Difference between pages "Install/fr/Overview" and "Hostname"

< Install‎ | fr(Difference between pages)
 
(Hosts case)
 
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<noinclude>
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w.i.p
{{InstallPart|vue d'ensemble du processus d'installation, téléchargement du LiveCD et instructions de démarrage.}}
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==Introduction==
</noinclude>
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A hostname is a unique name created to identify a machine on a network. In computer networking, a hostname  is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic communication such as the World Wide Web, e-mail or Usenet. Hostnames may be simple names consisting of a single word or phrase, or they may be structured.
== Vue d'ensemble de l'installation ==
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==Configuration==
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In Funtoo Linux <code>/etc/conf.d/hostname</code> is the only configuration file for setting a hostname. In OpenRC framework <code>/etc/conf.d/foo</code> is the configuration file for a corresponding Init script <code>/etc/init.d/foo</code>.  With the case of hostname, default value in <code>/etc/conf.d/hostname</code> is set to ''localhost'', means when system boots and OpenRC's <code>/etc/init.d/hostname</code> script started a hostname getting only ''localhost'' name.  How it looks?  In your shell promt this will look in following way, an example for root:
 +
<console>
 +
localhost ~ # ##i## Hello :)
 +
</console>
 +
Let's play a bit with a configuration. Open <code>/etc/conf.d/hostname</code> with your favorite editor and set a hostname of your choice.  Below, I will use a real examples  from one of my working test boxes.
 +
<console>
 +
localhost ~ # ##i## nano /etc/conf.d/hostname
 +
</console>
 +
Let's set it to hostname="oleg-stable.host.funtoo.org". Save the file and restart  a hostname service:
 +
<console>
 +
localhost ~ # ##i## service hostname restart
 +
</console>
 +
Now, let's examine our changes, after a restarting a hostname
 +
<console>
 +
oleg-stable ~ # ##i## Hello :)
 +
</console>
 +
== Diving deeper==
 +
Notice, that in above output we seeing a shortened hostname and not a FQDN (Fully Qualified Domain Name). Don't be frustrated. This is  how  default bash promt <code>PS1</code> set. To get nice promts, please, consult http://www.ibm.com/developerworks/library/l-tip-prompt/ <-- this one should be on Funtoo wiki :)
 +
Another way to test our settings is using a '''hostname''' command. Here we will show only  some of it's features. Let's try to execute '''hostname''' command:
 +
<console>
 +
oleg-stable ~ # ##i## hostname
 +
oleg-stable.host.funtoo.org
 +
</console>
 +
Now we see our fully qualified domain name hostname just how we configured it in <code>/etc/conf.d/hostname</code> in above paragraph. To get a short hostname we need to set '''-s ''' (short) argument to hostname command.
 +
<console>
 +
oleg-stable ~ # ##i## hostname -s
 +
oleg-stable
 +
</console>
 +
Good! Hostname offers more then just displaying a system host name but can also set one. Let's try:
 +
<console>
 +
oleg-stable ~ # ##i## hostname foo.bar.baz
 +
oleg-stable ~ # ##i## hostname
 +
foo.bar.baz
 +
</console>
 +
As you can see, we changed a hostname on-the-fly. This is not recommended way.
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{{fancywarning|Please, notice that using '''hostname''' command to configure will work temporary for a current session and will be reverted back to a value set in <code>/etc/conf.d/hostname</code> file with next system restart.}}
  
Voici une vue d'ensemble de base de l'installation de Funtoo Linux:
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Now that we got a brief description of a hostname and basic configuration steps its time to reflect another important case, which is directly related to a Funtoo Linux hostname generation, a hosts.
  
# [[#Live CD|Téléchargement et démarrage sur le Live CD de votre choix]].
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==Hosts case==
# [[#Préparation du disque|Préparation du disque dur]].
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As per man page <code>hosts</code> stands for static table lookup for hostnames and it's configuration file is <code>/etc/hosts</code>.
# [[#Création des systèmes de fichier (formatage)|Création]] et [[#Montage des partitions|montage]] des fichiers du système.
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# [[#Installion du Stage 3|Installation de l'archive du stage 3 de Funtoo]] de votre choix.
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# [[#Chroot|Chroot dans le nouveau système]].
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# [[#Téléchargement de l'arbre Portage|Téléchargement de Portage]].
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# [[#Configuration du système|Configuration du système]] et [[#Configuration de votre réseau|de l'accès au réseau]].
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# [[#Configuration et installation du noyau Linux|Installation du noyau]].
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# [[#Installation du chargeur d'amorçage|Installation du chargeur d'amorçage]].
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# [[#Étapes de fin|Complétion de l'installation, étapes de fin]].
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# [[#Redémarrage|Redémarrage du PC]].
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=== Live CD ===
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Funtoo ne fournit pas un Live CD officiel. Nous recommandons l'utilisation de [http://www.sysresccd.org/ System Rescue CD], un Live CD basé sur le sysème d'exploitation Gentoo. Il s'agit d'un Live CD offrant des utilitaires et des outils de toutes sortes et il supporte autant les systèmes d'architecture 32-bit que 64-bit. Téléchargez-le en allant à cette adresse :
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http://www.sysresccd.org/Download
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{{Note|Si vous utilisez une vieille version de System Rescue CD, '''assurez-vous de sélectionner l'option <code>rescue64</code> du menu de démarrage si vous installez un système 64-bit'''. Par défaut, System Rescue CD démarre en mode 32-bit bien que la dernière version tente de détecter automatiquement un processeur d'architecture 64-bit.}}
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Revision as of 16:38, February 20, 2015

w.i.p

Introduction

A hostname is a unique name created to identify a machine on a network. In computer networking, a hostname is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic communication such as the World Wide Web, e-mail or Usenet. Hostnames may be simple names consisting of a single word or phrase, or they may be structured.

Configuration

In Funtoo Linux /etc/conf.d/hostname is the only configuration file for setting a hostname. In OpenRC framework /etc/conf.d/foo is the configuration file for a corresponding Init script /etc/init.d/foo. With the case of hostname, default value in /etc/conf.d/hostname is set to localhost, means when system boots and OpenRC's /etc/init.d/hostname script started a hostname getting only localhost name. How it looks? In your shell promt this will look in following way, an example for root:

localhost ~ #  Hello :)

Let's play a bit with a configuration. Open /etc/conf.d/hostname with your favorite editor and set a hostname of your choice. Below, I will use a real examples from one of my working test boxes.

localhost ~ #  nano /etc/conf.d/hostname

Let's set it to hostname="oleg-stable.host.funtoo.org". Save the file and restart a hostname service:

localhost ~ #  service hostname restart

Now, let's examine our changes, after a restarting a hostname

oleg-stable ~ #  Hello :)

Diving deeper

Notice, that in above output we seeing a shortened hostname and not a FQDN (Fully Qualified Domain Name). Don't be frustrated. This is how default bash promt PS1 set. To get nice promts, please, consult http://www.ibm.com/developerworks/library/l-tip-prompt/ <-- this one should be on Funtoo wiki :) Another way to test our settings is using a hostname command. Here we will show only some of it's features. Let's try to execute hostname command:

oleg-stable ~ #  hostname
oleg-stable.host.funtoo.org

Now we see our fully qualified domain name hostname just how we configured it in /etc/conf.d/hostname in above paragraph. To get a short hostname we need to set -s (short) argument to hostname command.

oleg-stable ~ #  hostname -s
oleg-stable

Good! Hostname offers more then just displaying a system host name but can also set one. Let's try:

oleg-stable ~ #  hostname foo.bar.baz
oleg-stable ~ #  hostname 
foo.bar.baz

As you can see, we changed a hostname on-the-fly. This is not recommended way.

Warning

Please, notice that using hostname command to configure will work temporary for a current session and will be reverted back to a value set in /etc/conf.d/hostname file with next system restart.

Now that we got a brief description of a hostname and basic configuration steps its time to reflect another important case, which is directly related to a Funtoo Linux hostname generation, a hosts.

Hosts case

As per man page hosts stands for static table lookup for hostnames and it's configuration file is /etc/hosts.