Book Image

CentOS Quick Start Guide

By : Shiwang Kalkhanda
Book Image

CentOS Quick Start Guide

By: Shiwang Kalkhanda

Overview of this book

Linux kernel development has been the worlds largest collaborative project to date. With this practical guide, you will learn Linux through one of its most popular and stable distributions. This book will introduce you to essential Linux skills using CentOS 7. It describes how a Linux system is organized, and will introduce you to key command-line concepts you can practice on your own. It will guide you in performing basic system administration tasks and day-to-day operations in a Linux environment. You will learn core system administration skills for managing a system running CentOS 7 or a similar operating system, such as RHEL 7, Scientific Linux, and Oracle Linux. You will be able to perform installation, establish network connectivity and user and process management, modify file permissions, manage text files using the command line, and implement basic security administration after covering this book. By the end of this book, you will have a solid understanding of working with Linux using the command line.
Table of Contents (11 chapters)

Editing network configuration files

In the previous section, we looked at how nmcli is used to configure static and dynamic IP addressing. Apart from the NetworkManager command-line interface and GUI interface, we can configure networking manually using network interface configuration files. At any one time, we can either configure networking using network interface files manually or using NetworkManager, but not both simultaneously. The location of the network interface files (scripts) varies from one Linux distribution to another. In the case of CentOS 7, the network interface configuration files are stored in the /etc/sysconfig/network-scripts/ folder and their naming conventions begin with ifcfg-<device_name>.

Configuring networking options in static and dynamic modes

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