Ar.... I forgot to tell u one thing. I'm now trying to let the users to login via SSH. I found that only root has the Last login message but not the other users.
However, when I use the normal telnet, the message is there whoever logs in.
It seems that the login.defs isn't the one to control the appearance of that message in my system. Is it the special feature RH9? Then where can I control the login behaviour?
Thanks very much again!