On my Mac Book Pro, I am using smb/afp to mount a shared windows folder. On my Mac, it is created as a volume. It is showing the list of "ls" command on Mac as drwx------ 1 johnny admin 16384 Jan 21 11:48 test123 Now I am trying the command "chmod 555", which is not modifying the ACL parameters of the shared folder mounted on Mac. I tried with mounting Linux disk also. But the same result. How to achieve changing ACL of remote volumes on Mac.