In OS X create a new text file with Textedit. Copy and paste the above into the text file. Be sure to replace the XXXX to whatever your ddns name for your HDA is. Save this file as whatever you want with the .ovpn file extension. To change the Textedit file from .txt to .ovpn, hold down the option key whilst clicking on file. Choose save as and change file extension to .ovpn. The next step is to download the certificates. They can be found on the [[OpenVPN Client Certificates]] download page.