Disable Root Console login

After Configuring a brand new netraT1, It appears, the only way you can log in as root is throught the Serial Port (console). I believe there is a file in /etc which can be edited to allow root to access login via other methods
eg: telnet, ssh, etc.

My Question:
Which file contains this information?

What I've tried:
I've tried grep to no avail.

Thank you for your help


On many flavors of Unix it is:


Another is:


[Edited by Neo on 09-25-2000 at 02:49 PM]