diff --git a/content/posts/2020-04.md b/content/posts/2020-04.md
index 7af45c15c..2a3a2720d 100644
--- a/content/posts/2020-04.md
+++ b/content/posts/2020-04.md
@@ -457,4 +457,21 @@ $ curl -s "http://localhost:8081/solr/statistics/update?softCommit=true" -H "Con
 - Quoting them works for now until I can look into it and handle it properly in the script
 - This was about 400,000 hits in total purged from the Solr statistics
 
+## 2020-04-30
+
+- The TLS certificates on DSpace Test (linode26) have not been renewing correctly
+  - The log shows the message "No renewals were attempted"
+  - The `certbot-auto certificates` command doesn't list the certificate I have installed
+  - I guess this is because I copied it from the previous server...
+  - I moved the Let's Encrypt directory, got a new cert, then revoked the old one:
+
+```
+# mv /etc/letsencrypt /etc/letsencrypt.bak
+# /opt/certbot-auto certonly --standalone --email fu@m.com -d dspacetest.cgiar.org --standalone --pre-hook "/bin/systemctl stop nginx" --post-hook "/bin/systemctl start nginx"
+# /opt/certbot-auto revoke --cert-path /etc/letsencrypt.bak/live/dspacetest.cgiar.org/cert.pem
+# rm -rf /etc/letsencrypt.bak
+```
+
+- Run all system updates on DSpace Test and reboot it
+
 <!-- vim: set sw=2 ts=2: -->
diff --git a/docs/2020-04/index.html b/docs/2020-04/index.html
index 4fa093478..31af16ebe 100644
--- a/docs/2020-04/index.html
+++ b/docs/2020-04/index.html
@@ -25,7 +25,7 @@ On the same note, the one item Abenet pointed out last week now has a donut with
 <meta property="og:type" content="article" />
 <meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2020-04/" />
 <meta property="article:published_time" content="2020-04-02T10:53:24+03:00" />
-<meta property="article:modified_time" content="2020-04-29T17:33:34+03:00" />
+<meta property="article:modified_time" content="2020-04-30T10:44:23+03:00" />
 
 <meta name="twitter:card" content="summary"/>
 <meta name="twitter:title" content="April, 2020"/>
@@ -55,9 +55,9 @@ On the same note, the one item Abenet pointed out last week now has a donut with
   "@type": "BlogPosting",
   "headline": "April, 2020",
   "url": "https://alanorth.github.io/cgspace-notes/2020-04/",
-  "wordCount": "3186",
+  "wordCount": "3286",
   "datePublished": "2020-04-02T10:53:24+03:00",
-  "dateModified": "2020-04-29T17:33:34+03:00",
+  "dateModified": "2020-04-30T10:44:23+03:00",
   "author": {
     "@type": "Person",
     "name": "Alan Orth"
@@ -592,6 +592,24 @@ $ curl -s &quot;http://localhost:8081/solr/statistics/update?softCommit=true&quo
 <li>Quoting them works for now until I can look into it and handle it properly in the script</li>
 <li>This was about 400,000 hits in total purged from the Solr statistics</li>
 </ul>
+<h2 id="2020-04-30">2020-04-30</h2>
+<ul>
+<li>The TLS certificates on DSpace Test (linode26) have not been renewing correctly
+<ul>
+<li>The log shows the message &ldquo;No renewals were attempted&rdquo;</li>
+<li>The <code>certbot-auto certificates</code> command doesn&rsquo;t list the certificate I have installed</li>
+<li>I guess this is because I copied it from the previous server&hellip;</li>
+<li>I moved the Let&rsquo;s Encrypt directory, got a new cert, then revoked the old one:</li>
+</ul>
+</li>
+</ul>
+<pre><code># mv /etc/letsencrypt /etc/letsencrypt.bak
+# /opt/certbot-auto certonly --standalone --email fu@m.com -d dspacetest.cgiar.org --standalone --pre-hook &quot;/bin/systemctl stop nginx&quot; --post-hook &quot;/bin/systemctl start nginx&quot;
+# /opt/certbot-auto revoke --cert-path /etc/letsencrypt.bak/live/dspacetest.cgiar.org/cert.pem
+# rm -rf /etc/letsencrypt.bak
+</code></pre><ul>
+<li>Run all system updates on DSpace Test and reboot it</li>
+</ul>
 <!-- raw HTML omitted -->
 
   
diff --git a/docs/sitemap.xml b/docs/sitemap.xml
index 2eeb468f5..136ba5aa4 100644
--- a/docs/sitemap.xml
+++ b/docs/sitemap.xml
@@ -4,27 +4,27 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/2020-04/</loc>
-    <lastmod>2020-04-29T17:33:34+03:00</lastmod>
+    <lastmod>2020-04-30T10:44:23+03:00</lastmod>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/categories/</loc>
-    <lastmod>2020-04-29T17:33:34+03:00</lastmod>
+    <lastmod>2020-04-30T10:44:23+03:00</lastmod>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/</loc>
-    <lastmod>2020-04-29T17:33:34+03:00</lastmod>
+    <lastmod>2020-04-30T10:44:23+03:00</lastmod>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/categories/notes/</loc>
-    <lastmod>2020-04-29T17:33:34+03:00</lastmod>
+    <lastmod>2020-04-30T10:44:23+03:00</lastmod>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/posts/</loc>
-    <lastmod>2020-04-29T17:33:34+03:00</lastmod>
+    <lastmod>2020-04-30T10:44:23+03:00</lastmod>
   </url>
   
   <url>