This is for Ubuntu Server 12.04 64-bit.
The easiest way to activate Apache’s SSL is:
a2enmod ssl a2ensite default-ssl service apache2 restart
That’s all for the setup, now for installing the certificates. I am using certificates from StartSSL, so your installation may be slightly different.
Copy the unencrpyted SSL private key to /etc/ssl/private, chown it www-data:www-data, chmod it 700.
Find the line containing
SSLCertificateKeyFile, uncomment it, and change it to point to your private key file, like so:
SSLCertificateKeyFile /etc/ssl/private/(your private key file)
Copy your public key to /etc/ssl/certs.
Change the SSLCertificateFile line to point to your public certificate, like so:
SSLCertificateFile /etc/ssl/certs/(your certificate file)
Find the following line and uncomment it: