I set up an Apache + SSL environment, so here are the steps for reference.

Reading the article below should be sufficient:

・[Think IT] 第7回：Apache+SSL環境を構築しよう！ (1/3)

Here are the steps: 　

Apache SSL Configuration

First, uncomment the line to load the SSL configuration file httpd-ssl.conf.

# vi /usr/local/apache2/conf/httpd.conf 

Include conf/extra/httpd-ssl.conf

Next, edit httpd-ssl.conf.

# vi /usr/local/apache2/conf/extra/httpd-ssl.conf 

In VirtualHost, change the global IP, DocumentRoot, ServerName, and ServerAdmin as appropriate.

Also, change the SSLCertificateFile and SSLCertificateKeyFile sections to the certificate path and private key path respectively.

DocumentRoot "/usr/local/apache2/htdocs"
ServerName example.com:443
ServerAdmin [email protected]

SSLCertificateFile "/usr/local/apache2/conf/server.crt"
SSLCertificateKeyFile "/usr/local/apache2/conf/server.key"

Finally, once the changes are complete, restart Apache.

# service httpd configtest
# service httpd restart

That’s all from the Gemba.