How can I make all unrecognized file types as binary in Apache2?

Question

I'm building a web server distributing variety kind of binary files. (with Ubuntu) They have vary extensions and sometimes has wrong extension. But currently, my Apache server serves unknown files as text. So I have to make my Apache2 serve all files as binary by default regardless of extension or any metadata except some explicit cases. How can I archive this?

Answer 1

Try this directive on your site configuration:

DefaultType application/octet-stream

Or this one:

DefaultType None

The default seems to be text/plain:

DefaultType Directive
Description:    MIME content-type that will be sent if the server cannot determine a type in any other way
Syntax: DefaultType MIME-type|none
Default:    DefaultType text/plain
Context:    server config, virtual host, directory, .htaccess

http://httpd.apache.org/docs/2.2/mod/core.html#defaulttype