Technology Errors

Invalid command ‘FastCGIExternalServer’, perhaps misspelled or defined by a module not included in the server configuration

I got the error below when attempting to configure a Django project to be served by FastCGI via Apache for the first time. I have configured FastCGI but it had been awhile and the server I was working with had ISPConfig installed on it and what I thought to be mod_fastcgi. Below I explain the error, my mix up, and how to resolve on a Linux server.