On Sat, 2015-01-24 at 22:45 -0500, Stephen Harris wrote: > On Sun, Jan 25, 2015 at 03:43:06AM +0000, Always Learning wrote: > > Should the 'correct' entry be:- > > > > fred:x:504:504:::/sbin/nologin ? > > No; that's invalid. There must be an entry in the home directory field. Thanks Stephen and Dennis for the helpful explanation. I will use: useradd -d /dev/null -s /sbin/nologin snowman -- Regards, Paul. England, EU. Je suis Charlie.