Install Certbot
#change to our home directory
cd
# Download and install the "Extra Packages for Enterprise Linux (EPEL)"
wget -O epel.rpm –nv https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum install -y ./epel.rpm
# Install certbot for Apache (part of EPEL)
sudo yum install python2-certbot-apache.noarch
# Create a dummy ssl certificate. This will not become part of your ssl strategy.
# You only need to install it because of default settings in Apache ssl configuration
sudo /etc/pki/tls/certs/make-dummy-cert localhost.crt
sudo service httpd restart
2. Execute certbot
# Launch the certbot installer with the following parameters:
# -i apache Use the Apache installer.
# -a manual Authenticate domain ownership manually.
# --preferred-challenges dns Use DNS TXT records for authentication challenge.
# -d test.example.com Specify the domain for the SSL/TLS certificate.
sudo certbot -i apache -a manual --preferred-challenges dns -d ssl.example.com
