Originally posted by: kmvinay

How to block the root user login in system direct console. Users should login with non-root ids themselves and then use the su command to become root. Which configuration file i need to check and disable it.

Originally posted by: SystemAdmin

Hi kmvinay,
You can use the command chuser to perform this or you can edit the /etc/security/user file
chuser command:
chuser login=false root
to go back change it to true.

at the /etc/security/user file:
edit the file and add the line
login = true to the root section.

Originally posted by: j.gann

invest some time to think if what you want to do is sensible. blocking remote root logins is good common practice but there are situations unix will only allow root logins. that's when a root login via console saves a headache.

Originally posted by: kmvinay

yes, i strongly agree... But some of the customers still keeping their process strict even though we have explained details about the cons. :)

Any way, my sincere thanks for the answers.