{"id":2352,"date":"2025-05-15T12:30:00","date_gmt":"2025-05-15T17:30:00","guid":{"rendered":"https:\/\/www.linuxcloudvps.com\/blog\/?p=2352"},"modified":"2025-04-14T02:41:15","modified_gmt":"2025-04-14T07:41:15","slug":"how-to-install-lets-encrypt-on-debian-13","status":"publish","type":"post","link":"https:\/\/www.linuxcloudvps.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/","title":{"rendered":"How to Install Let&#8217;s Encrypt on Debian 13"},"content":{"rendered":"\n<p>This blog post shows you how to install Let&#8217;s Encrypt on Debian 13. Let&#8217;s Encrypt is a non-profit certification authority that provides SSL certificates for TLS (Transport Layer Security). It is the world&#8217;s most considerable certificate authority, used by more than 400 million websites. The entire process for obtaining an SSL certificate is fully automated by the Certbot. Certbot is a free and open-source software tool for automatically using Let&#8217;s Encrypt certificates on a manually-administered website to enable HTTPS. HTTPS is Hypertext Transfer Protocol secure, used to send data between a web browser and a website.<\/p>\n\n\n\n<p>Installing the Free Let&#8217;s Encrypt SSL certificate is automated on Apache and Nginx web servers. We will cover the procedures for both in the following paragraphs.<\/p>\n\n\n\n<p>Installing a Let&#8217;s Encrypt SSL certificate on Debian 13 is straightforward, and the process should not take more than 5 minutes. Let&#8217;s get started!<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Prerequisites<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <a href=\"https:\/\/www.linuxcloudvps.com\/cloud-vps.html\">server running Debian 13<\/a> OS<\/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\">Update the system<\/h2>\n\n\n\n<p>Before we start with the installation of Free Let&#8217;s Encrypt SSL certificate, we need to update the packages to their latest available 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\">Install Apache Web Server and Create Virtual Host<\/h2>\n\n\n\n<p>First we need to install Apache2 as a web server. To do that 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 Sun 2025-04-13 04:23:25 CDT; 1min 3s ago\n Invocation: 2371b16c18674399bb97ce504e35defb\n       Docs: https:\/\/httpd.apache.org\/docs\/2.4\/\n   Main PID: 68961 (apache2)\n      Tasks: 55 (limit: 4644)\n     Memory: 5.5M (peak: 6.1M)\n        CPU: 231ms\n     CGroup: \/system.slice\/apache2.service\n<\/pre>\n\n\n\n<p>Now, when we have installed the Apache web server we need to create virtual host file with the domain. To do that create the following file:<\/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 with your text editor and paste the following lines of code:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;VirtualHost *:80&gt;\nServerName yourdomain.com\nDocumentRoot \/var\/www\/html\n\n&lt;Directory \/var\/www\/html\/&gt;\nAllowOverride All\n&lt;\/Directory&gt;\n\nErrorLog ${APACHE_LOG_DIR}\/error.log\nCustomLog ${APACHE_LOG_DIR}\/access.log combined\n\n&lt;\/VirtualHost&gt;\n<\/pre>\n\n\n\n<p>Save the file and close it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Install Certbot plugin for Apache and obtain a Certificate<\/h2>\n\n\n\n<p>Once the Apache configuration file is created, we can proceed with installing Certbot and obtaining a certificate. To install Certbot and its Apache plugin, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">apt install python3-certbot-apache<\/pre>\n\n\n\n<p>To obtain an SSL certificate you need to execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo certbot --apache -d yourdomain.com -d www.yourdomain.com<\/pre>\n\n\n\n<p>Through the process, you will be asked for 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 -d www.yourdomain.com\nSaving debug log to \/var\/log\/letsencrypt\/letsencrypt.log\nEnter email address (used for urgent renewal and security notices)\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. You must\nagree 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 yourdomain.com\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 2025-07-12.\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. The Free Let&#8217;s Encrypt has been installed, and you can access the website securely at <strong>https:\/\/yourdomain.com<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Install Nginx Web Server and Create Virtual Host<\/h2>\n\n\n\n<p>Now, we will show you how to install Let&#8217;s Encrypt with Nginx as a web server. Let&#8217;s first install the Nginx web server with the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install nginx -y<\/pre>\n\n\n\n<p>Once installed start and enable the Nginx service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl start nginx &amp;&amp; sudo systemctl enable nginx<\/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 nginx<\/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 nginx\n\u25cf nginx.service - A high performance web server and a reverse proxy server\n     Loaded: loaded (\/usr\/lib\/systemd\/system\/nginx.service; enabled; preset: enabled)\n     Active: active (running) since Sun 2025-04-13 07:36:54 CDT; 39s ago\n Invocation: 6f108e482b844ca3ba2e1b6826a714f0\n       Docs: man:nginx(8)\n   Main PID: 71011 (nginx)\n      Tasks: 4 (limit: 4644)\n     Memory: 3.8M (peak: 9.2M)\n        CPU: 126ms\n     CGroup: \/system.slice\/nginx.service\n             \u251c\u250071011 \"nginx: master process \/usr\/sbin\/nginx -g daemon on; master_process on;\"\n<\/pre>\n\n\n\n<p>Now, when we have installed the Nginx web server we need to create virtual host file with the domain. To do that create the following file:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">touch \/etc\/nginx\/conf.d\/website.conf<\/pre>\n\n\n\n<p>Open the file with your text editor and paste the following lines of code:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">server {\nlisten 80;\n   server_name yourdomain.com;\n\n   root \/var\/www\/html;\n   index index.html index.php;\n\n   server_tokens off;\n\n   access_log \/var\/log\/nginx\/wordpress_access.log;\n   error_log \/var\/log\/nginx\/wordpress_error.log;\n}\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Install Certbot plugin for Nginx and obtain a Certificate<\/h2>\n\n\n\n<p>Once the Nginx configuration file is created, we can proceed with installing Certbot and obtaining a certificate. To install Certbot and its Nginx plugin, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install certbot python3-certbot-nginx -y<\/pre>\n\n\n\n<p>To obtain an SSL certificate you need to execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo certbot --nginx -d yourdomain.com -d yourdomain.com<\/pre>\n\n\n\n<p>The personal info about the email address and sharing the email address is the same as previous step. The final output after successfull Let&#8217;s encrypt installation is the followig one:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Successfully received certificate.\nCertificate is saved at: \/etc\/letsencrypt\/live\/yourdomain.co\/fullchain.pem\nKey is saved at:         \/etc\/letsencrypt\/live\/yourdomain.co\/privkey.pem\nThis certificate expires on 2025-07-12.\nThese files will be updated when the certificate renews.\n\nDeploying certificate\nSuccessfully deployed certificate for yourdomain.co to \/etc\/nginx\/conf.d\/website.conf\nCongratulations! You have successfully enabled HTTPS on https:\/\/yourdomain.co\n\nNEXT STEPS:\n- The certificate will need to be renewed before it expires. Certbot can automatically renew the certificate in the background, but you may need to take steps to enable that functionality. See https:\/\/certbot.org\/renewal-setup for instructions.\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\u2019s it. You successfully learned how to install Let&#8217;s Encrypt on Debian 13 OS.<\/p>\n\n\n\n<p>If you liked this post about Let&#8217;s Encrypt installation, please share it with your friends or leave a comment down below.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This blog post shows you how to install Let&#8217;s Encrypt on Debian 13. Let&#8217;s Encrypt is a non-profit certification authority that provides SSL certificates for TLS (Transport Layer Security). It is the world&#8217;s most considerable certificate authority, used by more than 400 million websites. The entire process for obtaining an SSL certificate is fully automated &#8230; <a title=\"How to Install Let&#8217;s Encrypt on Debian 13\" class=\"read-more\" href=\"https:\/\/www.linuxcloudvps.com\/blog\/how-to-install-lets-encrypt-on-debian-13\/\" aria-label=\"More on How to Install Let&#8217;s Encrypt on Debian 13\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":2357,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[271,206],"tags":[348,347,131,315],"class_list":["post-2352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-debian","category-how-to","tag-debian-13","tag-how-to-sintall","tag-lets-encrypt","tag-ssl"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install Let&#039;s Encrypt on Debian 13 | LinuxCloudVPS Blog<\/title>\n<meta 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