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Archive for September, 2014

Repost: How To Edit the Sudoers File on Ubuntu and CentOS

Privilege separation is one of the fundamental security paradigms implemented in Linux and Unix-like operating systems. Regular users operate with limited privileges in order to reduce the scope of their influence to their own environment, and not the wider operating system.

A special user, called root, has “super-user” privileges. This is an administrative account without the restrictions that are present on normal users. Users can execute commands with “super-user” or “root” privileges in a number of different ways.

In this article, we will discuss how to correctly and securely obtain root privileges, with a special focus on editing the /etc/sudoers file.

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