Description

Introduction to Red Hat

Red Hat, Inc. is a leading American multinational software company that provides open-source software products to the enterprise community. The company is best known for its Red Hat Enterprise Linux (RHEL), which is a widely used enterprise operating system. In addition to RHEL, Red Hat offers a wide range of solutions in cloud computing, middleware, virtualization, storage, container management (with OpenShift), and automation (with Ansible).

Red Hat’s open-source model encourages collaboration and innovation, where developers and IT professionals can adapt and contribute to the software. It has become a critical component of IT infrastructure, especially in enterprise environments.

Why Red Hat?

• Enterprise-grade Solutions: Red Hat provides robust and scalable solutions that are widely used in enterprises, from on-premises to hybrid cloud deployments.
• Open Source Leadership: As an open-source company, Red Hat provides transparency, flexibility, and innovation.
• Certification and Support: Red Hat offers certifications, which are highly respected in the IT industry, and technical support for enterprise clients.

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Prerequisites

Before diving into Red Hat, there are a few things you need to have or understand:

1. Basic Understanding of Linux: Familiarity with Linux commands and administration is essential. Red Hat is a Linux distribution, so basic knowledge of file systems, command-line tools, user management, and networking is crucial.
2. Familiarity with Virtualization: Knowing how to set up and manage virtual environments using tools like VirtualBox, VMware, or KVM is useful for deploying Red Hat instances.
3. Understanding of Networking: A basic understanding of IP addressing, subnetting, and network configurations will help manage Red Hat servers in enterprise environments.
4. Interest in Open Source: Red Hat’s ecosystem is built on open-source principles, so having an interest in or experience with open-source technologies and projects is beneficial.
5. Access to Red Hat: You can either use a subscription to Red Hat Enterprise Linux or leverage CentOS Stream or other compatible distributions for practice if a subscription is not available.

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Table of Contents

1. Introduction to Red Hat

• What is Red Hat?
• Why Choose Red Hat?
• Red Hat’s Place in Enterprise Computing

2. Getting Started with Red Hat Enterprise Linux (RHEL)

• Installing RHEL
• Basic Command-line Operations
• Red Hat Package Manager (RPM) and YUM/DNF

3. System Administration Basics

• User and Group Management
• File System Hierarchy and Permissions
• Service Management (systemd)
• Process and Job Control

4. Networking in Red Hat

• Configuring Network Interfaces
• Firewall Management with Firewalld
• SSH Configuration and Management
• Troubleshooting Networking Issues

5. Storage Management

• Disk Partitioning and Mounting
• Logical Volume Management (LVM)
• NFS and Samba Shares

6. Security in Red Hat

• Security-Enhanced Linux (SELinux)
• Configuring Firewalls and Security Policies
• Managing Users and Permissions
• Encryption and Auditing

7. Virtualization with Red Hat

• Introduction to KVM (Kernel-based Virtual Machine)
• Managing Virtual Machines with virsh and virt-manager
• Red Hat Virtualization Suite

8. Automation and Configuration Management

• Introduction to Ansible Automation
• Writing Ansible Playbooks
• Automating Tasks in RHEL

9. Red Hat OpenShift and Containers

• Introduction to Containers and Kubernetes
• Managing Containers with Podman
• Introduction to Red Hat OpenShift

10. Red Hat Cloud Solutions

• Hybrid Cloud with Red Hat
• Red Hat OpenStack Platform
• Red Hat CloudForms

11. Troubleshooting and Best Practices

• Common Troubleshooting Techniques
• Red Hat Support Resources
• Best Practices for Red Hat Administrators

12. Certifications and Career Path

• Red Hat Certified System Administrator (RHCSA)
• Red Hat Certified Engineer (RHCE)
• Other Certifications and Specializations

This table of contents provides a high-level overview of what you can expect when learning or working with Red Hat. Each section builds on the previous one, from the basics to advanced enterprise-level solutions.