The path to httpd on redhat 9 is /etc/init.d/httpd
You can run the following commands on it:
/etc/init.d/httpd configtest
/etc/init.d/httpd graceful
/etc/init.d/httpd restart
/etc/init.d/httpd stop
/etc/init.d/httpd start
I always run configtest
before restarting to make sure I haven’t messed anything up.