{"id":51225,"date":"2025-12-29T12:30:00","date_gmt":"2025-12-29T18:30:00","guid":{"rendered":"https:\/\/www.rosehosting.com\/blog\/?p=51225"},"modified":"2025-10-31T08:05:26","modified_gmt":"2025-10-31T13:05:26","slug":"how-to-install-lets-encrypt-on-debian-13","status":"publish","type":"post","link":"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/","title":{"rendered":"How to Install Let&#8217;s Encrypt on Debian 13"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2025\/10\/how-to-install-lets-encrypt-on-debian-13.webp\" alt=\"How to install Let's Encrypt on Debian 13\" class=\"wp-image-51230\" srcset=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2025\/10\/how-to-install-lets-encrypt-on-debian-13.webp 1024w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2025\/10\/how-to-install-lets-encrypt-on-debian-13-300x169.webp 300w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2025\/10\/how-to-install-lets-encrypt-on-debian-13-150x84.webp 150w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2025\/10\/how-to-install-lets-encrypt-on-debian-13-768x432.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>In this guide, we&#8217;ll learn how to install Let&#8217;s Encrypt on Debian 13. Let&#8217;s Encrypt is a non-profit certificate authority that provides free, automated OpenSSL\/TLS certificates for websites to enable HTTPS encryption. HTTPS encryption is a security protocol that encrypts data exchanged between the browser and the website (server). A secure connection is necessary to protect sensitive information and ensure the privacy and integrity of data. Let&#8217;s Encrypt SSL certificates are valid for 90 days to encourage automation and limit damage if a key is compromised. For Let&#8217;s Encrypt to be installed on a domain, the domain must be valid and point to a server IP address; otherwise, the installation will fail.<\/p>\n\n\n\n<p>Installing Let&#8217;s Encrypt is a straightforward process that can take less than a minute. Before that, however, there are some prerequisites that must be met, which will be explained in the following paragraphs. Let&#8217;s install Let&#8217;s Encrypt on Debian 13!<\/p>\n\n\n\n<!--more-->\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69f478e3f10d9\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69f478e3f10d9\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#Prerequisites\" >Prerequisites<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#Step-1-Update-the-system\" >Step 1. Update the system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#Step-2-Install-Apache-Web-Server\" >Step 2. Install Apache Web Server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#Step-3-Create-Apache-Virtual-Host-File\" >Step 3. Create Apache Virtual Host File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#Step-4-Install-Lets-Encrypt-SSL-certificate\" >Step 4. Install Let&#8217;s Encrypt SSL certificate<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-prerequisites\"><span class=\"ez-toc-section\" id=\"Prerequisites\"><\/span>Prerequisites<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.rosehosting.com\/debian-vps-hosting\/\">Debian VPS Hosting<\/a><\/li>\n\n\n\n<li>User privileges: root or non-root user with sudo privileges<\/li>\n\n\n\n<li>A valid domain name pointed to the server IP address<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-step-1-update-the-system\"><span class=\"ez-toc-section\" id=\"Step-1-Update-the-system\"><\/span>Step 1. Update the system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before we start the Let&#8217;s Encrypt installation, we need to update the packages on Debian 13 to their latest versions. To do that, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt update -y &amp;&amp; sudo apt upgrade -y<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-step-2-install-apache-web-server\"><span class=\"ez-toc-section\" id=\"Step-2-Install-Apache-Web-Server\"><\/span>Step 2. Install Apache Web Server<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Many websites are served by the Apache web server, so we need to install it to create a virtual host file that configures the domain name and its document root, which are required for the Let&#8217;s Encrypt installation on Debian 13.<\/p>\n\n\n\n<p>To install Apache, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install apache2 -y<\/pre>\n\n\n\n<p>Once installed, start and enable the Apache service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl start apache2 &amp;&amp; sudo systemctl enable apache2<\/pre>\n\n\n\n<p>Check the status of the service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl status apache2<\/pre>\n\n\n\n<p>You should get the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:~# sudo systemctl status apache2\n\u25cf apache2.service - The Apache HTTP Server\n     Loaded: loaded (\/usr\/lib\/systemd\/system\/apache2.service; enabled; preset: enabled)\n     Active: active (running) since Sat 2025-10-25 02:23:12 CDT; 22s ago\n Invocation: eb31743245074010bc87f0efd77f47ce\n       Docs: https:\/\/httpd.apache.org\/docs\/2.4\/\n   Main PID: 60464 (apache2)\n      Tasks: 55 (limit: 4640)\n     Memory: 5.2M (peak: 5.7M)\n        CPU: 118ms\n     CGroup: \/system.slice\/apache2.service\n             \u251c\u250060464 \/usr\/sbin\/apache2 -k start\n             \u251c\u250060466 \/usr\/sbin\/apache2 -k start\n             \u2514\u250060468 \/usr\/sbin\/apache2 -k start\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-step-3-create-apache-virtual-host-file\"><span class=\"ez-toc-section\" id=\"Step-3-Create-Apache-Virtual-Host-File\"><\/span>Step 3. Create Apache Virtual Host File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before we create the virtual host file, we will create an index.html file in the <strong>\/var\/www\/htm\/<\/strong> directory on the server, which will be our document root.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">touch \/var\/www\/html\/index.html<\/pre>\n\n\n\n<p>Open the index.html file with your favorite editor and paste the following lines of code:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Hello World!\n<\/pre>\n\n\n\n<p>Save the file and close it.<\/p>\n\n\n\n<p>To create the Apache virtual host file, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo touch \/etc\/apache2\/sites-available\/website.conf<\/pre>\n\n\n\n<p>Open the file and paste the following lines of code<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;VirtualHost *:80><br><br>ServerName yourdomain.com<br>DocumentRoot \/var\/www\/html<br><br>AllowOverride All<br><br>ErrorLog ${APACHE_LOG_DIR}\/error.log<br>CustomLog ${APACHE_LOG_DIR}\/access.log combined<br><br>&lt;\/VirtualHost><\/pre>\n\n\n\n<p>Save the file and close it.<\/p>\n\n\n\n<p>Enable the Apache configuration files for your website, including the rewrite module.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo a2enmod rewrite\n\nsudo a2ensite website.conf\n\nsudo a2dissite 000-default.conf\n<\/pre>\n\n\n\n<p>Check the Apache2 syntax:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">apachectl -t<\/pre>\n\n\n\n<p>You should receive the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:\/var\/www\/html# apachectl -t\nSyntax OK\n<\/pre>\n\n\n\n<p>If the syntax is OK, restart the Apache service.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">systemctl restart apache2<\/pre>\n\n\n\n<p>Now you can access the website insecurely at <strong>http:\/\/yourdomainhere.com<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-step-4-install-let-s-encrypt-ssl-certificate\"><span class=\"ez-toc-section\" id=\"Step-4-Install-Lets-Encrypt-SSL-certificate\"><\/span>Step 4. Install Let&#8217;s Encrypt SSL certificate<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before we install Let&#8217;s Encrypt on Debian 13, we need to install the Certbot Apache plugin to secure your data.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install python3-certbot-apache -y<\/pre>\n\n\n\n<p>Once installed, we can obtain a certificate with the command below:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo certbot --apache -d yourdomain.com<\/pre>\n\n\n\n<p>Through the process, you will be asked a couple of questions about personal data:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:\/var\/www\/html# sudo certbot --apache -d yourdomain.com\nSaving debug log to \/var\/log\/letsencrypt\/letsencrypt.log\nEnter email address or hit Enter to skip.\n (Enter 'c' to cancel): <strong>admin@yourdomain.com<\/strong>\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nPlease read the Terms of Service at:\nhttps:\/\/letsencrypt.org\/documents\/LE-SA-v1.5-February-24-2025.pdf\nYou must agree in order to register with the ACME server. Do you agree?\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n(Y)es\/(N)o: <strong>Y<\/strong>\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nWould you be willing, once your first certificate is successfully issued, to\nshare your email address with the Electronic Frontier Foundation, a founding\npartner of the Let's Encrypt project and the non-profit organization that\ndevelops Certbot? We'd like to send you email about our work encrypting the web,\nEFF news, campaigns, and ways to support digital freedom.\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n(Y)es\/(N)o: <strong>N<\/strong>\nAccount registered.\nRequesting a certificate for <strong>yourdomain.com<\/strong>\n\nSuccessfully received certificate.\nCertificate is saved at: \/etc\/letsencrypt\/live\/yourdomain.com\/fullchain.pem\nKey is saved at:         \/etc\/letsencrypt\/live\/yourdomain.com\/privkey.pem\nThis certificate expires on 2026-01-23.\nThese files will be updated when the certificate renews.\nCertbot has set up a scheduled task to automatically renew this certificate in the background.\n\nDeploying certificate\nSuccessfully deployed certificate for yourdomain.com to \/etc\/apache2\/sites-available\/website-le-ssl.conf\nCongratulations! You have successfully enabled HTTPS on https:\/\/yourdomain.com\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nIf you like Certbot, please consider supporting our work by:\n * Donating to ISRG \/ Let's Encrypt:   https:\/\/letsencrypt.org\/donate\n * Donating to EFF:                    https:\/\/eff.org\/donate-le\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n<\/pre>\n\n\n\n<p>That&#8217;s it! Now you can access your website securely at <strong>https:\/\/yourdomain.com<\/strong><\/p>\n\n\n\n<p>Congratulations! You successfully installed Free Let&#8217;s Encrypt on Debian 13.<\/p>\n\n\n\n<p>Of course, you don\u2019t have to do this if you have difficulties and are not familiar with Linux. You can always contact our technical support. You only need to sign up for one of our NVMe VPS server plans and submit a support ticket. We are available 24\/7 and will address your request immediately.<\/p>\n\n\n\n<p>If you liked this post about the installation of a Free Let&#8217;s Encrypt SSL certificate on Debian 13, please share it with your friends or leave a comment below.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this guide, we&#8217;ll learn how to install Let&#8217;s Encrypt on Debian 13. Let&#8217;s Encrypt is a non-profit certificate authority &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How to Install Let&#8217;s Encrypt on Debian 13\" class=\"read-more button\" href=\"https:\/\/www.rosehosting.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/#more-51225\" aria-label=\"Read more about How to Install Let&#8217;s Encrypt on Debian 13\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":51230,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1700],"tags":[2265,1603,1632],"class_list":["post-51225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-debian","tag-debian-13","tag-how-to-install","tag-lets-encrypt","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - 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