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+ <li class="toctree-l2"><a class="reference internal" href="../../tutoraspi/Fail2ban/">Contrer les attaques de force brute</a>
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+ <li>Premières configurations</li>
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+ <h1 id="premieres-configurations">Premières configurations</h1>
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+<p>Nous avons vu qu'il y a des éléments à configurer :</p>
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+<ul>
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+<li>
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+<p>hostname</p>
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+<p>le <strong>hostname</strong> se configure dans 2 fichiers, <strong>/etc/hosts</strong> et <strong>/etc/hostname</strong>.</p>
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+<p>Comme déjà vu dans les autres tutoriels, le hostname sous Debian se configure dans ces 2 fichiers.</p>
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+<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>
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+<p>Modification du fichier <strong>/etc/hosts</strong> :</p>
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+<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>
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+<p>2 lignes sont à modifier:</p>
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+<pre><code>preserve_hostname: true
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+manage_etc_hosts: false
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+</code></pre>
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+<p>Ensuite nous pouvons modifier /etc/hostname et /etc/hosts</p>
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+<pre><code>debian@vps-0c47118c:~$ sudo vim /etc/hostname
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+debian@vps-0c47118c:~$ cat /etc/hostname
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+ns1
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+debian@vps-0c47118c:~$
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+
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+debian@vps-0c47118c:~$ sudo vim /etc/hosts
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+debian@vps-0c47118c:~$debian@ns1:~$ sudo cat /etc/hosts
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+127.0.0.1 localhost
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+
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+::1 localhost ip6-localhost ip6-loopback
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+ff02::1 ip6-allnodes
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+ff02::2 ip6-allrouters
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+
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+127.0.1.1 ns1.yojik.eu ns1
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+
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+debian@ns1:~$
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+</code></pre>
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+<p>On redémarre le vps pour qu'il prenne en compte nos modifications.</p>
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+<pre><code>debian@vps-0c47118c:~$ sudo systemctl reboot
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+debian@vps-0c47118c:~$ Connection to ns1.yojik.eu closed by remote host.
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+Connection to ns1.yojik.eu closed.
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+eric@aldebaran:~$
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+</code></pre>
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+<p>Et on se reconnecte.</p>
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+<p>Test :</p>
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+<pre><code>debian@ns1:~$ hostname
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+ns1
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+debian@ns1:~$ hostname -f
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+ns1.yojik.eu
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+debian@ns1:
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+</code></pre>
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+<p>Voilà notre hostname de configuré.</p>
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+</li>
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+<li>
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+<p>configuration de l'adresse IPV6</p>
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+<p>Celà se fait dans votre serveur DNS. J'ai ajouté la ligne suivante dans mon fichier de zone (et incrémenté le compteur.)</p>
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+<pre><code>ns1 IN A 51.210.247.149
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+ns1 IN AAAA 2001:41d0:404:200::6d3d
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+</code></pre>
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+<p>Test sur le serveur DNS :</p>
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+<pre><code>root@adara:/home/ericadmin# dig @localhost ns1.yojik.eu
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+; <<>> DiG 9.10.3-P4-Debian <<>> @localhost ns1.yojik.eu
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+; (2 servers found)
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+;; global options: +cmd
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+;; Got answer:
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+;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20668
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+;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 5
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+
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+;; OPT PSEUDOSECTION:
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+; EDNS: version: 0, flags:; udp: 4096
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+;; QUESTION SECTION:
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+;ns1.yojik.eu. IN A
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+
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+;; ANSWER SECTION:
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+ns1.yojik.eu. 86400 IN A 51.210.247.149
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+</code></pre>
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+<p>Test IPV6:</p>
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+<pre><code>;; ANSWER SECTION:
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+ns1.yojik.eu. 86400 IN AAAA 2001:41d0:404:200::6d3d
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+</code></pre>
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+<p>Voilà, tout est bon pour cette partie.</p>
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