Cyrille Giquello

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====== Linux ======

[[/informatique/system_admin]]

===== Tools =====

  * Tester des distributions en ligne !
      * https://distrotest.net
  * LinuxLive USB Creator


===== Distributions =====

==== Ubuntu ====

[[/informatique/linux/Ubuntu]], [[/informatique/linux/XUbuntu]]


==== Small Linux ====

  * [[http://www.techradar.com/news/software/operating-systems/8-of-the-best-tiny-linux-distros-683552|8 of the best tiny Linux distros]] (posted on 2010-04-20)

=== SliTaz ===

[[http://www.slitaz.org/]]

=== xPUD ===

http://www.xpud.org

The desktop has never been this easy -- Get your favorite web browser with a simple web-based interface on top.

=== JeOS ===

JeOS is the abbreviation (pronounced "juice") for Just Enough Operating System as it applies to a software appliance.
JeOS refers to a customized operating system that fits the needs of a particular application. It is not a generic, one-size-fits-all operating system so it only needs to include the pieces of an operating system (e.g., Linux) required to support a particular application and any other third-party components contained in the appliance.

Quelques implémentations: [[wp>Just_enough_operating_system]]

=== DSL - Damn Small Linux ===

http://damnsmalllinux.org

===== Window manager =====

[[http://penguininside.blogspot.fr/2009/09/10-panel-dock-applications-for-your.html|10 Panel / Dock applications for your Window Managers]]

==== FluxBox ====

Documentation sur l'**environnement graphique extrêmement léger** FluxBox. L'installation et la configuration sont au programme:
  * [[http://fluxbox.sourceforge.net/docbook/en/html/|Fluxbox Documentation]] en anglais,
  * [[http://fluxbox.sourceforge.net/docbook/fr/html/|Fluxbox Documentation]] en français

[[http://www.linux.com/learn/tutorials/467792:creating-the-perfect-fluxbox-desktop-on-linux|Creating the Perfect Fluxbox Desktop on Linux]]

==== XFCE ====

==== OpenBox ====

from LXDE project (Openbox, PCmanFM and LXPanel).


===== Tips =====

==== Control Keys ====

How to unfreeze after accidentally pressing Ctrl-S in a terminal?

Control Keys: perfrom special functions on Shell

  * **Ctrl-S** : Pause Display
  * **Ctrl-Q** : Restart Display
  * **Ctrl-C** : Cancel Operation
  * **Ctrl-U** : Cancel Line
  * **Ctrl-D** : Signal End of File

==== Énergie ====

  * https://lesswatts.org

==== CPU affinity ====

Avec la commande "taskset" on peut demander au système (au scheduler) assigner un processus sur une ou plusieures CPU.

Package "schedutils".

Changer l'affinité pour un processus existant:
  taskset -c 1 -p 13545
  taskset -c 3,4 -p 13545
Ou lancer une commande:
  # assigne l'exécution de la commande /bin/zgrep à la 1<sup>ère</sup> CPU:
  taskset -c 0 /bin/zgrep

==== noatime & nodiratime ====

  * noatime: Access timestamps are not updated when a file is read.
  * nodiratime: Do not  update  directory  inode  access  times  on  this filesystem.

  $ /dev/sda7 /chroot ext2 defaults,noatime,nodiratime 1  2

  * [[http://tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap6sec73.html|The atime and noatime attribute]]
  * [[https://sites.google.com/site/wikirolanddelepper/recommanded-tuning/try-these-first/changing-ext3-default-to-noatime-nodiratime|Changing EXT3 default to NOATIME/NODIRATIME]]

==== APT ====

Installer des packages de différentes release (avec Apt-Pinning):
  * [[http://jaqque.sbih.org/kplug/apt-pinning.html|Apt-Pinning for Beginners]]
  * [[http://www.debian.org/doc/manuals/debian-reference/ch02.fr.html#_tweaking_candidate_version|Ajuster la version candidate]]

Automatiquement suivre les mise à jour :
  * APT::Periodic::* & apticron [[http://debian-handbook.info/browse/wheezy/sect.regular-upgrades.html|Keeping a System Up to Date]]