https://gitlab.cee.redhat.com/jowilkin/red-hat-ceph-storage-object-gateway/blob/869042fb8f65b00cda1c8f98822133fac767c542/ceph-object-gateway-installation-guide.adoc

The above document says:

Update /etc/httpd/conf/httpd.conf to load mod_proxy_fcgi module. Add the following to the file:

<IfModule !proxy_fcgi_module>
  LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
</IfModule>


If you add these lines before the Listen:, you get the following when you try to start the httpd service (on 6.6)

[ubuntu@magna105 ~]$ sudo service httpd start
Starting httpd: httpd: Syntax error on line 128 of /etc/httpd/conf/httpd.conf: Cannot load /etc/httpd/modules/mod_proxy_fcgi.so into server: /etc/httpd/modules/mod_proxy_fcgi.so: undefined symbol: ap_proxy_release_connection
                                                           [FAILED]

If you add the lines to the end of the file, you get the following:

[ubuntu@magna105 ~]$ sudo service httpd start
Starting httpd:                                            [  OK  ]

If 'add the following' means the same as 'append the following to the end', then this is not a problem.  However, 'add the following' is open to interpretation.