Prohibit remote root login on aix

Aix prohibits root users from remotely logging on to aix. The extended information is mostly in the/etc/security/user text file. You can modify: login = false users cannot log on to the system rlogin = false users cannot log on from the remote system su = false other users cannot switch to this user if they have special needs, simply use smitty lockuser to lock the specified User and disable telnet to log on to smit chuser-> root-> User can login REMOTELY (rsh, tn, rlogin) = false disable ssh logon to vi/etc/ssh/sshd_configPermitRootLogin no restart the ssh service stopsrc-s sshdstartsrc-s sshd. If the root user is not allowed to log on directly, you can log on with another user and then su to the root user. Another problem is that I have encountered a user named test who mistakenly entered the password multiple times and thus failed to log on. This allows me to log on locally and then identify the number of Logon errors. Chuser unsuccessful_login_count = 0 test