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#acmesh

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Stefans Weblog<p>Let's Encrypt stellt die @Benachrichtigung für ablaufende Zertifikate ein. <br>Ein wunderbarer Grund den ganzen Prozess für die eigenen Systeme mit acme.sh zu automatisieren.</p><p>Ein Beispiel: Für die eigene Nextcloud wird von Certbot auf acme.sh gewechselt.</p><p><a href="https://mastodon.social/tags/letsencrypt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>letsencrypt</span></a> <a href="https://mastodon.social/tags/acmesh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>acmesh</span></a> <a href="https://mastodon.social/tags/nextcloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nextcloud</span></a> <a href="https://mastodon.social/tags/raspberrypi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>raspberrypi</span></a></p><p><a href="https://strobelstefan.de/blog/2025/03/27/nextcloud_und_acmesh_-_automatische_aktualisierung_von_lets_encrypt_zertifikaten.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">strobelstefan.de/blog/2025/03/</span><span class="invisible">27/nextcloud_und_acmesh_-_automatische_aktualisierung_von_lets_encrypt_zertifikaten.html</span></a></p>
DrScriptt<p>I started a discussion with fellow <a href="https://oldbytes.space/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sysadmin</span></a> about updating <a href="https://oldbytes.space/tags/BIND" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BIND</span></a> / <a href="https://oldbytes.space/tags/named" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>named</span></a> config to migrate from the overly permissive allow-update {…} stanzas to the more restricted update-policy {…} stanzas using targeted grant statements.</p><p>The idea being to allow the <a href="https://oldbytes.space/tags/acme" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>acme</span></a> client to only be able to update (add / delete) _acme-challenge TXT instead of any record in the zone.</p><p>Old:</p><p>allow-update {<br> TSIG_KEY_NAME;<br>};</p><p>New:</p><p>update-policy {<br> grant TSIG_KEY_NAME name _acme-challenge.example.net TXT;<br>};</p><p><a href="https://oldbytes.space/tags/acmesh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>acmesh</span></a> <a href="https://oldbytes.space/tags/certbot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>certbot</span></a></p>