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Centos Quick Start Guide: Your Ultimate Guide to CentOS

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CentOS, an abbreviation for Community Enterprise Operating System, is a free and open-source Linux distribution derived from Red Hat Enterprise Linux (RHEL). It is widely recognized for its stability, security, and reliability, making it an ideal choice for servers, workstations, and embedded systems.

CentOS Quick Start Guide: Get up and running with CentOS server administration

by Shiwang Kalkhanda

4.5 out of 5

Language	:	English
File size	:	22167 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Print length	:	322 pages

This comprehensive Centos Quick Start Guide is designed to provide you with a solid foundation in CentOS, empowering you to navigate its features, installation, configuration, and more. Whether you are a seasoned Linux user or new to the CentOS ecosystem, this guide will serve as your essential companion on your CentOS journey.

Key Features of CentOS

Stability: CentOS is renowned for its rock-solid stability, ensuring minimal downtime and reliable performance.
Security: Backed by the robust security features of RHEL, CentOS offers exceptional protection against vulnerabilities and threats.
Open-source: Being an open-source distribution, CentOS grants you the freedom to customize and modify it to suit your specific needs.
Cost-effective: As a free and open-source offering, CentOS eliminates licensing costs, making it an economical choice for businesses and individuals.
Widely supported: CentOS enjoys extensive support from a vast community of users, contributors, and documentation, ensuring you have access to a wealth of resources.

Installing CentOS

Installing CentOS is a straightforward process that can be accomplished using various methods. This guide will walk you through the steps involved in installing CentOS via a live USB/DVD or a network installation.

Installation via Live USB/DVD

Download the CentOS ISO image from the official website.
Create a bootable USB/DVD using a tool like Rufus or Etcher.
Insert the bootable USB/DVD into your computer and restart.
Follow the on-screen prompts to complete the installation.

Network Installation

Configure your server to boot from the network.
Set up a DHCP server or manually configure network settings.
Start the installation process using the network installation option.
Follow the on-screen prompts to complete the installation.

Configuring CentOS

Once CentOS is installed, you can proceed with configuring it to meet your specific requirements. This involves tasks such as setting up networking, managing users, and installing additional software.

Networking Configuration

Edit the network configuration file (/etc/sysconfig/network-scripts/ifcfg-eth0).
Configure the IP address, netmask, gateway, and DNS settings.
Restart the network service (service network restart).

User Management

Create a new user using the useradd command.
Set a password for the new user.
Grant the user sudo privileges (usermod -aG wheel username).

Software Installation

Use the yum package manager to install software.
Search for packages using yum search.
Install a package using yum install [package name].

Essential CentOS Commands

To effectively navigate CentOS, familiarize yourself with these essential commands:

ls: List files and directories.
cd: Change directory.
mkdir: Create a new directory.
rm: Delete files or directories.
cp: Copy files or directories.
mv: Move files or directories.
chown: Change file or directory ownership.
chmod: Change file or directory permissions.
yum: Manage software packages.
systemctl: Control system services.

This Centos Quick Start Guide has provided you with a comprehensive overview of CentOS, its features, installation, configuration, and essential commands. By leveraging the knowledge and skills outlined in this guide, you are well-equipped to embark on your CentOS journey with confidence.

Whether you are a seasoned Linux user seeking to expand your knowledge or a novice venturing into the world of CentOS, this guide will serve as your invaluable companion, empowering you to harness the full potential of CentOS and achieve your goals.