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)

Managing a network with nmcli

There are several tools available in Linux for the management of a network, however in CentOS 7, the additional nmcli utility has simplified and speeded up the setup of networking. nmcli is an acronym for the NetworkManager command line and is used to control the network-manager utility from the command line. The nmtui utility used to be a favorite of system administrators, however nmcli saves a lot of time and its capability to be used in script has make it one of the best networking tools in Linux.

Defining basic terms

Following are the few basic terms which are used with nmcli and hence an overview of these will help us in understanding it better.