What are file permissions and how do I change them?
File permissions are the system’s way of telling you what you can and cannot do with a file or folder. They are governed by Access Control Lists (click for definition). There are two ways of setting file permissions. You can do it the graphical way or the command-line way. To do it graphically, you must have Simple File Sharing disabled from the View tab of Folder Options (Professional only) or be in Safe Mode (either). Right-click on the object of your choice and click Properties. Then go to the Security tab. Here you are presented with a list of users and groups and a small list of permissions. More permissions are available when you click Advanced. Some rules of thumb: •Stick to the main security screen unless you’re absolutely sure of what you’re doing•Deny takes precedence over allow, so do not deny groups anything unless you are absolutely sure of what you are doing. If you deny something to the Users group, you deny that permission to everyone who is authenticated. Use even more
