That is your config file ...
not your log.
However, --
block-outside-dns can be used by simply adding it to that config file,
provided you use Windows Vista or newer (this does not work on Windows XP)
Ensure you have a server push a suitable DNS server.
For further help please post your log file at
verb 4
See
--log, --verb and --block-outside-dns in
The Manual v23x