Thread:Project:Support desk/404 Error on Short URL/reply

Your rewrite rules are meaningless without knowing the directory structure of your webserver. Basically, where is MediaWiki relative to the document root.

404 errors are logged in the apache, so you can look inside that log file and see what path it's trying to send to the client (which didn't found).

Posting an example of such errors (from the log) here would also help.