On Fri, 18 Apr 2014, paul g wrote: > Note: that I added visitor to administrator group 'that should be correct > right in order to access visitor through admin? NO. That's the exact OPPOSITE of what you want. What you did there was let "visitor" access everything owned by Administrators. You should add paul to administrators or sudo or whatever you hve there, and use sudo to access stuff that would otherwise be restricter. A guest account should never, ever, ever have nay kind of extended rights on a system. --