providers
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It's that time of year again – time to look beyond the holidays (it's tough, I know) and start thinking about your New Year's resolutions. Here are some thoughts for Service Providers
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The Virtualization of Security
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By now, we all agree that virtualization is the next great enabling technology for data center consolidation. Within the network security domain, one can identify several virtualization techniques that provide not only immediate economic benefits but also flexible threat mitigation capabilities. These techniques revolve around virtualized policy, network and application services
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Deploying VoIP in Branch Offices: A Checklist of Key Security Concerns
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VoIP is a disruptive event that has many ripple effects in branch-office networks. If call processing is added to the network, will the firewall let the voice connection through or not? Is sufficient QoS designed into the network to support voice adequately? Will the branch network support a highly available VoIP service? What are the security concerns?
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Introducing a Security Service Layer for IMS
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Anew layer of security equipment called Unified Threat Management (UTM) is being applied to the fast-changing requirements of the evolving IMS infrastructure. With the new IMS network comes IP security threats usch as worms and viruses. Service providers need to adopt a more comprehensive approach to securing their networks – one that does not focus on point or edge security, but rather provides a flexible, consolidated service layer that begins at the network core.
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Security Gateway vs. Session Border Controllers for Protecting Fixed Mobile Converged Networks
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The emerging IP Multimedia Subsystems (IMS) and Unlicensed Mobile Access (UMA) standards are regarded as the cornerstones for creating FixedMobile Convergence (FMC). This article discusses the security challenges for next generation FMC networks.
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Fixed-Mobile Convergence (FMC) Applications: Moving from Theory to Reality
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The year 2006 will likely see fixed-mobile convergence (FMC) move from industry theory to a closer reality. Driving the move toward FMC is a merging of a number of trends, including subscriber churn and loyalty, next-gen telephony services, revenue generation possibilities and infrastructure technological advances.
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An Introduction to the IP Multimedia Subsystem (IMS)
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Put simply, IMS is an architecture that merges the applications and capabilities of the Internet with both wireless and wireline telephony, and promotes fixed/mobile convergence. This article aims to provide that starting point, with an overview of the most important aspects of the IMS specification.
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