1. Create a self-signed certificate
# make /etc/pki/tls/certs/self_signed_cert.pem
2. Enter the information such as country, province, state, company, division etc. These information will be reflected in your self-signed certificate
3. Configure the ssl configuration
# vim /etc/httpd/conf.d/ssl.conf
4. Update ssl.conf, ensure SSLCACertificateFile and SSLCACertificateKeyFile points to the newly created self-signed certificate
...........
SSLCACertificateFile /etc/pki/tls/certs/self_signed_cert.pem
SSLCACertificateKeyFile /etc/pki/tls/certs/self_signed_cert.pem
..........
5. Restart the httpd service
# service httpd restart
6. Check your https :)