i have tried giving special permission to user and group on file /usr/sbin/useradd but still if i login from a simple user and run useradd it gives me an error saying permission denied.
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Useradd is only intended to be run by root, because when you run that command it will be making changes in other files and directories that are owned by root:wheel - so you shouldn’t be trying to give access to anyone else to issue that command, it is explicitly reserved only for root.
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