Example in a picture bellow: sudo nano /etc/apache2/sites-available/nf Certbot will look in your server block configuration that parameter and create the let’s encrypt configuration files according that parameter. One note – before running the command, first it’s needed to in your nginx configuration file, write at the ServerName parameter the actual domain name you pointed to your server. sudo apt install certbot python3-certbot-nginx On top of that, the tools have the automation features, so upon SSL expiry, they can renew and install the certificate again. Both tools will help us to obtain the certificate very easily, quick and also make the necessary configuration changes on Apache2. We’ll be using the Let’s Encrypt tool Cerbot in order to obtain the SSL certificate and the Apache2 plugin for certbot as well. Sudo iptables -I INPUT -p tcp -m tcp -dport 443 -j ACCEPT Secure Apache2 with Let’s Encrypt SSL on Debian Certbot installation Sudo iptables -A INPUT -p tcp -m tcp -dport 80 -j ACCEPT Sudo iptables -I INPUT -p tcp -m tcp -dport 443 -j ACCEPT Sudo iptables -I INPUT -p tcp -m tcp -dport 80 -j ACCEPT

If you have UFW or IPTABLES firewall, you need to configure them to have them open ports 80 and 443 for HTTP and HTTPS in order not only to host your website UFW Firewall configuration(open HTTP and HTTPS ports) Apache web server installed and runningĤ. Registered and valid a domain name pointing to your Debian server.ģ. Here we already have a Debian machine with Apache preinstalled on which we’re going to go through the steps on how to secure Apache2 with let’s encrypt ssl.ġ. The post will showcase the scenario, where we need to install certbot on our Debian machine and obtain the SSL certificate from Let’s Encrypt, setup the automatic HTTPS redirection and test out the certificate renewal as well.

In the following post, we’re going to showcase the procedure how to Secure Apache2 with Let’s Encrypt SSL on Debian 10(this procedure works on Debian 11 as well).

Secure Apache2 with Let’s Encrypt SSL on Debian 10/11 Overview

Install apache2 debian 10