How To Install Free SSL Certificate for Apache on CentOS 8

Install Free SSL Certificate for Apache on CentOS 8

In this tutorial, we will show you how to install free SSL Certificates for Apache CentOS 8. For those of you who didn’t know, Let’s Encrypt is a free open certificate authority (CA) that provides free certificates for websites and other services. The service, which is backed by the Electronic Frontier Foundation, Mozilla, Cisco Systems, and Akamai.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation Free SSL Certificate for Apache on CentOS 8 server.

Install Free SSL Certificate for Apache on CentOS 8

Step 1. First, let’s start by ensuring your system is up-to-date.

dnf update

Step 2. Installing Apache webserver.

Obviously, we will need an Apache server to installed on our machine. If you do not have LAMP installed, We can install it with the following our guide here.

Step 3. Installing Certbot for Apache on CentOS 8.

Run these commands on the command line on the machine to install Certbot:

sudo mv certbot-auto /usr/local/bin/certbot-auto
sudo chown root /usr/local/bin/certbot-auto
sudo chmod 0755 /usr/local/bin/certbot-auto

Then, run this command to get a certificate and have Certbot edit your Apache configuration automatically:

sudo /usr/local/bin/certbot-auto --apache

Step 3. Certbot Auto-Renew Cron Job.

Let’s Encrypt SSL certificates will get expired after 90 days of installation and you must renew them before it gets expired. If you have installed certificates using certbot then it must have already created a cronjob to auto-renew certificates:

echo "0 0,12 * * * root python -c 'import random; import time; time.sleep(random.random() * 3600)' && /usr/local/bin/certbot-auto renew" | sudo tee -a /etc/crontab > /dev/null

Step 4. Verify that Certbot worked.

You should test your configuration at:

Congratulations! You have successfully installed free SSL Certificates. Thanks for using this tutorial to install Let’s Encrypt SSL Certificates on CentOS 8 system. For additional help or useful information, we recommend you check the official Let’s Encrypt website.

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