To disable remote login access for your root user, edit the /etc/security/user file. Specify False as the rlogin value on the entry for root.
BATO-PC@root:/etc/security/> vi user * * rlogin Defines whether the user account can be accessed by remote * logins. Commands rlogin and telnet support this attribute. * Possible values: true or false. * root: admin = true SYSTEM = "compat" registry = files loginretries = 0 account_locked = false rlogin = false