Learning CentOS Linux

2h 12mBeginner2019-03-14

Authors

Scott Simpson

Creating Technology Courses as a Senior Staff Author at LinkedIn

Course details

CentOS is a Linux distribution (derived from Red Hat Enterprise Linux) that's popular with system admins, DevOps engineers, and home users alike. It's also used by many organizations for development and production servers. In this course, learn how to install and make your way around CentOS, perform common tasks from the command line, and get a firewall, a web server, and shared folders up and running. Instructor Scott Simpson also shares troubleshooting tips and discusses security-enhanced Linux (SELinux), which adds an additional level of security to CentOS.

Learning objectives
What is CentOS?
Installing CentOS
Configuring networking manually
Configuring the network with NetworkManager
Connecting remotely
Working with security-enhanced Linux (SELinux)
Setting up a firewall
Setting up a web server
Sharing user home folders with Samba
Setting up a desktop environment
Troubleshooting

Skills covered

CentOSLinuxServer AdministrationNetwork AdministrationLearningNetwork and System AdministrationOpen Source

Concepts

Introduction

Learning CentOS
What is CentOS
What you should know

Getting Started

Installation options
Installing CentOS on a virtual machine
Creating installation media
Installing CentOS on a physical machine

Basic Administration

The Linux file system and the Filesystem Hierarchy Standard
Configuring the network for a CentOS server
Configuring the network manually
Configuring the network with NetworkManager
Setting the hostname
Connecting to the system remotely with Secure Shell (SSH)
Adding an administrative user with SSH access
Adding a key to a user for SSH access
Transferring files to and from the server
File permissions
Working with users and groups
Installing and updating software
Installing packages by group
Installing packages from other sources

Working with Security-Enhanced Linux (SELinux)

Introducing SELinux
Access control mechanisms and policies
Working with SELinux
Disabling SELinux

Working with Common Services and Applications

Service management
Setting up the firewall using firewalld
Setting up a web server
Sharing user home folders with Samba
Creating a group file share with Samba
Mounting a Samba share on CentOS

Using a Desktop

Setting up a desktop environment
Exploring the desktop environment
Allowing screen-sharing access with VNC

Troubleshooting

The startup process
Exploring the logs
Checking and managing system resources

Conclusion

Next Steps