news@zgdvda.UUCP (USENET News System) (04/05/89)
On all Ultrix (2.x and 3.0) systems here, su(1) still cannot correctly track super-user log. The follow shows su(1) tells nothing about who has become a super-user or who has tried su(1) command but failed. su < /dev/tty Then a message like "SU: /dev/tty" will be printed out on console, and "SU: /dev/tty Wed Apr 5 12:25:40 1989" in /usr/adm/sulog. Any comments? Perhaps, Ultrix's su(1), rexecd(8), rshd(8), etc. should do more checking. Ning Zhang <relay.cs.net!uka!unido!zgdvda!zhang> PS: su "" < /dev/tty if there is a line "::0:0:::" in /etc/passwd!