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Learning Debian

Config Files

The files in /etc are system wide files and are loaded first. Files in /home/[username] are personal preference files loaded for each users and are loaded second. If there are conflicts between files in /etc and files in the users home directory, the files in the users home directory override those in /etc.

CREATED 2012-11-20 21:11:12.0


UPDATED 2012-11-20 21:11:18.0

Package installers

There are three tools to install packages:

  • dpkg - the older package installer that is being replaced by...
  • apt - Advanced Package Tool and
  • dselect - a menu driven package updating tool.

dpkg is the most primative and doesn't seem to be as robust as apt

apt is the fastest to use. This is how it works: apt-get [action] [package-name]

dselect is the easiest and probably to most robust. It is menu driven so that makes it easier.

CREATED 2012-11-11 13:33:26.0


UPDATED 2012-11-20 21:16:28.0

Stop the Screen From Blanking...

setterm -blank 0 GRUB_CMDLINE_LINUX_DEFAULT="quiet consoleblank=0"

To stop the screen from going blank on a network monitor or any machine that needs to report on a on going basis:

On a single tty:


  • edit /etc/default/grub - this is a file
  • add the parameter consoleblank=0 to the GRUB_CMDLINE_LINUX_DEFAULT= line

Should look something like this...

Then reboot the server.

CREATED 2012-12-03 19:40:12.0


UPDATED 2017-07-25 14:19:40.0


W: Failed to fetch http://security.debian.org/dists/wheezy/updates/main/binary-amd64/Packages Something wicked happened resolving 'security.debian.org:http' (-11 - System error)

While doing an update you get this error...

Check your /etc/nsswitch.conf file. In the host list remove wins. apt doesn't like that.

CREATED 2017-09-18 01:29:15.0


UPDATED 2017-09-18 01:29:19.0


Environment Variables
Run Levels

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