<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Let's Encrypt on John Billekens | Notes from the field</title><link>https://blog.j81.nl/categories/lets-encrypt/</link><description>Recent content in Let's Encrypt on John Billekens | Notes from the field</description><generator>Hugo -- gohugo.io</generator><language>en</language><copyright>© 2026 John Billekens</copyright><lastBuildDate>Sat, 23 May 2020 21:44:55 +0000</lastBuildDate><atom:link href="https://blog.j81.nl/categories/lets-encrypt/index.xml" rel="self" type="application/rss+xml"/><item><title>GenLeCertForNS New Update</title><link>https://blog.j81.nl/posts/genlecertforns-new-update/</link><pubDate>Wed, 19 Feb 2020 16:42:40 +0000</pubDate><guid>https://blog.j81.nl/posts/genlecertforns-new-update/</guid><description>&lt;p&gt;A lot of new users used my script after writing  my &lt;a href="https://www.citrix.com/blogs/2019/06/24/why-certificates-are-more-important-today-than-ever/" target="_blank" rel="noopener noreferrer"&gt;first blog article for Citrix&lt;/a&gt;. Since then I made some improvements and continuing to add new features. Today I released the latest version of my &amp;ldquo;GenLeCertForNS&amp;rdquo; script. Within this version I solved some issues and improved the overall speed (especially with larger orders).&lt;/p&gt;</description></item><item><title>Let's Encrypt Certificates on a NetScaler</title><link>https://blog.j81.nl/posts/lets-encrypt-certificates-on-a-netscaler/</link><pubDate>Thu, 06 Apr 2017 21:25:51 +0000</pubDate><guid>https://blog.j81.nl/posts/lets-encrypt-certificates-on-a-netscaler/</guid><description>&lt;p&gt;For a while now it&amp;rsquo;s possible to use &lt;a href="https://letsencrypt.org/" target="_blank" rel="noreferrer"&gt;Let&amp;rsquo;s Encrypt&lt;/a&gt; certificates, they are trusted (cross signed), secure and most of all FREE! There are already a lot of tools available to generate these certificates. I haven&amp;rsquo;t come across a tool or script to generate these certificates and upload them to a &lt;a href="https://www.citrix.com/netscaler" target="_blank" rel="noreferrer"&gt;Citrix NetScaler&lt;/a&gt;. So I thought why not build it myself. I already tried it in a previous &lt;a href="https://blog.j81.nl/2016/07/03/generate-an-lets-encrypt-certificate-what-can-be-used-on-the-netscaler/" target="_blank" rel="noreferrer"&gt;attempt&lt;/a&gt;, but I wanted more automation and thus I created this version. To learn more about the Let&amp;rsquo;s Encrypt, check &lt;a href="https://letsencrypt.org/how-it-works/" target="_blank" rel="noreferrer"&gt;how it works&lt;/a&gt;.. What my script does in very basic steps (for example you want a certificate for &lt;a href="https://www.domain.com" target="_blank" rel="noreferrer"&gt;www.domain.com&lt;/a&gt;): Ask LE (Let&amp;rsquo;s Encrypt) to validate &amp;ldquo;&lt;a href="https://www.domain.com" target="_blank" rel="noreferrer"&gt;www.domain.com&lt;/a&gt;&amp;rdquo; &lt;strong&gt;(1)&lt;/strong&gt; LE returns data &lt;strong&gt;(2)&lt;/strong&gt; among them:&lt;/p&gt;</description></item></channel></rss>