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58 lines
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<title>Astuces SSH - Alexis Métaireau</title>
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<a class="" href="https://blog.notmyidea.org/" id="site-title">Blog</a>
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<li><a class="" href="https://blog.notmyidea.org/pages/projets.html">Projets</a></li>
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<header>
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<h1 class="post-title">Astuces SSH</h1>
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<time datetime="2012-12-27T00:00:00+01:00">27 décembre 2012</time>
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<h2 id="tunelling">Tunelling</h2>
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<p>Parce que je m'en rapelle jamais (tête de linote):</p>
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<div class="highlight"><pre><span></span><code>$ ssh -f hote -L local:lolnet.org:destination -N
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</code></pre></div>
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<h2 id="sshconfig">.ssh/config</h2>
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<p>(merci <a href="http://majerti.fr">gaston</a> !)</p>
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<p>La directive suivante dans .ssh/config permet de sauter d'hôte en hôte
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séparés par des "+" :</p>
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<div class="highlight"><pre><span></span><code><span class="err">Host *+*</span>
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<span class="err"> ProxyCommand ssh $(echo %h | sed</span>
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<span class="err">'s/+[^+]*$//;s/\([^+%%]*\)%%\([^+]*\)$/\2 -l \1/;s/:/ -p /')</span>
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<span class="err">PATH=.:\$PATH nc -w1 $(echo %h | sed 's/^.*+//;/:/!s/$/ %p/;s/:/ /')</span>
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</code></pre></div>
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<p>On peut donc spécifier des "sauts" ssh du style:</p>
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<div class="highlight"><pre><span></span><code><span class="n">ssh</span> <span class="n">root</span><span class="mf">@91.25.25.25</span><span class="o">+</span><span class="mf">192.168.1.1</span>
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</code></pre></div>
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<p>Ensuite on peut essayer de rajouter:</p>
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<div class="highlight"><pre><span></span><code><span class="err">Host <label_pour_mon_serveur_privé></span>
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<span class="err"> user <monuser(root)></span>
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<span class="err"> IdentityFile <chemin vers ma clé ssh pour le serveur publique></span>
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<span class="err"> hostname ip_serveur_publique+ip_serveur_privé</span>
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</code></pre></div>
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