Tim Greene

Senior Editor

Tim Greene is a senior editor at Network World, covering network access control, virtual private networking gear, remote access, WAN acceleration and aspects of VoIP technology. You can reach him at tgreene@nww.com.

tgreene@nww.com (508) 490-6422 Fax: (508) 490-6489

Network World, Inc. 118 Turnpike Road Southborough, MA 01772

Recent articles by Greene

Cisco buys into e-mail with $215 million PostPath acquisition
08/27/08
Cisco is buying PostPath, a maker of e-mail and calendaring software, for $215 million and plans to add those capabilities to its on-demand Web Ex Connect collaboration platform.

Expand Networks secures $8.5 million in venture capital
08/27/08
WAN optimization vendor Expand Networks taps $8.5 million for R&D

Alcatel-Lucent intros Gigabit Ethernet switches
08/26/08
Alcatel-Lucent is delivering a new family of Gigabit Ethernet switches that fit into its architecture for blending data, voice and wireless connectivity and are designed for small and medium businesses.

PGP upgrades encryption wares
08/25/08
PGP is upgrading three of its products to give security policymakers greater flexibility when working with its encryption technology.

Verizon Business' NAC service
08/21/08
Verizon Business has announced a NAC service in which it helps customers decide what NAC product best fits its needs and then installs it.

New router algorithm offers hope for old routers
08/20/08
A team of computer scientists has proposed a new algorithm that makes routers operate more efficiently by automatically limiting the number of network route or link-state updates they receive.

Internet-threat portal on tap from TippingPoint
08/19/08
TippingPoint is beta-testing a Web portal that lets customers view Internet threat intelligence the company has gathered from around the globe, as well as polls of how other customers are dealing with those threats.

802.1x-based NAC
08/19/08
A recent poll at a Gartner security conference indicates strong interest in 802.1x authentication that will feed into the network-based, identity driven model of NAC.

Check Point goes virtual with VPN-1
08/18/08
Check Point is introducing a version of its VPN-1 software that runs on VMware ESX or ESXi to protect virtual machines from one another when they are running on a single piece of hardware.

ConSentry's LANShield gear has NAC
08/14/08
ConSentry makes switches that support NAC, and that is how the company hyped itself when it started out, but the gear does a lot more.

Taco Bueno taps ConSentry for more than switching
08/13/08
When restaurant chain Taco Bueno ran out of access ports it decided to buy ConSentry switches in part because they helped fill security and access control needs that other switches couldn't.

Support costs force Cisco routers out; Juniper gear in at Amazingmail.com
08/12/08
Amazingmail.com tossed its Cisco routers, switches and firewalls for Juniper gear and wound up saving enough in ongoing support costs that the project will pay for itself in eight months.

Don't let NAC become a hinderance
08/12/08
It's important to remember that if NAC becomes a hindrance in networks it becomes a bad investment that gets blamed for preventing employees from doing their jobs.

Black Hat spotlights virtualization, DNS issues
08/08/08
The 12th Black Hat conference convened at Caesar’s Palace last week, where the 4,500 attendees (a 12.5% increase over last year) heard about the security problems that will plague virtualized environments, why Cisco routers are more of a hacker target than ever and a detailed explanation of DNS attacks.

Business hacks reap money from e-commerce sites
08/08/08
Anyone with a sharp eye for flawed business logic and a dim view of business ethics can exploit e-commerce Web sites for millions of dollars, security experts told Black Hat attendees.

Lawsuits can be an expensive IT threat
08/08/08
Corporate IT executives need to create internal task forces today to deal with what can be an expensive threat - litigation, Black Hat attendees were told.

Dangerous databases?
08/07/08
Treat metadata skeptically or it can lead to unexpected risks to corporations, warned the keynote speaker at the Black Hat conference.

Beware hacking of implanted medical devices
08/07/08
LAS VEGAS -- Wireless security experts have another area to worry about: embedded medical devices that communicate with the world outside the body via radio waves, speakers at Black Hat warn.

SSL VPNs might not be as secure as you think
08/07/08
SSL VPNs can be compromised in a way that enables them to take over remote users' machines and potentially cause mischief inside the networks they attach to, according to research presented at the Black Hat conference. 

Potential vulnerabilities in NAC clients
08/07/08
At the Black Hat conference this week, a researcher pointed out vulnerabilities that can be present in devices that rely on Active X to download clients.

Juniper consolidates network management software
08/05/08
Juniper Networks has extended the role of its Network and Security Manager software to help customers simplify and tighten network management.

Juniper and Microsoft become NAC compatible
08/05/08
Juniper has upgraded the software for its NAC gear, making it compatible out of the box with Microsoft's NAC scheme.

Internet security moves to the cloud
08/04/08
A start-up that dishes up an in-the-cloud security service says it also eliminates capital outlay for security gear and reduces ongoing support costs.

Using NAC to meet regulatory requirements
07/31/08
Recently, a NAC customer said the technology does well performing one of its primary functions - the often cited, access control for guests - and that was the primary reason they bought NAC.

Skype won't say if it decrypts VoIP calls for law enforcement
07/29/08
The encryption of Skype VoIP phone calls might not be as secure as you think.

More articles  »