Network Security Best Practices and Products

  • September 02, 2004 02 Sep'04

    Sniffer spinoff: Sign of weakness or opportunity?

    Competitors have been busy differentiating themselves from market-leading, protocol-analysis tool Sniffer since it was spun off from McAfee Inc.

  • September 01, 2004 01 Sep'04

    What is a virtual private network (VPN)?

    Confused about what a virtual private network does? Start here, and then proceed through our links below.

  • August 25, 2004 25 Aug'04

    As switches soar, routers stall

    Two studies show that the switch market is growing rapidly while the market for routers is slowing. In part it's because switches are becoming more important.

  • August 23, 2004 23 Aug'04

    Singlefin, IMLogic join forces to offer hosted IM

    Singlefin and IMLogic have joined forces to offer new hosted IM filtering services to thwart SPIM, or IM spam, as well as viruses, worms and spyware.

  • August 20, 2004 20 Aug'04

    Microsoft offers IM help for admins

    News Editor Eric B. Parizo says it's hard to ignore that Microsoft's LCS 2005 should provide the first legitimate enterprise IM product with interoperability with public clients.

  • August 18, 2004 18 Aug'04

    Mesh networking questions still without answers

    Large-scale wireless LAN deployments can be problematic. It can be expensive to cover large campuses and small towns with enough access points to provide a useful network. Access points don't transmit through tall thick buildings. And running wires ...

  • August 16, 2004 16 Aug'04

    CCNA students get more hands-on experience

    Cisco is augmenting its CCNA course curriculum to give students more practical experience working with the OSI model.

  • August 12, 2004 12 Aug'04

    Configuration and change management defined

    Not sure what exactly configuration and change management are? You're not alone. Here's our concise definition.

  • August 12, 2004 12 Aug'04

    Planning keeps VoIP costs under control

    Implementing Voice over Internet Protocol (VoIP) is more complicated than most salespeople will admit. While the VoIP market is booming and manufacturers have fixed many of the quality problems that plagued early products, there are still plenty of ...

  • August 09, 2004 09 Aug'04

    Interoperability fuels enterprise IM debate

    Experts say Microsoft's friendlier enterprise instant messaging strategy should convince more businesses to use IM on their networks, but some question the importance of interoperability.

  • August 05, 2004 05 Aug'04

    Cisco defends NAC security strategy

    Networking market leader Cisco Systems Inc. wants to fundamentally change network security. While security devices have long been part of the network edge, Cisco is turning that model on its head with its self-defending network strategy by ...

  • August 04, 2004 04 Aug'04

    Wireless LAN planning -- 5 critical steps

    Our guide walks you through the five most important developments in wireless LANs and offers guidelines for product and technology selection. We'll help you avoid potential pitfalls to ensure that your wireless LAN implementation is successful from ...

  • August 02, 2004 02 Aug'04

    Drawing a line on device proliferation

    Thanks to some new research, enterprises now have a better way to decide who really needs a mobile device.

  • August 02, 2004 02 Aug'04

    VPN market makes room for IPsec and SSL

    IPsec VPNs are entrenched in many enterprises, but easier-to-use SSL VPNs could soon be just as popular. Experts explain where each type of VPN works best.

  • July 30, 2004 30 Jul'04

    Network devices face unending dangers

    Denial-of-service attacks, mirror points and false routing are just a few of the ways hackers can disrupt networks, but a Burton Group analyst explains how enterprises can thwart device danger.

  • July 27, 2004 27 Jul'04

    Bursting the bubble around enterprise networks

    Disruptive technologies like VoIP and wireless broadband along with more advanced users are forcing network managers out of their comfort zones and into uncharted territory, according to an analyst at Burton Group's Catalyst Conference.

  • July 26, 2004 26 Jul'04

    Showdowns and standoffs: Another ho-hum week for Cisco

    Cisco Systems Inc.'s security strategy is once again in the spotlight, but not because of what the networking giant is doing. Instead, it's the company's competitors that are forging ahead, putting new pressure on the market leader.

  • July 23, 2004 23 Jul'04

    Redundancy key to high availability VoIP

    At this week's Catalyst Conference, a Burton analyst explained why a VoIP system's success is determined during the implementation, and shed light on pitfalls that can harm quality of service.

  • July 22, 2004 22 Jul'04

    IPv6 offers more than extra addresses

    Even though the U.S. isn't likely to run out of Internet addresses anytime soon, one expert at the Burton Group Catalyst Conference said there are many good reasons to use IPv6.

  • July 20, 2004 20 Jul'04

    Looking for more volume, Nortel calls on its voice

    Nortel is leveraging its background in voice technology to challenge Cisco as a data networking player, but strong competition and its ongoing accounting scandal present daunting challenges.

  • July 19, 2004 19 Jul'04

    For secure networks, choices range beyond Cisco

    Cisco isn't the only company winning the hearts and minds of those looking for hard-core network security. A financial services firm explains how Enterasys is helping to secure its wired and wireless networks without arduous group-based policies.

  • July 15, 2004 15 Jul'04

    Security word search answer key

    Security word search answer key

  • July 14, 2004 14 Jul'04

    Analysis: Security strategies put Microsoft, Cisco at odds

    Microsoft is pushing ahead with its own network security strategy without the cooperation of Cisco Systems. Experts say that could cause discord among vendors and sizable interoperability problems for enterprises.

  • July 13, 2004 13 Jul'04

    Unruly IP addresses spark opportunity

    Former Check Point subsidiary MetaInfo is making a comeback by attacking Cisco in the enterprise IP address management field, which one expert says enterprises often overlook.

  • July 13, 2004 13 Jul'04

    Security word search

    Test your security knowledge by having some fun with this word search and enter our contest for your chance to win a free security book.

  • July 12, 2004 12 Jul'04

    With 802.11i, new standard means new problems

    The new 802.11i standard is expected to make wireless LANs more secure, but authentication interoperability problems could make it harder to run multi-vendor systems.

  • July 07, 2004 07 Jul'04

    Cisco's self-defending networks progress, slowly

    Cisco Systems Inc. has been in the process of folding security into its network infrastructure for some time. The initiative, known as the self-defending network strategy, is a part of Cisco's overall push to add more intelligence into the network. ...

  • July 06, 2004 06 Jul'04

    VoIP skills earn admins more cash

    Even though most IT pros are seeing less bonus pay, those with VoIP skills are earning more. Experts say that's because demand for VoIP expertise is increasing.

  • July 01, 2004 01 Jul'04

    Cisco Collaboration Server flaw could allow remote attacks

    A flaw in Cisco's Collaboration Server could leave some enterprises open to attacks from remote users. One analyst says the vulnerability demonstrates that the networking giant's software is not up to par with the rest of the industry.

  • June 29, 2004 29 Jun'04

    Demystifying fixed wireless

    A number of fixed wireless broadband services are emerging as low-cost connectivity options for businesses, and that's why many believe the market is likely to boom over the next five years. According to a report from Oyster Bay, N.Y.- based ABI ...

  • June 28, 2004 28 Jun'04

    Juniper adds SAML to SSL VPN

    The networking vendor is the first to add security assurance markup language compatibility to its SSL VPN, streamlining logon processes that are often complicated for users.

  • June 23, 2004 23 Jun'04

    Can 3Com bounce back?

    After losing market share and floundering in the enterprise market, 3Com Corp. is attempting a comeback. The Marlborough, Mass.-based networking vendor still has strong brand recognition and technological know-how. But can it effectively compete ...

  • June 21, 2004 21 Jun'04

    RouteScience, IBM partner for better app performance

    RouteScience is hoping its new partnership with IBM will not only improve application performance for Big Blue's server customers, but also build its own customer base while making its software easier to deploy.

  • June 17, 2004 17 Jun'04

    Renegotiate with providers before it's too late

    It's time to dust off those old service provider contracts and start hunting for bargains. According to a recent brief by the Stamford, Conn.-based research firm, Gartner Inc., network service providers are about to engage in another round of price ...

  • June 16, 2004 16 Jun'04

    Containment is essential for combating attacks

    Because your cyberdefenses are bound to be compromised eventually, your security strategy must include processes and technologies to contain the damage.

  • June 15, 2004 15 Jun'04

    Content filtering helps snub spyware

    ServGate partners with SurfControl adding content filtering to the company's modular multi-function security device.

  • June 14, 2004 14 Jun'04

    Visual Networks links traffic to applications

    A network management vendor's new monitoring suite helps managers determine which applications are causing problems and whether users are ignoring usage policies.

  • June 10, 2004 10 Jun'04

    Relicore improves network mapping

    Relicore has updated its network configuration management software with new real-time mapping capabilities and compatibility with HP OpenView.

  • June 07, 2004 07 Jun'04

    In battle against Goliaths, VoIP startup is cool as ice

    A Texas startup is hoping that its voice-packet prioritization products can be the single stone it will take to compete with established VoIP giants like Avaya and Cisco Systems.

  • June 07, 2004 07 Jun'04

    Application delivery for the ROI-driven data center

    As innovation and demand converge in the new ROI-driven data center, yesterday's load balancer is being supplanted by a rapidly evolving category, the application delivery system.

  • June 04, 2004 04 Jun'04

    Spam landscape bleaker than ever

    Columnist Jonathan B. Spira says now that CAN-SPAM has made the problem worse, e-mail is losing its value because legitimate messages are outnumbered sour sales pitches.

  • June 03, 2004 03 Jun'04

    Router, Ethernet switch markets surge upward

    The router and switch markets are benefiting from a new round of corporate spending. One user suggests that enterprise application upgrades are spurring the need for faster networking gear.

  • June 02, 2004 02 Jun'04

    Radicati forecasts 'enormous investment' in VoIP

    In four years, nearly half of all corporate phone lines will use VoIP, according to a new forecast from The Radicati Group. As deployment costs drop, worker productivity gains and vendor competition are making the technology too attractive to ignore.

  • June 01, 2004 01 Jun'04

    Call quality issues hamper VoWi-Fi

    More companies are starting to factor voice calls into their wireless LAN plans, but it requires more than Wi-Fi phones. Most 802.11 access points can only handle up to eight calls at a time, and voice traffic is easily superseded by large data ...

  • May 26, 2004 26 May'04

    Sprint: Success hinges on converged network

    A top Sprint executive says the company is combining its various networks in order to offer users a consistent experience, regardless of where they are or how they connect.

  • May 24, 2004 24 May'04

    HP's quest for proactive management

    Plenty of vendors are pitching a vision of a new enterprise IT infrastructure that is flexible, reacts in real time and incorporates plenty of new technology, from Web services to identity management to mobile devices and more. Hewlett-Packard Co. ...

  • May 24, 2004 24 May'04

    Symbol CIO: Wireless isn't just a network tool

    LAS VEGAS -- At Networld+Interop 2004, Symbol Technologies Inc. announced a new product line called Mobility Services Suite. John G. Bruno, Symbol's chief information officer, sat down with to help us better understand Symbol's ...

  • May 19, 2004 19 May'04

    Lessons learned: Symbol's Nuti looks to verticals

    LAS VEGAS -- In January, William Nuti took over as CEO of Symbol Technologies Inc., the second largest enterprise wireless LAN infrastructure provider after Cisco Systems Inc. Nuti, who originally joined the company in July of 2002 as the COO, ...

  • May 18, 2004 18 May'04

    Making sense of performance management products

    The network seems fine, but Oracle keeps timing out and your CRM package is extremely sluggish. Application performance problems plague many networks, but can be difficult to diagnose.

  • May 13, 2004 13 May'04

    Chambers: Flexibility, security key to networking success

    Cisco's top executive told an N+I crowd that enterprises should craft their networks around business needs, not vice versa, and said the networking giant is putting a new emphasis on designing security features into its products.

  • May 12, 2004 12 May'04

    What accounting woes? Nortel exec keys on convergence

    In a surprisingly positive keynote at N+I, a top Nortel executive says the troubled networking company is focused on developing convergence technology, and not on the accounting fiasco that took down its CEO.

  • May 12, 2004 12 May'04

    Experts: Don't underestimate Wi-Fi complexity

    Just because a network lacks wires doesn't mean it lacks complexity. Experts at N+I say that enterprises must consider security, applications and user demands, or else a wireless LAN implementation may not succeed.

  • May 10, 2004 10 May'04

    On security, is Cisco the next Microsoft?

    After a flood of recent security vulnerabilities, some wonder if Cisco's security track record is becoming as tarnished as Microsoft's. Though the networking giant is wearing a bigger target than ever, experts say good communication and best ...

  • May 05, 2004 05 May'04

    Is convergence inevitable?

    The key theme of last week's Enterprise Networks conference in Boston -- convergence -- made me think of one of my favorite (though far fetched) movie scenes of all time.

  • May 05, 2004 05 May'04

    BMC upgrade takes process management to the network

    An agreement between BMC and Packeteer will help businesses deal with the arduous task of tying network traffic and applications to business processes.

  • May 04, 2004 04 May'04

    Gartner: Cisco falling short with CallManager

    Gartner says the software that powers Cisco's IP telephony offering is weak against products from Avaya and Nortel, and that the networking giant may be too confident in its voice business.

  • May 03, 2004 03 May'04

    Siemens rolls out mega-sized VoIP

    Siemens' new VoIP call management software can handle 100,000 users and takes advantage of presence-based apps like instant messaging. An analyst says it holds up well against competition from Avaya and Nortel.

  • April 29, 2004 29 Apr'04

    Vendors coy on lagging Wi-Fi speeds

    It's a secret vendors try to ignore, but real-world wireless LAN speed are only one-third to one-half of what the industry advertises. Experts explain why, and offer tips for squeezing the most out of a WLAN.

  • April 28, 2004 28 Apr'04

    Avaya CEO: 'We have to win' VoIP

    BOSTON -- According to Avaya Inc. CEO Donald Peterson, the Basking Ridge, N.J.-based vendor's future depends on VoIP. He also believes the fate of many enterprises could be determined by whether companies succeed or fail at merging their voice and ...

  • April 27, 2004 27 Apr'04

    With downturn over, experts say convergence is 'unavoidable'

    Industry experts at the Enterprise Networks conference say converged voice and data networks are the best way to reduce costs and integrate e-mail, voice, video and IM applications.

  • April 26, 2004 26 Apr'04

    Cisco under fire

    Since the end of March, Cisco has been forced to respond to or announce six different security flaws -- more than one a week on average.

  • April 26, 2004 26 Apr'04

    Engineering VoIP savings with bandwidth management

    After an engineering firm discovered that VoIP traffic bogged down its network, it used a traffic management system from Packeteer to not only improve voice call quality, but also to avoid buying extra bandwidth.

  • April 21, 2004 21 Apr'04

    IDC: Networking 'disruptions' will drive spending

    An IDC analyst says disruptive technologies like Wi-Fi, VoIP and utility computing will drive network spending, but only in certain industries where business demands justify the investment.

  • April 20, 2004 20 Apr'04

    NetScreen's Web-conferencing play goes after Cisco

    Juniper subsidiary NetScreen has refreshed its Web-conferencing appliances, using SSL to keep online meetings secure without client-side software. A customer says the products make collaboration easier, but remote help desks may disagree.

  • April 19, 2004 19 Apr'04

    Network Device Management

    This chapter excerpt focuses on device management and the role it plays in network configuration management.

  • April 19, 2004 19 Apr'04

    Are mobile devices opening the network perimeter?

    A Burton Group report suggests that enterprise networks -- and the data they safeguard -- may be at risk because of unsecured mobile devices.

  • April 19, 2004 19 Apr'04

    Expand Networks offers WAN conservation appliances

    Expand Networks has announced a new roster of WAN optimization appliances, intended to help remote offices avoid bottlenecks caused by enterprise applications.

  • April 15, 2004 15 Apr'04

    Cisco looks to dominate Web conferencing

    If the growing interest among enterprises in providing employees and partners with information regardless of their location is any indication, then the remote collaboration market is set to take off. One key indicator of the market's maturity is a ...

  • April 13, 2004 13 Apr'04

    Cisco says despite risks, LEAP wasn't worth fixing

    Even though the LEAP security flaw could affect half of Cisco's WLAN customers, the company didn't patch it because more LEAP flaws could have emerged. While experts say LEAP should be abandoned immediately, they say Cisco's security strategy is ...

  • April 12, 2004 12 Apr'04

    IBM and Cisco battle remote attack vulnerabilities

    Both IBM and Cisco are warning of vulnerabilities that remote attackers could exploit to cause denial of service and other problems.

  • April 12, 2004 12 Apr'04

    Adtran deals itself into converged device game

    Adtran is taking on an established market with a new line of stand-alone switches and converged switch/routers, but one expert said the company could become an attractive low-end Cisco alternative.

  • April 06, 2004 06 Apr'04

    RouteScience update watches for WAN latency

    RouteScience has updated its product for verifying the performance of distributed applications over wide area networks. It can now ensure packets from voice or video apps have priority over other data.

  • April 02, 2004 02 Apr'04

    Gateway expands into networking realm

    Gateway is introducing its first wireless access points and enterprise switching products, hoping a combo of built-in features and low price points will appeal to the low-end enterprise market.

  • March 30, 2004 30 Mar'04

    Teens write script to attack Cisco devices

    Cisco has provided code upgrades and mitigation suggestions for numerous vulnerabilities in key networking solutions for which exploit code already exists.

  • March 30, 2004 30 Mar'04

    AT&T CEO: Company's future hinges on VoIP

    AT&T's CEO told attendees at the Gartner Symposium ITxpo that VoIP is key to his company's success, and it plans to aggressively pursue more enterprise customers.

  • March 30, 2004 30 Mar'04

    Turning up the volume on wireless VoIP

    Alcatel SA and Nortel Networks Ltd. both announced recently that they will launch wireless voice over IP products. And at the CTIA Wireless 2004 conference, voice over Wi-Fi received quite a bit of attention.

    To learn more about this ...

  • March 30, 2004 30 Mar'04

    Trillian won't fix enterprise IM interoperability

    Though the Trillian instant messaging client offers a limited form of IM integration, experts say it's not the answer to the enterprise IM interoperability problem. However, those experts are optimistic that interoperable IM products are coming soon.

  • March 29, 2004 29 Mar'04

    WebSphere changes will speak to users

    IBM is beefing up its WebSphere family with add-ons to enable users to access network data using voice commands.

  • March 29, 2004 29 Mar'04

    Instant message spam to triple this year

    New research pinpoints the culprits responsible for the sharp increase in junk messages being delivered via IM.

  • March 25, 2004 25 Mar'04

    Wireless experts call for an IP overhaul

    Experts at CTIA say that wireless carriers' voice and data networks are bound to merge, but Internet Protocol isn't robust enough to handle tomorrow's wireless backbone.

  • March 24, 2004 24 Mar'04

    'Moon' test prepares IPv6 for a soft landing

    Researchers who participated in the second phase of tests on "the next generation of the Internet" give the Moonv6 project a thumbs-up.

  • March 23, 2004 23 Mar'04

    Chambers: Networking success demands more than technology

    Cisco CEO John Chambers painted a picture of networking's future but said businesses must make some changes if they're going to effectively tap the technology.

  • March 22, 2004 22 Mar'04

    Cisco launches new security, manageability tools

    Cisco has released several new product upgrades and features as part of an effort to extend security and management functionality across the network.

  • March 18, 2004 18 Mar'04

    Face-off: Debating RFID

    Editor Susan Fogarty says RFID "ignorance" could delay its many advantages, but Executive Editor Jim Connolly says the technology may be one big, expensive mess. Who's right? You decide!

  • March 18, 2004 18 Mar'04

    Multiple Cisco products among those clobbered by OpenSSL flaw

    Cisco switches, routers and firewalls are vulnerable to attack due to a problem in OpenSSL that has other software vendors scrambling to cope.

  • March 17, 2004 17 Mar'04

    Gold Wire mends Staples' management woes

    Office supply retailer Staples once spent days making network configuration changes, but with an appliance from Gold Wire, changes can be done in a matter of hours.

  • March 16, 2004 16 Mar'04

    With WLAN updates, Extreme looks to go mainstream

    Extreme Networks is upgrading its wireless LAN products, trying to play catch-up as a late arrival to the market. An analyst says the company's products offer broad functionality, but that may not work in its favor.

  • March 15, 2004 15 Mar'04

    All-in-one security devices carry their weight

    All-in-one security devices are making it easier to keep distributed networks safe, and it's no wonder competition in the space is heating up. Despite earlier misgivings, one international firm explains how it's using a product from ServGate to ...

  • March 10, 2004 10 Mar'04

    WPA isn't enough to keep Wi-Fi networks safe

    WPA is the best wireless security protocol so far, but a top analyst at Gartner's Wireless and Mobile Summit said that it takes more than a few out-of-the-box security fixes to make wireless network safe.

  • March 09, 2004 09 Mar'04

    IM at work: Good or evil?

    For better or worse, instant messaging is growing in popularity.

  • March 08, 2004 08 Mar'04

    Enterprise IM leaves non-financial firms wanting

    Even though enterprise IM choices lack interoperability with public services, IM Planet speakers offered a few reasons why the systems are worth considering.

  • March 08, 2004 08 Mar'04

    Instant messaging creates security headaches for enterprises

    Instant messaging entered the enterprise and network environment by the back door, creating special challenges for security managers. Read this piece to see how to corral the technology.

  • March 04, 2004 04 Mar'04

    Experts see IM as foundation for new-age apps

    Experts at the Instant Messaging Planet Conference & Expo said that, in the absence of an IM strategy, "stealth" IM use could have dangerous consequences in the enterprise.

  • March 04, 2004 04 Mar'04

    Blended approach urged for emerging IM threats

    Companies that fail to secure their instant messaging technologies are setting themselves up for disaster, according to experts at the IM Planet conference this week in Boston.

  • March 03, 2004 03 Mar'04

    Hidden in New Hampshire, networking's coolest classroom

    DURHAM, N.H. -- Gerard Goubert was downright giddy. As Susan Fogarty and I were about halfway through our tour of the InterOperability ...

  • March 01, 2004 01 Mar'04

    Face-off: Instant messaging in the enterprise

    Is instant messaging at work a matter of pure convenience, or pure danger? Associate site editor Kara Gattine says IM use can improve productivity and make communication easier, but site editor Margaret Rouse says IM applications are distracting and...

  • February 26, 2004 26 Feb'04

    Face-off: The Can Spam Act

    New federal laws meant to stop spam have earned mixed reviews. TechTarget's Mark Lewis says the Can Spam Act is half-hearted, while editor Sarah Lourie says it's a good first step.

  • February 25, 2004 25 Feb'04

    Hardware hit by multiple vulnerabilities

    Fixes and mitigations are available for flaws in 3Com and Cisco hardware that could allow unauthorized access and denial of service attacks.

  • February 24, 2004 24 Feb'04

    Network Associates noses around for new Sniffer markets

    Network Associates is trying to expand the market for its venerable Sniffer network-analysis product line, but lagging revenue and image problems have put Sniffer's future in question.

  • February 24, 2004 24 Feb'04

    Giving Cisco credit where credit is due

    This past week was a busy one for Cisco Systems Inc. The networking giant found itself in an unusual position: playing catch up with its competitors. Oddly enough, in this case, that's a good thing.