I have 644 permissions for my conf.php. However, when I'm working as Administrator account, I see this message:
It is possible to edit all settings because the configuration file is not locked, but this could lead to security issues. If you want to secure your system, you need to lock the configuration file for this installation.
According to this post http://forum.revive-adserver.com/topic/112-securing-revive/?hl=%2Bconfiguration+%2Bfile , permissions should be 444 for the conf.php file, that means only read permission for everybody.
Do you agree with that?