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Source: Linuxhomenetworking - Posted by Bill Keys
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Before we proceed, it would be best to cover some basic user administration topics that will be very useful in later chapters. Adding Users
One of the most important activities in administering a Linux box is the addition of users. Here you'll find some simple examples to provide a foundation for future chapters. It is not intended to be comprehensive, but is a good memory refresher. You can use the command man useradd to get the help pages on adding users with the useradd command or the man usermod to become more familiar with modifying users with the usermod command
Most Linux user's have used sudo before but do you know how to use it to increase your security? This article does a great job at explaining everything you need to know about sudo.
Read this full article at Linuxhomenetworking
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