Understanding Linux configuration files

9 Oct

LINUXOLOGY

Summary: This article explains configuration files on a Linux system that control user permissions, system applications, daemons, services, and other administrative tasks in a multi-user, multi-tasking environment. These tasks include managing user accounts, allocating disk quotas, managing e-mails and newsgroups, and configuring kernel parameters. This article also classifies the config files present on a Red Hat Linux system based on their usage and the services they affect.


Introduction

Every Linux program is an executable file holding the list of opcodes the CPU executes to accomplish specific operations. For instance, the ls command is provided by the file /bin/ls, which holds the list of machine instructions needed to display the list of files in the current directory onto the screen.
The behaviour of almost every program can be customized to your preferences or needs by modifying its configuration files.



Is there a standard configuration file format in Linux?

In a…

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