archai wrote
I have my configuration set so that whenever an unknown page is visited it will display a 404 error message. It's not working however.
That is a case of misunderstanding the
send404 config option. It is working the way it is intended to, i.e. it sends the 404 status header. Because having a "file not found" message is against typical wiki behaviour, that functionality is only available as a plugin (see
notfound plugin).