====== Install an SSL Certificate on CentOS ======
https://knowledge.rapidssl.com/support/ssl-certificate-support/index?id=SO6252
**SSL Checker**: https://knowledge.rapidssl.com/support/ssl-certificate-support/index?page=content&id=SO9556
vim /etc/httpd/conf.d/ssl.conf
SSLCertificateFile /etc/pki/tls/certs/server.crt
SSLCertificateKeyFile /etc/pki/tls/private/server.key
SSLCertificateChainFile /etc/pki/tls/certs/server-chain.crt
Edit and paste the contents of the intermediate certificate:
vim /etc/pki/tls/certs/server-chain.crt
Edit and paste the contents of the private key:
vim /etc/pki/tls/private/server.key
Edit and paste the contents of the new SSL cert:
vim /etc/pki/tls/certs/server.crt
Restart the web server process:
service httpd restart
Now use the checker link above to test.