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Computer networking news, reviews, solutions, and analysis for IT professionals
  • CWNA certification course

    Posted October 29, 2003 - 2:04 am

    Passing the CWNA course can help your wireless career. But is it worth a $1,000 software prep guide? This review seeks to find out.
  • Wireless certifications update

    Posted October 29, 2003 - 1:57 am

    What wireless certifications are ITworld.com readers dealing with in the field? Newsletter regular James Gaskin collates your responses.
  • CWNA: What to know

    Posted October 29, 2003 - 1:53 am

    The CWNA exam is the first step on a four-exam certification process for WLAN administrator. This study guide outline will help you prepare.
  • The Certified Wireless Network Professional program

    Posted October 29, 2003 - 1:49 am

    The CWNP program bills itself as "the industry standard for vendor-neutral wireless LAN training and wireless LAN certification." If you're a wireless network admin, you owe it to yourself to find out about this program.
  • WLAN education's latest: Security and telephony

    Posted October 29, 2003 - 1:45 am

    As wireless telephony becomes more and more important to companies, they'll want certified administrators who can run their wireless VoIP apps securely. Two major purveyors of wireless LAN curricula now offer certifications for just that purpose.
  • Cisco certifies WLAN admins

    Posted October 29, 2003 - 1:39 am

    Cisco is the 800 pound gorilla of the networking world, and its sysadmin certifications carry a lot of weight. Recently, to complement its push into the wireless LAN space, the company began offering WLAN administrator certification, as well.
  • Inside the Certified Wireless Network Administrator exam

    Posted October 29, 2003 - 1:36 am

    If you're getting ready to the CWNA exam, this article can serve as an excellent resource to help you prepare. It includes the details you need to know, and points you in directions for knowledge that you might not have picked up on the job. (Free registration required to read full article.)
  • Cutting the cord: Wireless certification is grueling and potentially lucrative

    Posted October 29, 2003 - 1:29 am

    There are a number of vendor-neutral certifications now available for WLAN administrators. This article details the path you can follow from a mere Certified Wireless Network Administrator to a full-fledged Certified Wireless Network Professional - with a potential boost in career prospects to go along with it.
  • WLAN skills on radar?

    Posted October 29, 2003 - 1:25 am

    With WLAN standards and vendors still in a state of flux, it might be best to hold out before investing in a potentially expensive certification, according to this article. Nevertheless, some IT skills certification companies are dipping their toes into the market, and this article also provides an exhaustive list of them.
  • Is grid computing finally a reality?

    Posted October 28, 2003 - 2:25 pm

    It probably won't come as a great surprise that the answer to the title question is a resounding "sort of". Yes, IBM, HP, Sun, Oracle are developing and even selling grid technologies but the ultimate promise of grids is still just out of reach.
  • Sun wins another pay-as-you-go pact

    Posted October 28, 2003 - 1:47 pm

    Like earlier agreements with ACS and SchlumbergerSema, a new deal between Sun and CGI will allow CGI to use Sun's N1 architecture to provide utility computing services to its customers.
  • The healing powers of technology

    Posted October 23, 2003 - 3:26 pm

    SupportSoft has jumped on IBM's autonomic computing bandwagon, announcing Monday at Gartner ITExpo that the company has begun shipping its real-time service management (RTSM) software platform.
  • Grid computing deployment: ServerWatch poll

    Posted October 23, 2003 - 2:41 pm

    Curious what your peers have to say about where grid computing infrastructures will be most widely deployed? Well, look no further.
  • IBM launches assessment services

    Posted October 23, 2003 - 11:15 am

    IBM Corp. is ready to dispatch "personal trainers" to companies whose data centers are out of shape. On Thursday, IBM is announcing new services called Infrastructure Management Assessment Services designed to evaluate a data center's condition and prescribe ways to whip it into shape.
  • Microsoft unleashes Exchange Server 2003

    Posted October 21, 2003 - 10:22 am

    Microsoft Corp. today launched Exchange Server 2003, officially starting its quest to convert the large number of users on the aging version 5 of the e-mail server software.
  • WLAN performance and availability: Challenges and solutions

    Posted October 21, 2003 - 1:05 am

    802.11-based WLANs are deceptively easy to set up. But enterprise network users are accustomed to high levels of performance and reliability, levels that WLANs often can't reach - at least not right out of the box. These articles describe the current state of performance and availability for WLANs, and offer tips and tools for improving those qualities in your own setup.
  • Technology sought to merge cellular and Wi-Fi

    Posted October 21, 2003 - 12:46 am

    Now that most developed nations are blanked by overlapping WLAN and WWAN networks, the next wireless frontier is integration. At the upcoming CITA Wireless I.T. show, a number of vendors will be showing off products that make use of both cellular and Wi-Fi networks.
  • Understanding wireless antennas

    Posted October 20, 2003 - 11:54 pm

    If your WLAN is plagued by poor performance you may be overlooking an easy fix: better antennas mean better WLAN performance. This tip will get you thinking about where you can add improvements. (Free registration required to access site.)
  • Simplified WLAN analysis: Using AirMagnet to improve your WLAN

    Posted October 20, 2003 - 11:44 pm

    If you want to analyze and improve the performance of your WLAN, the right tools help. This article shows how you can use AirMagnet, an application that runs on a Wi-Fi enabled handheld, to map out a WLAN. You'll learn how to make decisions on improvements based on that information.
  • Interference from cordless phones

    Posted October 20, 2003 - 11:41 pm

    When it comes to WLAN performance and availability, network administrators have to worry about a whole host of things that didn't apply in the wired world - like interference from common wireless phones. Read on to find out if your telephone and your WLAN are at odds.
  • The critical issue of operational support

    Posted October 20, 2003 - 11:32 pm

    The only way to maintain network performance and availability is providing excellent operational support. However, many network admins may not know how to provide such support for a wireless LAN. This article will get you up to speed.
  • Enhancements and performance evaluation of wireless local area networks

    Posted October 20, 2003 - 10:44 pm

    802.11-based networks are convenient, but their performance could be improved. This paper illustrates some of the cutting-edge research being done to improve the performance and reliability of WLANs. (Paper is in PDF format.)
  • Maximize wireless LAN performance

    Posted October 20, 2003 - 10:38 pm

    You've set up a wireless LAN in your enterprise - but there are steps you can take to improve performance and reliability. This article will get you started.
  • Wireless LAN performance improvement

    Posted October 20, 2003 - 10:32 pm

    Once people get over the ease of setting up a WLAN, the first thing they generally want to do is improve its performance. This tutorial will step you through an exhaustive set up measures to help you improve the performance and availability of your 802.11-based network.
  • The next high concept: Grid computing

    Posted October 17, 2003 - 4:38 pm

    Grid computing is not the next killer app, but it is a high concept and it will be the next big thing. So what should enterprises do? Watch and wait is the best advice.
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