'system' Tag

  • Switching Java versions on a Debian/Ubuntu system

    July 26, 2010

    I recently found some issues with the openjdk Ubuntu/Debian default Java implementation. Specifically I had issues with their web start support (javaws). I found that the Sun implementation of Java did not have such a deficiency and the Sun implementation is available through the regular Ubuntu/Debian package sources. I installed the Sun implementation and wanted [...]

  • Using “noatime” on a running Linux system

    July 24, 2010

    When upgrading my Ubuntu system my /etc/fstab got overwritten by the upgrade process. It seems that the new /etc/fstab file did not keep my old preferences for file systems. I didn’t notice this for some time but what I did notice was that my system was sluggish. After some time I recalled that I had [...]

  • WordPress and UNIX security (part 2)

    July 9, 2010

    In an effort to secure my blog I once again did battle with the mighty Word press. It seems that you can run a perfectly healthy blog with no write permissions by the HTTP server (usually www-data) to your service directory. What do I suggest? Change owner ship to root on your blog area. When [...]

  • Purging unneeded packages on a debian system

    June 24, 2010

    If you want to remove all packages which are in the “rc” state (means that the package was already removed but only it’s configuration remained) you can use the following command as administrator: dpkg –purge `dpkg –list | grep “^rc” | tr -s ” ” | cut -d ” ” -f 2` Take care to [...]

 
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