<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Systems on Antonio Cortés (DrZippie)</title><link>https://antoniocortes.com/tags/systems/</link><description>Recent content in Systems on Antonio Cortés (DrZippie)</description><generator>Hugo</generator><language>es-es</language><lastBuildDate>Sun, 01 Feb 2026 21:46:02 +0100</lastBuildDate><atom:link href="https://antoniocortes.com/tags/systems/index.xml" rel="self" type="application/rss+xml"/><item><title>Update GPG keys Ubuntu repositories</title><link>https://antoniocortes.com/en/update-gpg-keys-ubuntu-repositories/</link><pubDate>Sat, 09 Jan 2010 00:00:00 +0000</pubDate><guid>https://antoniocortes.com/en/update-gpg-keys-ubuntu-repositories/</guid><description>&lt;p&gt;Sometimes we may need to update the public keys of some Ubuntu repositories. A symptom is the following error:&lt;/p&gt;</description></item><item><title>View the 10 IPs with the most access</title><link>https://antoniocortes.com/en/view-the-10-ips-with-the-most-access/</link><pubDate>Fri, 15 May 2009 00:00:00 +0000</pubDate><guid>https://antoniocortes.com/en/view-the-10-ips-with-the-most-access/</guid><description>&lt;p&gt;A “recipe” to keep on hand:&lt;/p&gt;
&lt;div class="highlight"&gt;&lt;pre tabindex="0" class="chroma"&gt;&lt;code class="language-bash" data-lang="bash"&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;cat fichero.log &lt;span class="p"&gt;|&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="se"&gt;\ &lt;/span&gt;awk &lt;span class="s1"&gt;&amp;#39;{print $1}&amp;#39;&lt;/span&gt; &lt;span class="p"&gt;|&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="se"&gt;\ &lt;/span&gt;sort &lt;span class="p"&gt;|&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="se"&gt;\ &lt;/span&gt;uniq -c &lt;span class="p"&gt;|&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="se"&gt;\ &lt;/span&gt;sort -n &lt;span class="p"&gt;|&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="se"&gt;\ &lt;/span&gt;tail -10&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;</description></item><item><title>What to do in a disaster</title><link>https://antoniocortes.com/en/what-to-do-in-a-disaster/</link><pubDate>Mon, 23 Mar 2009 00:00:00 +0000</pubDate><guid>https://antoniocortes.com/en/what-to-do-in-a-disaster/</guid><description>&lt;p&gt;I have always said: ” &lt;em&gt;there are two types of people: Those who have lost data and those who have not yet&lt;/em&gt;“. Given this scenario, we try to do everything in our power to safeguard all the information we have on computers in the safest way.&lt;/p&gt;</description></item></channel></rss>