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.

  • Michael Kassner // December 11, 2008, 5:54 AM PST

    New zero-day IE7 exploit is in the wild

    A new IE7 exploit is now making the rounds. It has already been incorporated in toolkits that install information-stealing trojans. Read on to learn more.


  • Selena Frye // December 10, 2008, 5:18 AM PST

    Troubleshooting guide for common TCP/IP problems

    If your network troubleshooting is more art than science, then you might need to try a more methodical approach. Here is a basic guide that will help you organize your troubleshooting efforts.


  • Brad Bird // December 9, 2008, 2:46 AM PST

    Take advantage of IT forums and user-group benefits: Get your Geek on!

    Community user groups are a great way to find other professionals in your area and expand your list of contacts. You can often leverage knowledge from these professionals or even obtain work for each other.


  • Michael Kassner // December 8, 2008, 7:37 AM PST

    CSRF attacks: Home DSL routers are vulnerable

    Home DSL routers aren't secure from specialized CSRF attacks. Once the DSL router is owned, attackers can have their way with the internal network. Read on to learn about CSRF and what you can do to prevent CSRF attacks.


  • Paul Mah // December 7, 2008, 1:59 PM PST

    Unorthodox applications of 3G video

    As of this past October, there were some 300 million 3G UMTS subscribers around the world. Actual airtime is not available, but anecdotal evidence suggests that uptake on the video abilities afforded by 3G remains dismally low. Paul Mah suggests some possible applications of 3G video for the IT professional.


  • Rick Vanover // December 7, 2008, 10:13 AM PST

    Untangle version 6.0 released with new features

    The Untangle open source gateway is one of the more attractive free SOHO products. Version 6.0 has been released with new features and fixes. Rick Vanover showcases them in this blog post.


  • Michael Kassner // December 6, 2008, 10:26 AM PST

    MS08-067: Not updating has created a monster botnet

    Microsoft created MS08-067 to fix a serious vulnerability. MS even felt the problem was critical enough to justify an out-of-band release of the update. They were right; find out why.


  • David Davis // December 4, 2008, 5:24 AM PST

    10 dumb things you can do to your Cisco router and how to fix them

    David Davis points out the dumb things you can do to mess up your Cisco router and how to fix them. He also lists some important resources for each step to give you even more detailed instructions.


  • Brad Bird // December 2, 2008, 10:47 PM PST

    Are your virtual servers really secure?

    Brad Bird takes a look at virtual servers and their level of security compared to physical servers. What makes a virtual server a richer target for attack? Are you prepared for the security considerations?


  • Michael Kassner // December 1, 2008, 5:21 AM PST

    Srizbi Botnet: Life after McColo

    After McColo was shut down, the Srizbi botnet, a major source of spam and over 300,000 strong, was effectively quieted. Not for long, Spam levels eventually started ramping back up. How is that possible with no command and control servers? Read on to find out.


  • Rick Vanover // November 30, 2008, 5:01 PM PST

    More tools for easy network testing: NTttcp and NetCPS

    Microsoft's NTttcp and NetCPS offer a quick and easy way to gauge the peformance of a network between two hosts in a listener and sender configuration. Rick Vanover introduces you to these two handy tools.


  • Michael Kassner // November 26, 2008, 10:20 AM PST

    Rootkits: Is removing them even possible?

    The people developing rootkits are smart and financially motivated to design rootkits that evade detection. So what’s the answer? Michael Kassner reviews some of the approaches you can try.


  • Selena Frye // November 25, 2008, 5:52 AM PST

    The seven types of power problems

    One of the basic parts of your network infrastructure is, of course, your power supply. It's as basic as you can get, but you can't afford not to understand how your systems are powered and what kinds of problems to look out for.


  • Brad Bird // November 25, 2008, 2:37 AM PST

    Dissecting default NTFS permissions: Looking under the hood

    Consultant Brad Bird takes a look at NTFS file permissions and their default application. Make sure you understand what each of them includes and how they are inherited through the hierarchy to close up security gaps.


  • Rick Vanover // November 23, 2008, 11:21 AM PST

    Handy iperf commands for quick network testing

    The free network tool iperf is among the more easy-to-use on the Internet today. Rick Vanover shows some frequently used commands in iperf that you can use for quick network testing.