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    <title>Destroyer on Details...</title>
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      <title>Exim - Spool destroyer</title>
      <link>https://www.deepreflect.net/2010/02/17/exim-spool-destroyer/</link>
      <pubDate>Wed, 17 Feb 2010 14:10:41 +0000</pubDate>
       <guid isPermaLink="false">http://blog.deepreflect.net/?p=830</guid> 
      <description>&lt;p&gt;In case of massive spam attack.&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;&#34;&gt;&lt;code class=&#34;language-gdscript3&#34; data-lang=&#34;gdscript3&#34;&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; &lt;span style=&#34;color:#75715e&#34;&gt;#!/bin/bash&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; ls &lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;var&lt;/span&gt;&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;spool&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;exim&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;input&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt; &lt;span style=&#34;color:#f92672&#34;&gt;&amp;gt;&lt;/span&gt; &lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;tmp&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;delspoorexim
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; declare &lt;span style=&#34;color:#f92672&#34;&gt;-&lt;/span&gt;a ARRAY
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; exec &lt;span style=&#34;color:#ae81ff&#34;&gt;10&lt;/span&gt;&lt;span style=&#34;color:#f92672&#34;&gt;&amp;lt;&lt;/span&gt; &lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;tmp&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;delspoorexim
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; let count&lt;span style=&#34;color:#f92672&#34;&gt;=&lt;/span&gt;&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; &lt;span style=&#34;color:#66d9ef&#34;&gt;while&lt;/span&gt; read dels &lt;span style=&#34;color:#f92672&#34;&gt;&amp;lt;&amp;amp;&lt;/span&gt;&lt;span style=&#34;color:#ae81ff&#34;&gt;10&lt;/span&gt;; &lt;span style=&#34;color:#66d9ef&#34;&gt;do&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; rm &lt;span style=&#34;color:#f92672&#34;&gt;-&lt;/span&gt;fr &lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;var&lt;/span&gt;&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;spool&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;exim&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;input&lt;span style=&#34;color:#f92672&#34;&gt;/$&lt;/span&gt;dels
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; echo &lt;span style=&#34;color:#f92672&#34;&gt;$&lt;/span&gt;dels
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; ARRAY[&lt;span style=&#34;color:#f92672&#34;&gt;$&lt;/span&gt;count]&lt;span style=&#34;color:#f92672&#34;&gt;=$&lt;/span&gt;dels
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; ((count&lt;span style=&#34;color:#f92672&#34;&gt;++&lt;/span&gt;))
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; done
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; echo Number operation done: &lt;span style=&#34;color:#f92672&#34;&gt;$&lt;/span&gt;{&lt;span style=&#34;color:#75715e&#34;&gt;#ARRAY[@]}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; &lt;span style=&#34;color:#75715e&#34;&gt;#echo ${ARRAY[@]}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; exec &lt;span style=&#34;color:#ae81ff&#34;&gt;10&lt;/span&gt;&lt;span style=&#34;color:#f92672&#34;&gt;&amp;gt;&amp;amp;-&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span style=&#34;display:flex;&#34;&gt;&lt;span&gt; rm &lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;tmp&lt;span style=&#34;color:#f92672&#34;&gt;/&lt;/span&gt;delspoorexim
&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;</description>
      <content:encoded><![CDATA[<p>In case of massive spam attack.</p>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-gdscript3" data-lang="gdscript3"><span style="display:flex;"><span> <span style="color:#75715e">#!/bin/bash</span>
</span></span><span style="display:flex;"><span> ls <span style="color:#f92672">/</span><span style="color:#66d9ef">var</span><span style="color:#f92672">/</span>spool<span style="color:#f92672">/</span>exim<span style="color:#f92672">/</span>input<span style="color:#f92672">/</span> <span style="color:#f92672">&gt;</span> <span style="color:#f92672">/</span>tmp<span style="color:#f92672">/</span>delspoorexim
</span></span><span style="display:flex;"><span> declare <span style="color:#f92672">-</span>a ARRAY
</span></span><span style="display:flex;"><span> exec <span style="color:#ae81ff">10</span><span style="color:#f92672">&lt;</span> <span style="color:#f92672">/</span>tmp<span style="color:#f92672">/</span>delspoorexim
</span></span><span style="display:flex;"><span> let count<span style="color:#f92672">=</span><span style="color:#ae81ff">0</span>
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">while</span> read dels <span style="color:#f92672">&lt;&amp;</span><span style="color:#ae81ff">10</span>; <span style="color:#66d9ef">do</span>
</span></span><span style="display:flex;"><span> rm <span style="color:#f92672">-</span>fr <span style="color:#f92672">/</span><span style="color:#66d9ef">var</span><span style="color:#f92672">/</span>spool<span style="color:#f92672">/</span>exim<span style="color:#f92672">/</span>input<span style="color:#f92672">/$</span>dels
</span></span><span style="display:flex;"><span> echo <span style="color:#f92672">$</span>dels
</span></span><span style="display:flex;"><span> ARRAY[<span style="color:#f92672">$</span>count]<span style="color:#f92672">=$</span>dels
</span></span><span style="display:flex;"><span> ((count<span style="color:#f92672">++</span>))
</span></span><span style="display:flex;"><span> done
</span></span><span style="display:flex;"><span> echo Number operation done: <span style="color:#f92672">$</span>{<span style="color:#75715e">#ARRAY[@]}</span>
</span></span><span style="display:flex;"><span> <span style="color:#75715e">#echo ${ARRAY[@]}</span>
</span></span><span style="display:flex;"><span> exec <span style="color:#ae81ff">10</span><span style="color:#f92672">&gt;&amp;-</span>
</span></span><span style="display:flex;"><span> rm <span style="color:#f92672">/</span>tmp<span style="color:#f92672">/</span>delspoorexim
</span></span></code></pre></div>]]></content:encoded>
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