Data Center

Network, server, and storage administrators get valuable advice and best practices to help meet the challenges they face in keeping systems connected, available, and running at high efficiency.

  • Deb Shinder // August 12, 2008, 7:03 AM PST

    Ergonomics tips for IT pros

    Your IT job can compromise your comfort and even lead to injury or chronic physical problems. Deb Shinder offers this rundown of conditions to watch out for, along with some recommended ergonomic workarounds.


  • Andy Moon // August 12, 2008, 1:36 PM PST

    Doubts and potential solutions surround cloud computing

    The recent Gmail outage clearly highlights one of the major problems with cloud computing. If a service in the cloud becomes unavailable, it can affect thousands or tens of thousands of users rather than the far smaller number of users affected if a single company's servers go down.


  • Andy Moon // August 13, 2008, 10:41 AM PST

    Cybersecurity is in the news, as usual

    In a letter addressed to the next President, whoever that turns out to be, BT Security chief Bruce Schneier laid out three suggestions that he called too "detailed" to actually be adopted by either of the two campaigns, but the memo contained some fantastic direction for our next commander-in-chief.


  • David Davis // August 14, 2008, 11:00 PM PST

    How can Cisco Automatic Signature Extraction prevent zero-day virus attacks?

    The Cisco IOS is powerful and already running on your routers. You would think that it could play a part in this virus detection and prevention, right? Luckily, it can. David Davis explains how it works.


  • Michael Kassner // August 17, 2008, 10:23 AM PST

    DNS: Patched but not totally fixed

    DNS isn't out of the woods yet; there's a proof-of-concept exploit that successfully poisons the cache of a fully-patched and up-to-date DNS server. In order to keep everyone up to speed, I'd like to describe the attack vector and some possible fixes that we will be hearing about.


  • Rick Vanover // August 17, 2008, 6:01 PM PST

    Virtual switching configurations require network admin

    The virtual switch concept in virtualization environments is critical to an agile installation. Be sure to get a network admin checkout of the configuration, as the configurations could stand to be optimized based on the physical configuration.


  • Andy Moon // August 18, 2008, 1:33 PM PST

    Is your wireless network secure?

    In a recent tour of San Francisco, Oakland, and Palo Alto, a leading security expert discovered over 2600 networks, nearly a third of which were not using any encryption at all.


  • Kris Littlejohn // August 19, 2008, 12:58 AM PST

    What IT pros should know about repetitive stress injuries

    Long hours at the keyboard can lead to a host of problems for IT professionals. Here's a look at symptoms to watch out for, steps you can take to prevent injuries, and what to expect if you seek treatment for any type of RSI.


  • Andy Moon // August 19, 2008, 1:13 PM PST

    The cloud is getting more secure, except from the government

    Cloud computing is poised to be the next "disruptive technology" on the scene. It's a powerful concept, but the price may be your privacy. A little known provision of federal law allows officials to snoop into data stored at an ISP without taking the trouble of narrowly scoped warrants based on probable cause presented to a judge.


  • David Davis // November 5, 2008, 10:00 PM PST

    Learn how the Cisco IOS parser command can speed up response time

    On routers with large running configurations, the parser cache is used to speed up the "parsing" of that IOS configuration when the configuration is accessed and processed by the router. David Davis explains what the parser cache does and how it can help you.


  • Selena Frye // November 10, 2008, 2:59 AM PST

    Routing and switching essentials for beginners

    If you are a beginner looking for information on routing and switching devices, these short papers will introduce you to the basic concepts.


  • Rick Vanover // November 10, 2008, 2:39 PM PST

    How do you manage a mobile mini-datacenter?

    Every network administrator may at some point create or support a mobile collection of equipment for use between sites or at other destinations. Rick Vanover shares some strategies that can be used to manage this type of network.


  • Michael Kassner // November 11, 2008, 3:15 AM PST

    Botnets: Keep computers up to date or else

    Getting rooted by a drive-by dropper is fast becoming the predominate method of involuntarily joining a botnet. The simplest way to avoid this is to keep your computers up to date. Easier said than done? Well, it doesn't have to be.


  • David Davis // November 13, 2008, 10:00 PM PST

    Check out the most powerful Cisco routers ever made

    They may not be appropriate for your home, office, or even your enterprise, but some of the most powerful routers in the world make it possible for you to surf the Web and send e-mail around the globe. David Davis introduces you to Cisco's lineup of service-provider routers.


  • Rick Vanover // November 16, 2008, 10:15 AM PST

    Use iperf for quick and easy network tests

    Being able to quantify latency in terms other than millisecond response time is important when determining the quality of a network. One tool that can help administrators do just that is iperf.