Introduction
Red Hat Enterprise Linux (RHEL) is the worlds leading enterprise Linux platform, trusted by millions of customers across various industries and sectors. RHEL provides a consistent, stable, and high-performance platform for running your mission-critical applications on any environment, whether it is on-premise, in the cloud, or on the edge.
RHEL 8 is the latest version of RHEL, released in May 2019. It introduces new features that accelerate your application development and deployment, simplify your system administration and management, and enhance your security and compliance. RHEL 8 also offers a broader selection of languages and developer tools, as well as support for emerging technologies such as containers, artificial intelligence, and edge computing.
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In this article, you will learn how to download and install RHEL 8 on your server, what are the key features and benefits of RHEL 8, and how it compares with other Linux distributions. By the end of this article, you will have a better understanding of why RHEL 8 is the best choice for your enterprise needs.
Downloading and installing Red Hat Enterprise Linux 8
To download RHEL 8, you need to have a Red Hat subscription or a free developer account. You can get a free developer account by signing up at page and choose the product variant that suits your needs. You can also choose the installation target that matches your deployment scenario, such as a physical server, a virtual machine, or a cloud instance.
The installation target will provide you with an ISO image file that you can use to create a bootable installation media. You can use tools such as dd or Rufus to write the ISO image to a USB flash drive or a DVD. Alternatively, you can use tools such as virt-manager or VirtualBox to create a virtual machine from the ISO image.
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Once you have the installation media ready, you can boot your system from it and follow the graphical installation program to install RHEL 8 on your server. The installation program will guide you through various steps such as selecting the language, setting the time zone, configuring the network, choosing the installation destination, selecting the software to be installed, creating user accounts, and setting the root password. You can also customize the installation options by using the advanced settings menu.
After completing the installation steps, you can start the installation process by clicking Begin Installation. The installation program will copy the files to your system and perform some post-installation tasks. When the installation is finished, you can reboot your system and log in to your new RHEL 8 server.
Features of Red Hat Enterprise Linux 8
RHEL 8 introduces many new and improved features that make it easier for you to develop and deploy applications on any environment. Some of these features are:
Application Streams
Application Streams are a new way of delivering user-space components in RHEL 8. They provide multiple versions of languages, runtimes, databases, web servers, and other software that you can install with a single command using yum or dnf. Application Streams are updated more frequently than the core operating system packages, giving you access to the latest innovations without compromising stability or security.
You can use Application Streams to run different versions of the same software on the same system, or to switch between different versions easily. You can also create your own custom Application Streams using modules and profiles. Application Streams are compatible with Red Hat Universal Base Images (UBIs), which are container images that you can use to build and run your applications on any platform.
Container Tools
RHEL 8 provides a comprehensive set of tools for building, running, and managing containers. These tools include:
Podman: A command-line tool for creating and managing containers without a daemon. Podman supports both root and rootless containers, as well as pods, which are groups of containers that share resources and network. Podman can also generate Kubernetes YAML files from containers and pods.
Buildah: A command-line tool for building container images from scratch or from existing images. Buildah can also push and pull images from container registries, such as Quay.io or Docker Hub.
Skopeo: A command-line tool for inspecting, copying, and signing container images. Skopeo can also work with remote registries and local storage.
CRI-O: A lightweight container engine that implements the Kubernetes Container Runtime Interface (CRI). CRI-O provides a secure and efficient way of running containers on Kubernetes clusters.
These tools are based on open standards and specifications, such as the Open Container Initiative (OCI) and the Container Storage Interface (CSI). They are also compatible with Docker and Kubernetes, allowing you to use your existing workflows and tools with RHEL 8.
Security Enhancements
RHEL 8 provides several security enhancements that help you protect your data and systems from threats and vulnerabilities. Some of these enhancements are:
System-wide Cryptographic Policies: A new feature that allows you to configure the cryptographic algorithms and protocols that are used by system services and applications. You can choose from four predefined policies: default, legacy, future, and fips. You can also create your own custom policies using the update-crypto-policies command.
Nftables: A new firewall framework that replaces iptables as the default packet filtering tool in RHEL 8. Nftables provides a simpler and more consistent syntax, better performance, and more features than iptables. You can also use nftables to manage IPv4, IPv6, ARP, bridge, and inet traffic with a single tool.
OpenSSL 1.1.1: A new version of the OpenSSL library that supports the latest cryptographic standards, such as TLS 1.3, which offers improved security and performance for network connections. OpenSSL 1.1.1 also supports new algorithms, such as ChaCha20-Poly1305, Ed25519, and X25519.
TPM 2.0: A new version of the Trusted Platform Module (TPM) hardware device that provides enhanced security features, such as encryption, authentication, and attestation. TPM 2.0 also supports more algorithms, such as SHA-3, AES-256, and ECC.
Benefits of Red Hat Enterprise Linux 8
RHEL 8 offers many benefits for your enterprise applications, such as:
Stability
RHEL 8 is built on a solid foundation of Linux kernel 4.18, which provides long-term support and stability for your workloads. RHEL 8 also follows a 10-year life cycle model, which means that you will receive security updates and bug fixes for up to 10 years after the release date. Additionally, RHEL 8 offers extended update support (EUS) streams, which allow you to stay on a specific minor release for up to two years without having to upgrade to a newer minor release.
Performance
RHEL 8 delivers high performance for your applications by leveraging the latest hardware features and optimizations. RHEL 8 supports up to 4 PB of physical memory, 128 TB of virtual memory, 8192 logical CPUs, and 64 TB of file system size. RHEL 8 also supports new hardware technologies, such as Intel Optane DC persistent memory modules (PMEM), AMD EPYC processors, IBM POWER9 processors, ARMv8-A processors, NVIDIA GPUs, and Mellanox network adapters.
Support
RHEL 8 comes with world-class support from Red Hat, the leading provider of open source solutions. You can access Red Hat's award-winning technical support team anytime via phone, email, or web portal. You can also benefit from Red Hat's extensive knowledge base, documentation, training, certification, and consulting services. You can also join the Red Hat community and connect with other users, developers, and experts who can help you with your questions and issues.
Compatibility
RHEL 8 ensures compatibility and interoperability with your existing applications and infrastructure. RHEL 8 supports the same application binary interface (ABI) as RHEL 7, which means that you can run your RHEL 7 applications on RHEL 8 without any changes or recompilation. RHEL 8 also supports the same application programming interface (API) as RHEL 7, which means that you can use the same libraries and tools to develop your applications on RHEL 8. Furthermore, RHEL 8 is compatible with various cloud platforms, such as Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), IBM Cloud, and Alibaba Cloud.
Comparison with other Linux distributions
RHEL 8 is not the only Linux distribution available for enterprise servers. There are other popular Linux distributions, such as Ubuntu, SUSE, and Oracle Linux. How does RHEL 8 compare with them? Here are some of the main differences:
Distribution
Release Model
Support Cycle
Subscription Cost
Key Features
RHEL 8
Major releases every 3-4 years, minor releases every 6 months
10 years of full support, plus up to 3 years of extended support
Varies depending on the product variant and the number of sockets or cores
Application Streams, Container Tools, Security Enhancements, System-wide Cryptographic Policies, Nftables, OpenSSL 1.1.1, TPM 2.0
Ubuntu Server LTS
Long-term support (LTS) releases every 2 years, interim releases every 6 months
5 years of standard support, plus up to 5 years of extended security maintenance (ESM)
Free for up to 3 machines, or $75 per year per machine for ESM and livepatching
Snap packages, LXD containers, ZFS file system, Netplan network configuration, AppArmor security module, WireGuard VPN protocol
SUSE Linux Enterprise Server (SLES)
Major releases every 3-4 years, service packs every year
10 years of full support, plus up to 3 years of long-term service pack support (LTSS)
Varies depending on the product variant and the number of sockets or cores
Btrfs file system, Snapper snapshot management, YaST configuration tool, SUSE Manager management tool, SUSE Linux Enterprise High Availability Extension (HAE)
Oracle Linux
Major releases every 3-4 years, minor releases every 6 months
10 years of full support, plus up to 4 years of extended support
Free for basic support, or $499-$2,299 per year per system for premier support
Ksplice zero-downtime patching, Unbreakable Enterprise Kernel (UEK), Btrfs file system, DTrace dynamic tracing tool, Oracle Database integration
As you can see, RHEL 8 has some unique features and benefits that set it apart from other Linux distributions. RHEL 8 is designed to meet the needs of enterprise customers who value stability, performance, support, and compatibility. RHEL 8 also offers innovation and flexibility through its Application Streams and Container Tools, which enable you to run your applications on any environment with ease and confidence.
Conclusion
In this article, you have learned how to download and install RHEL 8 on your server, what are the key features and benefits of RHEL 8, and how it compares with other Linux distributions. You have also seen that RHEL 8 is the best choice for your enterprise needs, as it provides a consistent, stable, and high-performance platform for running your mission-critical applications on any environment.
If you are interested in trying out RHEL 8 for yourself, you can get a free developer account at for more information and tips on how to use RHEL 8 effectively.
Thank you for reading this article. I hope you have enjoyed it and learned something new. If you have any questions or feedback, please feel free to leave a comment below. I would love to hear from you.
FAQs
Here are some frequently asked questions about RHEL 8 and their answers:
What are the system requirements for RHEL 8?
The minimum system requirements for RHEL 8 are:
1 GHz or faster processor
2 GB of RAM
10 GB of disk space
A network connection
A DVD drive or a USB port for installation media
How can I upgrade from RHEL 7 to RHEL 8?
You can upgrade from RHEL 7 to RHEL 8 using the Leapp tool, which is a command-line utility that automates the upgrade process. You can install Leapp from the Extras repository using yum or dnf. Before you run Leapp, you should make sure that your system meets the upgrade requirements, such as having enough disk space, backing up your data, and disabling unsupported third-party repositories. You should also check the document for more details and recommendations.
How can I get support for RHEL 8?
You can get support for RHEL 8 by contacting Red Hat's technical support team via phone, email, or web portal. You can also access Red Hat's knowledge base, documentation, training, certification, and consulting services. Additionally, you can join the Red Hat community and connect with other users, developers, and experts who can help you with your questions and issues.
How can I learn more about RHEL 8?
You can learn more about RHEL 8 by exploring the , which is a free online course that introduces you to the basics of RHEL 8.
How can I provide feedback or suggestions for RHEL 8?
You can provide feedback or suggestions for RHEL 8 by using the Feedback button in the web console or by sending an email to rhel-feedback@redhat.com. You can also participate in the , which allows you to test new features and provide feedback before they are released to the public. 44f88ac181
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