When you first log in to a Unix system, the login program performs various security measures. Which is not one of these security measures?

login checks whether the file nologin exists in /etc

login checks on which tty you're coming into the system

login checks if a minimum amount of time passed since your last login

login checks to see if you are not the root (privileged) user

Answer:
login checks if a minimum amount of time passed since your last login

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