Objectives
In this chapter you will learn
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How user accounts and groups are used to provide access and security
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The function and structures of the passwd, group, and shadow files in /etc
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To add and delete user accounts using basic useradd and userdel commands
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To create user-level configurations that replicate for new users
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To lock a user account
Introduction
You are probably asking why I waited so long to talk about managing users. The answer is that many Linux systems today are essentially single-user systems. ...
