Tip for the day: KEEPING PEOPLE OUT

If you want to keep people of your server, but want them to access their pop mail on the same box set up the following line in the password file:

babba:rtnRkIgCy4l4T:830:10:Babba Booie:/home/babba:/bin/nologin


Then create a script called
/bin/nologin that contains:

#! /bin/sh
echo "Sorry, but your account is only allowed POP access to this host."
exit 1

when a person attempts to log into their defined shell it will run the /bin/noling script, display
the message, and exit them from the system

Have Fun