dear all,
pls give the sollution to disable root login from telnet directly.but it should allow while we type su command
On my Ubuntu Linux machine I can do this by editing /etc/securetty and commenting out all entries except for tty1 through tty8.
**EDIT - Sorry, I didn't realise this was in the SCO section, maybe someone should delete my post. Apologies.
For SCO UnixWare 7.1.x, you need to add the following line to /etc/default/login:
CONSOLE=/dev/console
This ensures that root can only login locally from the console. You must 'su' to root via telnet.