I personally prefer Debian GNU/Linux or Ubuntu GNU/Linux as operating systems. All my servers and workstations and even my notebook runs Debian GNU/Linux or Ubuntu GNU/Linux. I really like it, because it's a free OS with many easily installable packages.

• SSH over HTTPS

  How to make a SSH-Connection when only HTTPS is available
  HOWTO by Alexander Krogloth

  
  
• Ubuntu Linux on a Dell Latitude D630

  Some tricks for Ubuntu on Dell Latitudes
  HOWTO by Alexander Krogloth

  
  
• ISDN with a passiv card on Debian Tutorial

  ISDN with a passive card and Capisuite on Debian GNU/Linux (old)
  HOWTO by Alexander Krogloth

  
  
• RRDTool on Debian GNU/Linux Tutorial

  RRDTool on Debian GNU/Linux Tutorial - HOWTO by Alexander Krogloth

  
  
• Linux Iptables Firewall with a Webinterface Tutorial

  Using your firewall to turn on/off the internet connection of specific clients - HOWTO by Alexander Krogloth

  
  
• FAQ

  Some Unix/Linux FAQ

  
  
• xorg.conf

  Xorg config for Dualhead with ATI Radeon 9600 on Debian

  
  

• mp3 rename script

  A script which renames .mp3 files

  
  
• rotate script

  Rotates foo.jpg and foo_thumb.jpg

  
  
• thumbnails script

  Creates thumbnails for all photos in the specified directory

• watermark script

  Watermarks all photos in the specified directory