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  • Mining the Deep Web: Search strategies that work

    Just because a Web search engine can't find something doesn't mean it isn't there. You may be looking for info in all the wrong places.

  • Selecting a Domain Name

    If you want to market your products and services online, one of the most important initial steps is selecting a domain name.

  • Use less paper, save money

    A few years ago, there was lots of excited chatter about how we were on the brink of becoming a paperless society. No longer would offices be cluttered up by reams of reports. Faxes would be replaced by electronic communiques. Even items that it seemed would have to be printed because they required a physical signature would disappear as we learned to trust digital signatures on e-mails.

  • More telecom contract tips

    OK, you're in the home stretch. You've issued your telecom RFP, assessed the responses and concluded your contract negotiations. You've got rates you can live with and services that represent a net improvement over what you're getting now. You're done, right?

  • Structuring your telecom sales strategy

    Techies usually hate dealing with sales folk, because we seem to come from different worlds. Engineering is about honesty: Either that bridge will hold or it won't. Sales is about deceit (or so we geeks assume): Lie to the customer and cash the commission.

  • The devil's guide to Windows Vista security

    Microsoft, as you probably know, has spent a lot of time and millions of dollars to make Windows Vista more secure and ultimately to protect users from themselves.

  • Powerline: the next big thing?

    For many moons now, PC publications have talked about ways to connect devices wirelessly. As far as wired connections went, innovations have seemed thin on the ground. However, a way of physically connecting devices using something called Powerline -- a concept that has been around for three or four years -- is now making its presence felt in the U.K.

  • Kernel space: Buried in warnings

    The 2.6.19-rc4 prepatch release did not go quite as well as the developers might have liked; some confusion over the return type for an internal function led to an undesirable mixing of pointer and integer types in the depths of the block layer. As it turns out, gcc noticed this problem and duly issued warnings about it, but nobody saw them before the mistaken patch was merged and the resulting kernel shipped. This is, in other words, a problem which should have been easily avoidable.

  • Go wild with widgets

    Have you embraced the widget movement yet? If not, you will.

  • Fighting security threats from IM and rogue Web access

    Businesses of all sizes today are graduating from the first stage of Internet use, dominated by e-mail, to a new stage characterized by increasing use of the Internet for research and of instant messaging (IM) to supplement telephone and e-mail for communications both inside the company and with clients and business partners.

  • Ten tips to secure client VPNs

    If you have given your trusted employees and key contractors remote access to your network via a client virtual private network (VPN), congratulations! By now, you have seen the productivity and cost benefits from allowing collaboration that surmounts geographical separation.

  • Defeating cross-site scripting threats

    Cross-site scripting, often abbreviated XSS, is a class of Web security issues. A recent research report stated that XSS is now the top security risk.

  • Blocking kids from certain Web sites

    Blocking Web site access to overly curious users in an open environment poses policy and technical challenges. You can meet the challenge with simple tools and target the result to a selected audience.

  • PowerPoint from the gadget in your pocket

    Can you really deliver a PowerPoint presentation directly from an Apple iPod, RIM BlackBerry, or Palm Treo? The answer is "yes," and I'm going to tell you how to do it.

  • Preparing for disasters

    Thinking about disaster recovery, a year after Hurricane Katrina, and on the fifth anniversary of 9/11, it's a good idea to look at contingency planning, especially for the organizations that would need to operate during a disaster. This is a different issue than transferring operations to a remote site. There are various issues in operating in a disaster environment, usually starting with electrical power but also extending to employee concerns and the need for resupply.

  • Explaining WPA2

    Can you explain the differences between WPA and WPA2 and provide some information on the different features and functionality?

  • Top Ten Mistakes that Hurt Your Google Ranking

    We do a lot of work on our sites to ensure that our readers can find our content through search engines, particularly Google. Over the 10 years we've been publishing media Web sites we've successfully avoided pitfalls that could damage referrals from search engines. We've also made some significant mistakes - from which we've recovered! Consequently we thought we would share the experience we've gained by putting together our definitive top ten list of mistakes that can damage your referrals from Google (we'll let you guess which ones we were guilty of).

  • How to restrain a wild Wi-Fi signal

    Say you wanted to protect your Wi-Fi network from surrounding buildings. The most obvious way to do this would be to secure the devices on your network using the wireless security protocol of choice. A very effective, but more extreme, way to do this would be to secure the building itself by making it act as a Faraday cage, shielding the radio frequency waves used by Wi-Fi.

  • Linux primer for networkers: Using the sniffer

    A few years back, I used an old 486 running Red Hat Linux and tcpdump to easily diagnose a client's denial-of-service attack, illustrating the benefits of creating a powerful network analysis tool from "scrap" parts. There are plenty of tools to build a similar Windows-based network analyzer, but Linux can run on machines that can't efficiently run Windows.

  • 802.11T puts WLANs to the test

    Buyers of Wi-Fi equipment and systems must be assured that all products have the performance and stability to carry mission-critical applications and data. However, testing of Wi-Fi, or 802.11, devices and systems for performance and stability is a challenge for the industry because of the complexity of the 802.11 protocol. That is compounded by the inherent mobility of the wireless devices and the prevalence of radio frequency interference.

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