Freebsd how shielding su order (pass /etc/ttys) According to a book that, through the revision of the paragraph /etc/ttys #Pseudo Terminals Ttyp0 none network Ttyp1 none network Ttyp2 none network Ttyp3 none network …… Several sections of the network by adding secure the right keyword field Can be achieved But I revised (after write-off and landing again), we found no effect of 车 or group of users can upgrade to root su orders. [ Closed window ]