Network Security Best Practices and Products

  • 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 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 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 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 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 23, 2004 23 Feb'04

    With VoIP, Zultys makes every office the home office

    Zultys' new VoIP add-on can make remote offices seem like a single office to callers. An analyst says the offering proves that smaller VoIP vendors can successfully challenge the likes of Cisco.

  • February 17, 2004 17 Feb'04

    Cisco makes strong move on power over Ethernet

    Cisco catches up to the industry by supporting the IEEE's 802.3af power over Ethernet standard in several of its Catalyst switch lines, paving the way for a new generation of cheaper, more advanced PoE-enabled gear.

  • February 16, 2004 16 Feb'04

    Symbol switch simplifies remote Wi-Fi networks

    Symbol Technologies is trying to ease remote WLAN management with its latest product, an all-in-one switch, router and firewall. But now the wireless vendor faces tough competition from the likes of Cisco.

  • January 20, 2004 20 Jan'04

    Mesh networks weave their way into WLAN realm

    Experts say that mesh networking technology has the potential to change the face of the WLAN industry. But the technology, which would expand the reach of wireless networks while keeping costs down, may be slow in coming because of a lack of vendor ...

  • January 20, 2004 20 Jan'04

    Fortinet solidifies all-in-one security play

    Fortinet has released a new all-in-one security appliance for large organizations. One user lauds the product's capabilities, though it might not be as mature as competing products.

  • January 09, 2004 09 Jan'04

    Network management troubleshooting

    This chapter from Tips and Tricks Guide to Network Configuration Management focuses on network management.

  • January 05, 2004 05 Jan'04

    Analyst: Be ready to leave C&W data centers

    On Dec. 8, Cable & Wireless USA Inc. announced its plans to sell its Web hosting and Internet solutions business, with an affiliate of Gores Technology Group being the likely buyer. Reston, Va.-based C&W hosts services for some of the ...

  • December 24, 2003 24 Dec'03

    Puneet Mehta's 2004 industry predictions

    See what Puneet thinks 2004 will bring.

  • December 24, 2003 24 Dec'03

    Carrie Higbie's 2004 industry predictions

    What does our emerging expert think 2004 will bring? Find out here...

  • December 16, 2003 16 Dec'03

    2003's best expert advice

    Our best expert Q&A's of 2003

  • December 12, 2003 12 Dec'03

    Users, industry debate use of terms 'master' and 'slave'

    Los Angeles County has raised concerns about the use of the terms "master" and "slave" to refer to technology products. Some say the words are needlessly offensive, though the majority of voters in a poll disagree.

  • December 08, 2003 08 Dec'03

    Fortinet firewall follows all-in-one trend

    Fortinet has boosted its firewall platform with virus protection, content filtering and intrusion detection. An analyst says that such all-in-one perimeter products are becoming more popular and can lower a company's security costs.

  • November 20, 2003 20 Nov'03

    Planning key to Army's award-winning combat network

    The U.S. Army's 335th theater signal command deployed the military's largest combat network in just 120 days, a feat that earned it's Networking Innovator Award.

  • November 20, 2003 20 Nov'03

    Intrusion detection is not dead but evolving into intrusion prevention

    The evolution of intrusion-detection technology to intrusion prevention is simultaneously converging with firewalls. This will lead to a next-generation network security gateway, but it is an evolutionary process, not a destruction of the old.

  • November 13, 2003 13 Nov'03

    Cisco updates WLAN management engine

    Updates to Cisco's Wireless LAN Solutions Engine are intended to help create coverage maps, detect rogue access points and, eventually, enable wireless LANs to be managed as extensions of wired networks.

  • November 05, 2003 05 Nov'03

    IP telephony to usher in new focus on networks

    A coming wave of network-centric applications in areas such as IP telephony will force many companies to significantly upgrade their network infrastructures, a Gartner analyst said today at the Networking Decisions conference.

  • October 27, 2003 27 Oct'03

    Preaching the merits of protocol analysis

    Meet the networking industry's Pat Robertson. No, Laura Chappell doesn't save souls; she saves networks. As founder and senior protocol analyst with the San Jose, Calif.-based Protocol Analysis Institute, she travels from enterprise to enterprise, ...

  • October 22, 2003 22 Oct'03

    How does a firewall work?

    A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks. (The term also implies the security policy that is used with the programs.) An enterprise ...

  • October 21, 2003 21 Oct'03

    Will 2004 be the year of IM management?

    Interoperability and enterprise management were the hot issues at last week's IM Planet conference. While many believe that 2004 will be the year that IM management takes hold in the enterprise, the task itself is far from easy.

  • October 20, 2003 20 Oct'03

    Linksys routers caught up in open source dispute

    Linksys and other wireless networking vendors are involved in a copyright dispute over Broadcom's use of open source code in its chipsets. A resolution could involve making some chipset code available to the public, but an analyst says Linksys ...

  • October 16, 2003 16 Oct'03

    Onsite network analysis

    If you're looking to provide your company with an in depth look at your network performance and health -- let this be your guide.

  • October 14, 2003 14 Oct'03

    IPv6 Glossary

    Use this handy clickable, printable guide for definitions relating to IPv6.

  • October 02, 2003 02 Oct'03

    Size matters: Using jumbo packets on Gigabit Ethernet

    Learn about network idiosyncrasies and degradations as Dr. Jorgenson discusses both the benefits and hidden perils of using jumbo packets on Gigabit Ethernet.

  • September 26, 2003 26 Sep'03

    Regional disasters prompt new redundancy plans

    As enterprises grow more concerned about regional disasters, they are developing new ways to keep key data and applications available in times of trouble. Some firms are moving data centers further away or outsourcing, but others are turning remote ...

  • September 24, 2003 24 Sep'03

    Words-to-Go: Virtual LAN

    These terms coincide with our Learn IT: virtual LAN guide.

  • September 24, 2003 24 Sep'03

    LearnIT: Virtual LAN

    Learn the basics of VLANs.

  • August 26, 2003 26 Aug'03

    Implementing CIFS: Protocol negotiation

    Learn about protocol negotiation in Microsoft's The large installed base of CIFS (Common Internet Filesharing System) protocol suite.

  • August 21, 2003 21 Aug'03

    Network management security

    Take a look at how change management can improve network security, and how wireless devices will change the way you'll secure network devices.

  • August 20, 2003 20 Aug'03

    CCNA Basics: Network media types

    This chapter describes the common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless.

  • August 19, 2003 19 Aug'03

    Cisco pushes desktop Gigabit Ethernet

    Cisco Systems has released a pair of Gigabit Ethernet switches in an effort to bring the high-speed transmission technology to desktop users. The Catalyst 3750G-12S is geared toward enterprise, while the 2970G-24TS targets small and medium-sized ...

  • August 11, 2003 11 Aug'03

    The network architect: One part designer, one part psychiatrist

    Network design guru Nick Lippis is president of Hingham, Mass.-based Lippis Enterprises Inc., which produces the Lippis Report and will host the upcoming Enterprise Networks 2004 conference. ...

  • August 04, 2003 04 Aug'03

    Proxim enables 'last mile' WAN connectivity

    Proxim has introduced a new line of "last mile" wireless WAN products for service providers and enterprises that need building-to-building connectivity without fiber optic cabling.

  • July 29, 2003 29 Jul'03

    Interconnecting Cisco Network Devices: Internetworking concepts overview

    This chapter excerpt reviews the basic internetworking concepts including network components, planning hierarchical networks, and an in-depth discussion of the OSI model.

  • July 22, 2003 22 Jul'03

    NetScaler updates take pressure off servers

    NetScaler has enhanced its 9000 line of server optimization products to improve application performance over distributed networks. An analyst says NetScaler is helping companies deliver ERP and CRM applications over the Internet without huge, costly...

  • July 17, 2003 17 Jul'03

    What is a router?

    Routers are the mainstay of enterprise networking, but how well do you understand them? Read our rundown of exactly what a router is and does.

  • July 17, 2003 17 Jul'03

    Hush hush! Without due diligence, voices carry

    No one thinks much about the security of phone calls -- until they decide to put their voice systems on IP networks, says Ray Keneipp, vice president with the Midvale, Utah, research firm, Burton Group. Even though phone conversations are hardly ...

  • July 15, 2003 15 Jul'03

    Firewalls charred by network complexity

    Experts discussing the future of firewalls at the recent Burton Group Catalyst Conference 2003 say that the complexity in networks and applications desperately needs to be addressed.

  • July 07, 2003 07 Jul'03

    Neoteris launches Web-conferencing software

    Today, Neoteris plunged into the Web-conferencing market with a new product that will compete directly with market leader WebEx. The Neoteris Meeting Series utilizes the company's existing secure remote access technology, and beta users have given ...

  • June 25, 2003 25 Jun'03

    Cisco makes switch lines more niche friendly

    Cisco has added high-end features to its switching products for medium-sized businesses. The company is targeting schools and companies with remote offices, as those groups show more interest in IP telephony and bandwidth-intensive applications.

  • June 16, 2003 16 Jun'03

    Router Expert: The router is the firewall, part 1-- An overview of the IOS firewall

    Expert Michael Martin examines the available options in the IOS firewall for implementing dynamic access control.

  • June 06, 2003 06 Jun'03

    Understanding Layer 2, 3, and 4 protocols

    This chapter excerpt explains the layers of the OSI model, switching, TCP, UDP, and VRRP.

  • May 28, 2003 28 May'03

    Traffic and Everything Like Traffic Dealing with Network Performance Degradation

    This White Paper explains network idiosyncrasies and degradations and discusses best practices to identify these network problems, leading to their resolution.

  • May 21, 2003 21 May'03

    Voice, Video, and Data Network Convergence: Applications using the converged network

    Is the real driving force behind the deployment of converged networks saving money, or the advanced capabilities convergence makes possible? The real driving force, says this chapter of Voice, Video, and Data Network Convergence, is the ...

  • May 14, 2003 14 May'03

    Implementing Cisco IPv6 Networks: IPv6 Addressing

    Learn about IPv6 addressing and see sample configurations using the Cisco IOS technology to acquire basic knowledge to configure and operate routers in an IPv6 environment.

  • May 14, 2003 14 May'03

    OSPF Network Design Solutions: Redistribution

    When routing information from one routing protocol, such as OSPF, is redistributed into IGRP, you must be mindful of possible routing loops.

  • May 13, 2003 13 May'03

    Analyst: In converged networks, quality of service paramount

    Network convergence -- the movement of data, video and voice to one network -- is becoming a reality for a growing number of companies. While this approach can streamline a network, save capital costs and increase productivity, it can also cause a ...

  • May 08, 2003 08 May'03

    AT&T's Ianna: Last mile still the biggest challenge interviewed the president of AT&T's network services group, Frank Ianna, on the challenges around last mile technologies.

  • May 06, 2003 06 May'03

    Entuity update calms network storms

    The latest edition of Entuity's Eye of the Storm network management product examines several OSI layers to help avoid performance problems, and one test user says it has helped his company use fewer people to manage its network.

  • April 30, 2003 30 Apr'03

    N+I: CA's Kumar touts Unicenter on-demand

    Seemingly borrowing a page from IBM's playbook, Computer Associates CEO Sanjay Kumar used his N+I keynote Tuesday to introduce updates to CA's Unicenter network monitoring software. The updates enable on-demand access to as much network computing ...

  • April 30, 2003 30 Apr'03

    Special coverage: at Networld+Interop 2003

    We've gathered all our special coverage of Networld+Interop 2003 in one place. Check back frequently for our latest articles and other news and resources directly from the show floor in Las Vegas.

  • April 22, 2003 22 Apr'03

    Analyst, users differ on value of new network-monitoring approach

    Upstart network-management software vendor Fidelia is trying to earn a name for itself as an innovator in the network management field by tying network operations to specific business processes. An analyst says Fidelia's NetVigil provides a whole ...

  • April 21, 2003 21 Apr'03

    Getting started with the Cisco PIX firewall

    This chapter excerpt describes the basic preparation and configuration required to use the network firewall features of the Cisco PIX Firewall.

  • April 21, 2003 21 Apr'03

    Do you shoot trouble or does trouble shoot you? Practical studies in troubleshooting

    This chapter excerpt presents an introduction to troubleshooting; a review of standards, protocols, and industry models; and practical troubleshooting techniques.

  • April 07, 2003 07 Apr'03

    Business use of IM threatened, but FaceTime comes to the rescue

    Instant messaging is a fast, convenient way to communicate with employees and business partners, but security risks are forcing companies to ban the practice. Is your company next? With help from vendor FaceTime, one bank found a way to keep the IMs...

  • March 31, 2003 31 Mar'03

    New tool diagnoses dual-mode access points

    Diagnosing wireless LAN problems usually requires special tools, but the latest product from Network Instruments offers hardwired and wireless LAN monitoring -- including dual-mode 802.11a/b access points -- all in one. One network admin says the ...

  • March 21, 2003 21 Mar'03

    Traffic Engineering with MPLS: Quality of service

    This chapter excerpt focuses on quality of service (QoS) in traffic engineering, specifically covering the DiffServ architecture and interaction, EXP for packet forwarding, the Modular QoS CLI, and the emerging DiffServ-Aware Traffic Engineering ...

  • March 21, 2003 21 Mar'03

    Cisco OSPF Command and Configuration Handbook: Route redistribution

    This chapter excerpt focuses on route redistribution commands, including concrete examples and diagrams.

  • March 21, 2003 21 Mar'03

    More on standard for bandwidth utilization over WAN circuit

    More on standard for bandwidth utilization over WAN circuit

  • March 21, 2003 21 Mar'03

    DWDM Network Designs and Engineering Solutions: WDM network design

    This chapter excerpt provides the reader with a firm foundation in a wavelength division multiplexing (WDM) and the basics of optical design.

  • March 21, 2003 21 Mar'03

    Web-based VPNs offer cheaper, easier alternative

    Neoteris is one of a handful of companies now offering Web-based VPNs. According to a Neoteris customer and an analyst, client-free VPN products are gaining momentum because they provide a cheaper, easier way for remote workers to securely connect ...

  • March 20, 2003 20 Mar'03

    CTIA: School officials see value in on-campus wireless

    Wireless LANs can be expensive and complex, but educators from several universities at this week's CTIA Wireless 2003 conference say that wireless networks can provide a competitive advantage over other schools and create new ways to boost revenue.

  • March 12, 2003 12 Mar'03

    TrelliSoft SRM features give Tivoli a fresh look

    The director of strategy for Tivoli's storage group says IBM's newly upgraded DB2 Content Manager can work with Tivoli Storage Manager to help determine where to store data on a network. Theresa O'Neil also elaborates on the benefits of storage ...

  • March 10, 2003 10 Mar'03

    3Com preps for enterprise-market comeback

    With the sale of its carrier-class technology unit, 3Com announced that it was refocusing on the enterprise networking market. However, analysts say that the company needs to clear several hurdles before it can compete with the established vendors.

  • March 06, 2003 06 Mar'03

    Sidestepping wireless LAN money pits

    Enterprise wireless LANs aren't just for early adopters anymore, but that doesn't mean they aren't expensive. One Gartner analyst says IT professionals need to consider a range of hidden costs before deploying a wireless network.

  • March 05, 2003 05 Mar'03

    Health care firm recovers lost time with Intellitactics tool

    One major health care provider found itself spending too much time addressing security-related problems, but a network security management tool from Intellitactics has enabled the company to look at dozens of events in the same amount of time it ...

  • March 03, 2003 03 Mar'03

    Cometa, iPass deal heats up hot spots

    A deal announced today between iPass and Cometa Networks will allow iPass business customers to use Cometa's Wi-Fi hot spot network. Experts believe the deal could spur more businesses to use public high-speed Internet connections, despite current ...

  • February 24, 2003 24 Feb'03

    Cisco Field Manual: Catalyst Switch Configuration -- VLANs and trunking

    Learn about configuring, creating, and configuring VLANs on a switch in this book excerpt.

  • February 18, 2003 18 Feb'03

    Cost of 10 Gig Ethernet switches coming down

    The cost of 10 Gigabit Ethernet switches is finally starting to come down, but that doesn't mean it's time for most companies to invest in them yet.

  • February 06, 2003 06 Feb'03

    Cisco sharpens router blades for remote networks

    Over the last eight months, Cisco Systems Inc. has been in the process of redefining its approach to infrastructure for branch offices. In response to the growing need for increased bandwidth and functionality in remote offices, the networking ...

  • January 30, 2003 30 Jan'03

    Editorial: The ROI of VoIP? It's an oxymoron

    Why aren't we seeing IP phones on all of our desks, despite vendor promises of cost reductions? Apparently, the necessary investment far outweighs the savings.

  • January 20, 2003 20 Jan'03

    Not many making the LEAP to PEAP

    Many companies have turned to authentication for wireless network security. Cisco's LEAP protocol is a leader of this pack, but it's proprietary. A certificate approach to authentication called PEAP may yet hurdle LEAP.

  • January 16, 2003 16 Jan'03

    Troubleshooting IP Routing Protocols

    Read about debugs, configurations, and useful show commands to help you diagnose your router problems.

  • January 15, 2003 15 Jan'03

    Where do the risks to Cisco lie?

    With its incumbent competitors in disarray, Cisco Systems may make headway in the elusive service provider market, in addition to its core enterprise business, according to the451.

  • January 10, 2003 10 Jan'03

    Remote doctors land Whale for secure VPN access

    A Secure Sockets Layer VPN from Whale Communications is allowing physicians from a Kansas hospital to securely access e-mail, X-ray images and other patient information.

  • January 08, 2003 08 Jan'03

    IPv6 addressing: Format, types, ranges

    In this article on IPv6 addressing, learn about address types, address prefixes, special addresses and more.

  • December 19, 2002 19 Dec'02

    Learn IPv6: Understanding the IPv6 transition

    An overview of what's new in IPv6 with Silvia Hagen, author of IPv6 Essentials.

  • December 19, 2002 19 Dec'02

    Cisco networking module offers cold, hard cache

    Cisco Systems has released a new content engine networking module that enables local caching and delivery of high-bandwidth content.

  • December 19, 2002 19 Dec'02

    Lisa Phifer's 2003 predictions

    We asked our site experts to give us their industry predictions for the New Year. Here's what wireless LAN expert Lisa Phifer had to say.

  • December 19, 2002 19 Dec'02

    Brandon Ross' 2003 predictions

    We asked our site experts to give us their industry predictions for the New Year. Here's what intelligent routing expert Brandon Ross had to say.

  • December 18, 2002 18 Dec'02

    Networking pros: Justify your worth or risk elimination

    Network professionals need to expand their skills in 2003 are prove their worth to avoid joining the ranks of the unemployed, according to the year-ahead forecast of site editor Susan Fogarty.

  • December 09, 2002 09 Dec'02

    College expects wireless LAN to be big man on campus

    California Lutheran University has a fairly small wireless local area network in place for its students, although network administrators expect the number of users to balloon in the next few years.

  • December 02, 2002 02 Dec'02

    Groups aim to tame chaos of wireless LAN security

    Wireless LAN security is a sea of incompatible and proprietary solutions. That may soon change, however.

  • November 27, 2002 27 Nov'02

    Take the Challenge, set 15

    Take the Challenge, set 14

  • November 26, 2002 26 Nov'02

    Analyst: Cisco will shake up SAN market

    A recent report by the Aberdeen Group found that the storage area network (SAN) market is about to be shaken up by Cisco Systems Inc.'s new multi-protocol approach to switching.

  • November 26, 2002 26 Nov'02

    Brocade weaves road map to intelligent fabrics

    Brocade's recent move to acquire Rhapsody Networks, a maker of intelligent switching platforms, could potentially mark the beginning of a major new stage in the evolution of SANs, according to industry observers.

  • November 21, 2002 21 Nov'02

    Take the Challenge, set 14

    Take the Challenge, set 14

  • November 19, 2002 19 Nov'02

    How to identify an internet stalker

    Internet stalker/social engineering

  • November 15, 2002 15 Nov'02

    Analyst sees growing market for voice traffic monitoring tools

    Products that monitor and assess IP networks for voice traffic are likely to become mainstays for medium and large businesses, according to one analyst.

  • November 15, 2002 15 Nov'02

    Quick Takes: Yankee predicts switching consolidation

    In this edition of Quick Takes, new research from The Yankee Group predicts that the network switching market will see consolidation over the next three to five years.

  • November 14, 2002 14 Nov'02

    Localized Net traffic headed to the U.S.

    European Internet traffic is becoming more localized, according to a new study. Probe Research predicts that emerging broadband services are likely to carry this trend to the United States.

  • November 11, 2002 11 Nov'02

    Tool allows Okla. State to curb bandwidth hogs

    Oklahoma State University is using software from Compuware that allows network professionals to monitor the movement of thousands of applications across a network, including popular peer-to-peer file-sharing programs like Kazaa.

  • November 08, 2002 08 Nov'02

    Take the Challenge, part 12

    Take the Challenge, part 12