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  • Basic disk wiping in Windows - cipher /w

    If you want to perform basic disk wiping to clean free space on your harddrive, you can use the cipher tool which is included in the Windows OS installation (as from Windows 2000 SP3 on; for earlier Windows 2000 pre-SP3, download it over here or better install SP4). It's not supported on Windows XP Home...
    Posted to Weblog by bart on Jul 26, 2005
  • SQL Server Demo - The eXtended Procedure Hell

    Preparing a little demo on SQL Server 2005 CLR showing the benifits of the CLR compared too the dangers of using extended procedures to extend the database's functionality. I decided to start Visual C++ 6.0 (:o), create a new project, choose the Extended Stored Procedure Wizard and call the project xpdemo...
    Posted to Weblog by bart on Jul 24, 2005
  • Windows Security - Ownership have-to-knows

    As from .NET v2.0 on, the System.Security namespace has a series of classes that allow you to control ACLs and other related security aspects of various objects on the operating system, with the most common example being files. When exploring this stuff I came across one of the tricky properties of the...
    Posted to Weblog by bart on Jul 19, 2005
  • Security Configuration Wizard - scwcmd.exe

    One of the new features in SP1 of Windows Server 2003 is the Security Configuration Wizard (I've been blogging about this already in the past). There is however more than the wizard-driven UI to use the technology of SCW, more specifically the scwcmd.exe command-line tool . I've used the tool yesterday...
    Posted to Weblog by bart on Jul 17, 2005
  • Strong named assemblies and the GAC inside out

    This is a level 400 post :-). So, I do assume you know already what the words assembly, GAC and strong naming mean. Nevertheless, I'll try to define these concepts first in a short way: Definitions Assembly : code-unit in .NET, containing MSIL-code; typically saved in a .dll or .exe file although concepts...
    Posted to Weblog by bart on Jul 15, 2005
  • Security - passphrases

    I've checked my blog history today and I was very amazed not to find a post on passphrases yet (although I had the very opinion to have written something about it earlier, maybe it was just an e-mail or so). Well, what is it? One of the places where natural language and computer technology are sitting...
    Posted to Weblog by bart on Jul 11, 2005
  • Unsecured WLANs in practice

    This evening my laptop offered me the option to connect to an unsecured WLAN with an unknown SSID in the living room. Pretty cool :o. Even cooler to get a valid IP address, have no MAC filtering, therefore allowing me to connect to the internet with just one click. Even more, the router admin pages are...
    Posted to Weblog by bart on Jun 22, 2005
  • SenderID - 4 steps to make your domain ready

    Take a look at http://www.anti-spamtools.org for more information.
    Posted to Weblog by bart on Mar 07, 2005
  • Fighting spam on blogs - the sequel

    Recently, I received quite some spam from the same IP addresses, so I decided to fight back by extending the spam trigger on the SQL Server database in order to block comments from a list of IP addresses. Pretty simple to do and effective. Here's a quick code snippet: CREATE TRIGGER BlockBlackIPs ON...
    Posted to Weblog by bart on Mar 04, 2005
  • Security in figures and charts

    Take a look at Steve Riley's website for a nice comparison of various technologies on the field of security advisories, based on queries to secunia. You can find it over here http://www.steveriley.ms/sbr/default.aspx .
    Posted to Weblog by bart on Feb 20, 2005
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