The FastCgiExternalServer directive tells Apache that when serving
/tmp/myapp to use the FastCGI application listenting on the socket
-/tmp/mapp.socket. Note that /tmp/myapp.fcgi does not need to exist --
+/tmp/mapp.socket. Note that /tmp/myapp.fcgi B<MUST NOT> exist --
it's a virtual file name. With some versions of C<mod_fastcgi> or
-C<mod_fcgid>, you can use any name you like, but most require that the
+C<mod_fcgid>, you can use any name you like, but some require that the
virtual filename end in C<.fcgi>.
It's likely that Apache is not configured to serve files in /tmp, so the