How can i reverse permission in dolphin 6

Hi,please  help me the command (cmd) to reverse permission on dolphin6

Is this during installation? You should follow the instructions outlined in this document: http://www.boonex.com/trac/dolphin/wiki/DetailedInstall - scroll down towards the bottom and you will see the list of permission changes you must make after installation. I recommend you use an SSH client for this, as it will be allot easier than hunting down files and directories in a FTP client.