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                <h1 id="premieres-configurations">Premières configurations</h1>
<p>Nous avons vu qu'il y a des éléments à configurer :</p>
<ul>
<li>
<p>hostname</p>
<p>le <strong>hostname</strong> se configure dans 2 fichiers, <strong>/etc/hosts</strong> et <strong>/etc/hostname</strong>.</p>
<p>Comme déjà vu dans les autres tutoriels, le hostname sous Debian se configure dans ces 2 fichiers.</p>
<p>J'ai choisi le nom <strong>ns1</strong> pour cette première machine (j'ai loué un deuxième vps pour servir de serveur dns secondaire). Je modifie le nom situé dans <strong>/etc/hostname</strong> pour <strong>ns1</strong> (avec mon éditeur texte.)</p>
<p>Modification du fichier <strong>/etc/hosts</strong> :</p>
<p>Le fichier <strong>/etc/hosts</strong> ainsi que le fichier <strong>.etc/hostname</strong> sont gérés par le programme cloud. Il faut donc, en suivant les recommandations ici <a href="https://docs.ovh.com/fr/public-cloud/modifier-le-hostname-dune-instance/">recommandations</a> modifier le fichier <strong>/etc/cloud/cloud.conf</strong>.</p>
<p>2 lignes sont à modifier:</p>
<pre><code>preserve_hostname: true
manage_etc_hosts: false
</code></pre>
<p>Ensuite nous pouvons modifier /etc/hostname et /etc/hosts</p>
<pre><code>debian@vps-0c47118c:~$ sudo vim /etc/hostname
debian@vps-0c47118c:~$ cat /etc/hostname
ns1
debian@vps-0c47118c:~$

debian@vps-0c47118c:~$ sudo vim /etc/hosts
debian@vps-0c47118c:~$debian@ns1:~$ sudo cat /etc/hosts
127.0.0.1   localhost

::1 localhost   ip6-localhost   ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

127.0.1.1   ns1.yojik.eu    ns1

debian@ns1:~$
</code></pre>
<p>On redémarre le vps pour qu'il prenne en compte nos modifications.</p>
<pre><code>debian@vps-0c47118c:~$ sudo systemctl reboot
debian@vps-0c47118c:~$ Connection to ns1.yojik.eu closed by remote host.
Connection to ns1.yojik.eu closed.
eric@aldebaran:~$
</code></pre>
<p>Et on se reconnecte.</p>
<p>Test :</p>
<pre><code>debian@ns1:~$ hostname
ns1
debian@ns1:~$ hostname -f
ns1.yojik.eu
debian@ns1:
</code></pre>
<p>Voilà notre hostname de configuré.</p>
</li>
<li>
<p>configuration de l'adresse IPV6</p>
<p>Celà se fait dans votre serveur DNS. J'ai ajouté la ligne suivante dans mon fichier de zone (et incrémenté le compteur.)</p>
<pre><code>ns1     IN  A   51.210.247.149
ns1         IN  AAAA    2001:41d0:404:200::6d3d
</code></pre>
<p>Test sur le serveur DNS :</p>
<pre><code>root@adara:/home/ericadmin# dig @localhost ns1.yojik.eu
; &lt;&lt;&gt;&gt; DiG 9.10.3-P4-Debian &lt;&lt;&gt;&gt; @localhost ns1.yojik.eu
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 20668
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 5

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;ns1.yojik.eu.          IN  A

;; ANSWER SECTION:
ns1.yojik.eu.       86400   IN  A   51.210.247.149
</code></pre>
<p>Test IPV6:</p>
<pre><code>;; ANSWER SECTION:
ns1.yojik.eu.       86400   IN  AAAA    2001:41d0:404:200::6d3d
</code></pre>
<p>Voilà, tout est bon pour cette partie.</p>
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