Install SSL Certificate on Ubuntu
Same certificate files as Apache (certificate.crt, cabundle.crt, privatekey.pem) uploaded to /etc/ssl/. Config typically at /etc/apache2/sites-enabled/your_site_name (use sudo a2ensite your_site_name if you can't find it). Back up the config first. Typical block:
<VirtualHost *:443>
DocumentRoot /var/www/site
ServerName www.domain.com
SSLEngine on
SSLCertificateFile /path/to/certificate.crt
SSLCertificateKeyFile /path/to/privatekey.pem
SSLCertificateChainFile /path/to/cabundle.crt
</VirtualHost>
Test with apachectlConfigtest, then apachectl restart. Continue at Step 3 in the plugin.