> > My next problem is how to hide other lines in /etc/passwd file and > > /etc/group ... One user should see only his own line. > > Any ideas ? > > > > What for ? > There is no sensitive information in /etc/passwd if you have shadow > passwords. ... but anybody can send message to anybody with simple shell script ... Pawel, there is a war ... only root should be able to send message to anybody (if he wants). There is a lot of spam around us :) G.