The apache http server – d standands for daemon, i.e. runs in the process.
Apachectl is actually used to listen to the http requests and responds to them, basically a daemon as any other in Linux.
The server guide can be found here
Apache changes a lot man – Vj
It’s a bit confusing because that httpd.conf was removed.
Interesting that there is a file called magic: /etc/apache2/magic