News

Networking and communication

  • August 27, 2006 27 Aug'06

    Duplex mismatch

    This article helps networking engineers understand the issues behind duplex mismatch, one of the most troublesome problems in today's Ethernet networks. Learn why duplex mismatch occurs and how you can prevent it with autonegotiation and hard coding.

  • August 22, 2006 22 Aug'06

    Column: VoIP applications fuel the next wave of VoIP innovation

    The first phase of VoIP is nearing the end and corporations will soon find a variety of third-party desktop applications that run on VoIP. Has VoIP improved the day-to-day for end users?

  • August 21, 2006 21 Aug'06

    Briefs: VoiceCon in the news

    This week at VoiceCon we saw everything from managed VoIP services to IP phones made to make mobile workers right at home, wherever they are.

  • August 16, 2006 16 Aug'06

    Cisco struggles with SIP firewall flaw

    Cisco admits it can't reproduce a SIP security flaw in its PIX firewall that was first identified by a researcher at Black Hat.

  • August 16, 2006 16 Aug'06

    Briefs: VoIP in the news

    Asterisk maker Digium gets major funding; Quintum's VoIP switch offers backup option for branch office; The Cisco Store makes the case for unified communications.

  • August 16, 2006 16 Aug'06

    Wireless security push fueled by paranoia

    Wireless security became a necessity for Intermagnetics, but when the company used its access points to monitor the spectrum, performance suffered.

  • August 15, 2006 15 Aug'06

    Cisco says it can't reproduce PIX flaw

    Ever since a researcher at Black Hat outlined a flaw in the PIX firewall, Cisco has been trying to reproduce the security hole. So far, the company has been unsuccessful.

  • August 15, 2006 15 Aug'06

    Cisco boosts VoIP certification

    The upgraded CCNP midlevel Cisco certification now incorporates VoIP, security and wireless to boost converged network skills among enterprise professionals.

  • August 14, 2006 14 Aug'06

    Wireless security boost for laptops outside the office

    >Most companies do a pretty good job with wireless security within the office walls, but what happens when end users take their laptops home -- or to Starbucks?

  • August 06, 2006 06 Aug'06

    VoIP call quality on the decline

    Advances in technology have made VoIP more common, but that hasn't stopped VoIP call quality from dropping steadily over the last 18 months, according to a recent study by Brix Networks.

  • August 03, 2006 03 Aug'06

    Vendors reject preferential knowledge sharing

    While Cisco continues to investigate a potential PIX firewall flaw, it and other vendors say sharing security information quickly and indiscriminately is always the best policy.

  • August 02, 2006 02 Aug'06

    RFID security issues are cause for corporate concern

    Although small in nature, RFID tags could be used to attack databases and corrupt critical information. It's a growing concern as corporate RFID use skyrockets, yet experts say there are reasonable ways to mitigate the risks and gain the business ...

  • August 02, 2006 02 Aug'06

    Possible Cisco zero-day exploit revealed at Black Hat

    Details of an alleged flaw related to SIP and PIX appliances, briefly mentioned in a Wednesday Black Hat presentation, are being kept under wraps as Cisco and US-CERT investigate.

  • July 26, 2006 26 Jul'06

    Blue Cross bears burden of 'no wireless' policy

    Blue Cross of Idaho had a "no wireless" policy on paper but never really enforced it. That is, until a team of auditors said the company had better do something.

  • June 01, 2006 01 Jun'06

    BlueCat appliance offers rock-solid security

    Hot Pick: The Adonis 1000 appliance bundles DNS and DHCP into an enterprise-class appliance for the centralized secure operation of network addressing.

  • February 08, 2006 08 Feb'06

    MEF drives up quality standards in carrier Ethernet

    The Metro Ethernet Forum (MEF) has expanded its certification program to include quality of service parameters in network kit, to ensure service providers can give their customers the service they demand.

  • November 28, 2005 28 Nov'05

    Step 6: Configuring wireless clients

    With wireless networks proliferating it is a good idea to understand what it takes to build a VPN for a wireless gateway. Contributor and Microsoft MVP Brien Posey details the necessary steps in this step-by-step guide.

  • November 22, 2005 22 Nov'05

    Influential survey says security 'set back by 6 years'

    Update: The SANS Top 20 vulnerability list for 2005 shows the bad guys attacking flawed apps and paying more attention to network holes.

  • November 21, 2005 21 Nov'05

    Wireless security: Public Wi-Fi could open security holes

    A Michigan county is working to give everyone within its borders wireless Internet access. But when it comes to security, users are on their own.

  • November 20, 2005 20 Nov'05

    Wireless security crucial to railway safety

    A transportation firm uses wireless technology to keep the trains running on time. But securing mobile devices isn't easy when they're spread across the globe.

  • November 16, 2005 16 Nov'05

    Wireless security: Companies deal with software updates

    A health care provider found it could use wireless technology to dramatically boost patient care. But first it had to figure out how to deploy security updates over a wireless network.

  • October 12, 2005 12 Oct'05

    Quiz: What's your infosec IQ?

    We've collected our toughest questions to see how well you stand up to a challenge. Put your knowledge to the test and let us know how you do.

  • October 10, 2005 10 Oct'05

    Don't discount software distribution sites as attack vectors

    There's a potential downside to update sites, which offer virtually untapped riches to bad guys wanting to compromise your network. Just ask the author.

  • September 26, 2005 26 Sep'05

    NHS trust creates wireless record

    University College London Hospitals (UCLH) NHS Trust has created the UK's largest single wireless network to support 7,000 users across eight hospitals.

  • September 20, 2005 20 Sep'05

    SAS drives product roundup

    Serial-attached SCSI (or SAS) drives offer significant storage capacity at a much lower cost, while maintaining reasonable performance. Find out who the vendors are in this market.

  • September 13, 2005 13 Sep'05

    Ethernet users given greater product interoperability

    A new network hardware testing standard will encourage enterprises, service providers and telcos to adopt cheaper and more flexible Ethernet technology for data, voice and video connectivity.

  • September 11, 2005 11 Sep'05

    VoIP turns up the heat on firewalls

    New research shows that many organizations are increasingly concerned about VoIP security and plan to augment their firewalls within the next year, changing the landscape of the firewall market.

  • September 05, 2005 05 Sep'05

    Extending perimeters

    The news that, up until 2006, 70% of successful wireless local area network (WLAN) attacks will be because of the misconfiguration of WLAN access points and client software is disquieting on a number of levels.

  • August 30, 2005 30 Aug'05

    Myfip's Titan Rain connection

    LURHQ researchers say the Myfip worm is a good example of the malcode Chinese hackers are using in the so-called Titan Rain attacks against U.S. government networks.

  • August 30, 2005 30 Aug'05

    Passive fingerprinting: Applications and prevention

    In this excerpt from the book Silence on the Wire, author Michal Zalewski discusses both malicious and beneficial uses for passive fingerprinting, and how to prevent successful passive fingerprinting on your network.

  • August 29, 2005 29 Aug'05

    Storage area network quiz

    It's all about the storage area network (SAN) -- man. The more you know, the easier it is. Take our SAN quiz and find out where you stand as a SAN guru.

  • July 26, 2005 26 Jul'05

    VoIP encryption to have 'Pretty Good Privacy

  • July 12, 2005 12 Jul'05

    Tony Asaro: Blogs and more

    Read what Tony Asaro is talking about in this month's blog, and listen to him speak in a number of webcasts.

  • June 13, 2005 13 Jun'05

    Gartner underscores five overblown threats

    Two Gartner analysts debunk five overhyped security risks they claim are causing companies to miss out on some key emerging technologies.

  • May 11, 2005 11 May'05

    A new era of computer worms: Wireless mobile worms

    In this excerpt of Chapter 9 from "The Art of Computer Virus Research and Defense," author Peter Szor dissects the Cabir worm.

  • March 31, 2005 31 Mar'05

    External datacentre suits Selfridges

    Selfridges has outsourced its datacentre and other IT functions to Retail Assist. The outsourcer will provide network management,...

  • March 08, 2005 08 Mar'05

    Small businesses targeted with RFID

  • December 01, 2004 01 Dec'04

    Phreaks love Bluetooth

    Bluetooth is becoming the vector of choice for next-generation phone phreakers to swipe files from other users, make calls or render mobile phones completely useless.

  • August 27, 2004 27 Aug'04

    Over-specify when buying low cost replacement for Frame Relay

    A project manager reveals how a VPN saved £275,000 a year

  • July 07, 2004 07 Jul'04

    Deals abound for high-end storage

    Think high-end storage is out of your reach? Maybe not. Conversations with several storage buyers recently suggest that vendors are scrambling to give buyers the best possible deals.