As you mentioned you’re still new to linux, I might give you a few hints where to look to do that.
These should help you find out how to set permissions:
To check permissions, use this:
Also, to find out if something went wrong, check the logfile:
And if the logfile doesnt give you a clue, try looking for ‘debuglevel’ in the config file.
It can be raised up to level 9 to display more detailed info.
Happy hunting. 🙂