Red Hat Linux Reference Guide

Linux Introduction

What is Linux Linux Architecture Filesystem & Directory Structure

VI-EDITOR

Operation Modes VI-Editor Commands

Process Management

What is Linux Process? Linux Process Management

Linux Installation

Linux Installation - Physical Servers

Disk Partitions & File System Management

Disk Partitions File Systems

Logical Volume Management - LVM

What is LVM? LVM Commands & Scenarios

User & Group Administration

What is User & Group? Managing Users and Groups

Package Management

Package Management using RPM Package Management using YUM

Network File System - NFS

What is NFS? NFS Server & Client Configuration

Domain Naming System - DNS

What is DNS? DNS Architecture Configure DNS Server Configure DNS Client DNS Summary

Apache HTTP Web Server

What is HTTP Web Server? HTTP Web Server Architecture Configure Apache HTTP Web Server

KickStart Installations

What is KickStart? Configure KickStart Server

FTP server

What is FTP Server? FTP Architecture Configure FTP Server Configure FTP Client FTP Summary

BOOT PROCESS

What is Boot Process? Boot Process Stages

Dynamic Host Configuration Protocol - DHCP

What is DHCP? DHCP Architecture Configure DHCP Server

Job Scheduling

Cron Jobs Management Cron Job Summary

File Links

Soft Link vs Hard Link

Swap Management

What is Swap?

Log Management

Log Rotate rsyslog

Performance Management

How to Monitor Performance? Performance Tools

Linux Troubleshooting

SingleUserMode vs RescueMode vs EmergencyMode Configure Kdump

Linux Summary

Linux Configuration Files Linux Interview Questions

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Red Hat Linux Reference Guide

 
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What is Linux

What is Linux?

UNIX was originally developed in 1969 by a bunch of AT&T staff at Bell Labs, as well as Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna.

Linux is the open source Operating System based on UNIX flavor. Linux Operating System provides interface to the users who can access the servers hardware to pass requests. Linux Operating System supporting GUI & CLI mode of access. 

Linux is  available is many flavors and some of them are listed below

  1. Red Hat Enterprise Linux
  2. CentOS
  3. Fedora
  4. OpenSUSE
  5. Ubuntu
  6. Alpine Linux  etc...

Linux is more popular Operating System as it supports many features includes:

  1. Multi-User Operating System
  2. Multi Tasking
  3. Multi Processor Support
  4. Multi Threading Support
  5. Virtual memory

This, Reference Guide is  based on Red Hat Linux and it  helps in understanding various Linux Applications Installation, Configuration and Administration steps and best practices. 

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