In this tutorial we will show you how to install free SSL Certificates on with 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.
Step 2. Installing Apache web server.
Obviously we will need 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:
wget https://dl.eff.org/certbot-auto 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 it before it get expired. If you have installed certificates using certbot then it must have already created 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:
Congratulation’s! You have successfully install free SSL Certificates. Thanks for using this tutorial for install Let’s Encrypt SSL Certificates on CentOS 8 system. For additional help or useful information, we recommend you to check the official Let’s Encrypt website.