Securing a config.php file

Hi all

I have build a form using http://phpformgen.sourceforge.net/ which is a pretty nice tool if your not good at forms (I am not). However, to get everything working the form relies on a config.inc.php file which it uses when it connects to the db and so on. I have put the config file along with the processor.php file in assets/snippets/form but is that safe enough?
The info in the config could - used in a malicious way - wipe around 25 subdomains and my own primary domain.
So I need help making sure that the config is safe. I tried getting to it from a browser and with a terminal using wget, but I wasn’t able to do so, so I guess that’s always something.

What steps do I need to take in order to make sure that the config file is just as safe as modx’s own?

the URL for the site that uses the form is grenzjobber.secus.dk/

And the url to the config file is grenzjobber.secus.dk/assets/snippets/form/config.db.php

I have removed all vital info from the config for the moment being.

Thanks for reading, larsb

Set permissions on the config file so it can’t be read by evil hackers?
That link you sent, while nice, generates about 6 million lines of javascript when you need about 6.