Advance Permission

ACL

Access control list

ACL is use to give the permission to the user to access the directory and file.

It provide the specifics rights to the particular user.

     ACL implement on user and group.

+ is the  sign of ACL.

To set the ACL on user

               #setfacl –m  u:username:permission /directory name

                M= modify u=username permission=rwx

To check permission

                #getfacl /directory name

For group

                 #setfacl –m g:groupname:permission /directory name

To remove the user from ACL list

                  #setfacl –x u:username: /directory name