Dreamhost Dynamic DNS (DDNS) & pfSense
First, create the host A record in the Dreamhost DNS Control Panel.
Create an API key with DNS updates only.
Go to Services -> Dynamic DNS, click ‘Add,’ then configure as follows:
Add FQDN of dynamic host here
Add a description, then Save & Force Update
If completed correctly, the status screen on the next page will show a green public IP address.
It may be necessary to adjust the internal DNS to reflect the internal address of the FQDN. This will be covered in a separate post.