When and how are you trying to access your ownCloud server doesn’t seem quite clear to me:
Are you trying to access a private ownCloud from the internet?
Or just from the internal LAN?
There is a template for server issues, please fill it out so people here can help you effectively.
Most notably, what exactly are you trying to do and what error message do you receive?
Finally also what @cortho said, your config.php is not right.