Secure Configuration
From ClarolineDoc
You must protect claroline/inc/conf/ folder to prevent any modification by other users.
Give only read rights on this folder :
For Linux chmod -R 555 command
But in this case, the configuration interface in Claroline Administration tool won't work properly, as PHP won't have the rights to modify and save your changes.
Give read and write rights on this folder only to the PHP user (if set in group) and to you :
For Linux chmod -R 770 command
For Windows, click right on folder and give rights in the Security section.

