Red Hat Enterprise Linux 7.2: A Free and Powerful OS for Your Server
If you are looking for a reliable, secure, and high-performance operating system for your server, you might want to consider Red Hat Enterprise Linux 7.2 (RHEL 7.2). This Linux-based OS is designed for businesses and organizations that need a stable platform across hybrid cloud deployments, along with built-in manageability and integration with the broader Red Hat portfolio.
In this article, we will introduce you to RHEL 7.2, its features and benefits, how to download it for free as a developer, how to install it on your server, how to compare it with other Linux distributions, and answer some frequently asked questions.
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What is Red Hat Enterprise Linux 7.2?
A brief introduction to RHEL 7.2 and its features and benefits
RHEL 7.2 is the latest version of Red Hat Enterprise Linux, a leading enterprise Linux distribution that has been around since 2000. RHEL 7.2 was released in November 2015 and includes new features and capabilities that focus on security, networking, and system administration, along with a continued emphasis on enterprise-ready tooling for the development and deployment of Linux container-based applications.
Some of the key features and benefits of RHEL 7.2 are:
It supports multiple architectures, including AMD64, Intel 64, ARM64, IBM Power Systems, and IBM Z.
It offers enhanced security features such as Security-Enhanced Linux (SELinux), mandatory access controls (MAC), Common Criteria and FIPS 140-2 certifications, and live kernel patching.
It provides improved networking performance and functionality with support for TCP/IP stack enhancements, network namespaces, network performance tuning tools, IPv6 support, Open vSwitch, and software-defined networking.
It simplifies system administration tasks with tools such as systemd, firewalld, Cockpit web-based interface, subscription-manager, yum package manager, and Ansible automation.
It enables the development and deployment of Linux container-based applications with tools such as Docker, Kubernetes, Atomic Host, Atomic Registry, Atomic App, Atomic Developer Bundle, OpenShift Container Platform, and Universal Base Image.
It integrates with the new Red Hat Insights, an add-on operational analytics offering designed to increase IT efficiency and reduce downtime through the proactive identification of known risks and technical issues.
It offers a consistent, stable foundation across hybrid cloud deployments, along with built-in manageability and integration with the broader Red Hat management and automation portfolio.
How to download RHEL 7.2 for free as a developer
If you are a developer who wants to use RHEL 7.2 for your personal projects or testing purposes, you can download it for free from the Red Hat Developer Program. All you need is a Red Hat account (which you can create for free) and a no-cost RHEL developer subscription.
This subscription includes:
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RHEL Server (all currently supported releases)
Additional development tools
Numerous add-ons such as resilient storage, scalable file systems, and high-performance networking
Access to the Red Hat Customer Portal for software updates and thousands of knowledge-based articles
RHEL provided via this subscription is for individual developers only. For corporate and enterprise subscription options, please see [this](https How to install RHEL 7.2 on your server
System requirements and recommendations
Before you install RHEL 7.2 on your server, you should make sure that your system meets the minimum requirements and recommendations for the installation. According to the official documentation, these are:
Component
Minimum
Recommended
CPU
1 GHz or faster 64-bit processor
2 GHz or faster 64-bit processor
Memory
1 GB RAM (for minimal installation) or 1.5 GB RAM (for graphical installation)
4 GB RAM or more
Disk space
5 GB (for minimal installation) or 10 GB (for graphical installation)
20 GB or more
Network interface card (NIC)
One NIC with IPv4 or IPv6 support
One or more NICs with IPv4 and/or IPv6 support
Display and input devices
VGA-compatible display and keyboard (for text-based installation) or graphical display and mouse (for graphical installation)
VGA-compatible display and keyboard (for text-based installation) or graphical display and mouse (for graphical installation)
Optical drive or USB port
A DVD-ROM drive or a USB port for the installation media
A DVD-ROM drive or a USB port for the installation media
Internet connection
An active internet connection for software updates and registration (optional)
An active internet connection for software updates and registration (optional)
Installation methods and steps
There are different methods to install RHEL 7.2 on your server, depending on your preferences and availability of resources. The most common methods are:
DVD/USB: You can use a DVD or a USB flash drive that contains the RHEL 7.2 ISO image to boot your system and start the installation process. You can download the ISO image from the Red Hat Customer Portal or the Red Hat Developer Program, depending on your subscription type. You can also use tools such as dd or Rufus to create a bootable DVD or USB from the ISO image.
PXE: You can use a Preboot Execution Environment (PXE) server to boot your system over a network and start the installation process. You need to configure a PXE server that provides the RHEL 7.2 boot image and installation source, as well as a DHCP server that assigns an IP address to your system. You can follow the instructions in the official documentation to set up a PXE server for RHEL 7.2.
Kickstart: You can use a Kickstart file to automate the installation process by specifying the configuration options in advance. A Kickstart file is a plain text file that contains commands and parameters that are normally entered during the interactive installation process. You can create a Kickstart file manually or use tools such as Anaconda or system-config-kickstart to generate one. You can also use tools such as Cobbler or Satellite to manage multiple Kickstart installations across your network.
Anaconda: You can use Anaconda, the default graphical installer for RHEL 7.2, to perform an interactive installation process by following the prompts and selecting the options on the screen. Anaconda allows you to customize various aspects of the installation, such as language, keyboard layout, time zone, partitioning scheme, software selection, root password, user creation, network configuration, and more.
The following are the general steps to install RHEL 7.2 using any of these methods:
Boot your system from the chosen installation media (DVD/USB/PXE/Kickstart) and select Install Red Hat Enterprise Linux 7.2 from the boot menu.
If you are using Anaconda, choose your language and keyboard layout from the welcome screen.
If you are using Anaconda, review and modify the installation summary screen, which shows the default settings for various configuration options. You can click on each option to change it according to your preferences.
If you are using Anaconda, click Begin Installation to start the actual installation process.
If you are using Anaconda, set your root password and create a user account while the installation is in progress.
If you are If you are using Anaconda, wait for the installation to complete and click Reboot to restart your system.
If you are using Anaconda, perform the initial setup tasks, such as accepting the license agreement, enabling or disabling Kdump, joining a subscription management service, and creating a user account (if you skipped it during the installation).
Log in to your system and enjoy your RHEL 7.2 server.
Post-installation tasks and tips
After you install RHEL 7.2 on your server, there are some tasks and tips that you should follow to ensure the optimal performance and security of your system. Some of these are:
Update your system with the latest software packages and security patches by using the yum update command or the Software Update tool.
Configure your firewall and SELinux policies to allow or deny access to your system based on your network and security requirements.
Enable or disable services and daemons that run at boot time by using the systemctl command or the Services tool.
Monitor your system resources and processes by using tools such as top, htop, ps, vmstat, iostat, sar, and System Monitor.
Manage your users and groups by using tools such as useradd, usermod, userdel, groupadd, groupmod, groupdel, and Users and Groups.
Manage your file systems and partitions by using tools such as fdisk, gdisk, parted, mkfs, mount, umount, df, du, and Disks.
Backup and restore your data by using tools such as tar, gzip, bzip2, rsync, scp, sftp, and Backup.
Troubleshoot and resolve any issues that may arise by using tools such as journalctl, dmesg, ping, traceroute, telnet, ssh, curl, wget, and Troubleshooting.
How to compare RHEL 7.2 with other Linux distributions
The advantages of RHEL 7.2 over other enterprise Linux distros
RHEL 7.2 is one of the most popular and widely used enterprise Linux distributions in the world. It has several advantages over other enterprise Linux distros that make it a preferred choice for many businesses and organizations. Some of these advantages are:
It is backed by Red Hat, a leading provider of open source solutions and services that has a proven track record of delivering high-quality products and support to its customers.
It is based on Fedora, a cutting-edge community-driven Linux distribution that provides the latest innovations and technologies in the Linux ecosystem.
It is certified by hundreds of hardware and software vendors that ensure compatibility and interoperability with their products and solutions.
It is supported by a large and active community of developers, users, partners, and customers that contribute to its development and improvement.
It is integrated with the Red Hat portfolio of products and services that offer comprehensive solutions for cloud computing, virtualization, storage, management, automation, security, middleware, analytics, and more.
The alternatives to RHEL 7.2 based on the same code and compatibility
If you are looking for alternatives to RHEL 7.2 that are based on the same code base and offer compatibility with RHEL applications and packages, you might want to consider the following options:
CentOS: CentOS is a community-supported Linux distribution that is derived from the sources of RHEL. It aims to provide a free and stable platform for anyone who wants to use RHEL without paying for a subscription. CentOS follows the same release cycle as RHEL and offers full binary compatibility with it.
Oracle Linux: Oracle Linux is a commercial Linux distribution that is developed by Oracle Corporation. It is based on RHEL sources with some modifications and additions from Oracle. It offers full binary compatibility with RHEL as well as support for Oracle products and services.
Scientific Linux: Scientific Linux is a Linux distribution that is sponsored by Fermi National Accelerator Laboratory (Fermilab) and CERN (European Organization for Nuclear Research). It is based on RHEL sources with some customizations for scientific computing. It offers full binary compatibility with RHEL as well as support for scientific applications and tools.
The best Linux distro for your specific needs and preferences
If you are looking for the best Linux distro for your specific needs and preferences, you might want to consider the following factors:
Your level of experience and familiarity with Linux: If you are new to Linux or prefer a user-friendly and intuitive interface, you might want to choose a Linux distro that has a graphical desktop environment, a software center, and a helpful community. Some examples are Ubuntu, Linux Mint, Fedora, and Manjaro. If you are more experienced or prefer a customizable and flexible interface, you might want to choose a Linux distro that has a minimal or no desktop environment, a command-line interface, and a powerful package manager. Some examples are Debian, Arch Linux, Gentoo, and Slackware.
Your purpose and use case for Linux: If you are using Linux for general purposes such as web browsing, email, office applications, media playback, and gaming, you might want to choose a Linux distro that has a wide range of software availability, compatibility, and support. Some examples are Ubuntu, Linux Mint, Fedora, and Manjaro. If you are using Linux for specific purposes such as programming, server administration, security testing, or scientific computing, you might want to choose a Linux distro that has specialized tools, libraries, and frameworks for your domain. Some examples are RHEL, CentOS, Oracle Linux, Scientific Linux, Kali Linux, and Tails.
Your hardware and system resources: If you have a modern and powerful system with plenty of RAM, CPU, disk space, and graphics card, you might want to choose a Linux distro that can take advantage of your hardware capabilities and offer a smooth and fast performance. Some examples are Ubuntu, Fedora, Manjaro, and Pop!_OS. If you have an older or low-end system with limited RAM, CPU, disk space, and graphics card, you might want to choose a Linux distro that can run on your hardware without compromising too much on functionality and usability. Some examples are Lubuntu, Xubuntu, Puppy Linux, and Tiny Core Linux.
Ultimately, the best Linux distro for you depends on your personal preferences and needs. You can try out different Linux distros by using live CDs or USBs or virtual machines before installing them on your system. You can also read reviews and comparisons of different Linux distros online or ask for recommendations from other Linux users.
Conclusion
In this article, we have introduced you to RHEL 7.2, its features and benefits, how to download it for free as a developer, how to install it on your server, how to compare it with other Linux distributions, and how to choose the best Linux distro for your specific needs and preferences.
We hope that this article has been helpful and informative for you. If you have any questions or feedback about RHEL 7.2 or any other Linux distro, please feel free to leave a comment below or contact us through our website.
FAQs
What is the difference between RHEL 7.2 and RHEL 8?
RHEL 8 is the latest version of Red Hat Enterprise Linux that was released in May 2019. It includes new features and enhancements that focus on hybrid cloud deployments, containerization, security, performance, and usability. Some of the key differences between RHEL 7.2 and RHEL 8 are:
RHEL 8 uses the new Application Streams (AppStreams) concept to deliver multiple versions of user-space components such as programming languages, databases, and web servers. RHEL 7.2 uses the Software Collections (SCLs) concept to provide the same functionality.
RHEL 8 supports the new YUM version 4 package manager that is based on DNF technology. RHEL 7.2 uses the YUM version 3 package manager that is based on RPM technology.
RHEL 8 uses the new Stratis storage management tool that provides advanced features such as snapshots, thin provisioning, and encryption. RHEL 7.2 uses the LVM storage management tool that provides basic features such as partitioning, resizing, and mirroring.
RHEL 8 uses the new Nftables firewall tool that replaces the Iptables firewall tool in RHEL 7.2. Nftables offers a simpler syntax, better performance, and more flexibility than Iptables.
RHEL 8 uses the new Wayland display server protocol that replaces the X.Org display server protocol in RHEL 7.2. Wayland offers better security, stability, and performance than X.Org.
How can I upgrade from RHEL 7.2 to RHEL 8?
If you want to upgrade from RHEL 7.2 to RHEL 8, you need to follow these steps:
Make sure that your system meets the minimum requirements and recommendations for RHEL 8. You can check them [here].
Back up your data and configuration files to a safe location.
Register your system with the Red Hat Subscription Manager and attach a subscription that provides access to RHEL 8 content.
Enable the RHEL 8 repositories by using the subscription-manager repos command or the Subscription Manager GUI.
Install the Leapp utility that performs the upgrade process by using the yum install leapp command.
Run the leapp preupgrade command to check for potential issues and generate a report with suggestions and remediations.
Resolve any issues or warnings that are reported by the Leapp utility.
Run the leapp upgrade command to start the upgrade process. This will reboot your system into the RHEL 8 installer and perform the necessary changes.
Complete the upgrade process by following the prompts and selecting the options on the screen.
Reboot your system and verify that everything is working as expected.
For more details and instructions, you can refer to the official documentation [here].
How can I get support for RHEL 7.2?
If you need support for RHEL 7.2, you have several options available, depending on your subscription type and level of service. Some of these options are:
The Red Hat Customer Portal: This is a web-based platform that provides access to software downloads, updates, documentation, knowledge base articles, case management, product security advisories, and more. You can log in to the Red Hat Customer Portal with your Red Hat account [here].
The Red Hat Support Tool: This is a command-line tool that allows you to interact with the Red Hat Customer Portal from your terminal. You can use it to register your system, attach subscriptions, list available updates, download packages, open and manage support cases, and more. You can install it by using the yum install redhat-support-tool command.
The Red Hat Developer Program: This is a free program that provides access to RHEL for development purposes, along with additional tools, resources, and community support. You can join the Red Hat Developer Program [here].
The Red Hat Forums: These are online discussion boards where you can ask questions, share tips, and get help from other RHEL users and experts. You can browse and participate in the Red Hat Forums [here].
The Red Hat Training and Certification: These are courses and exams that help you learn and validate your skills in using RHEL and other Red Hat products and technologies. You can find out more about the Red Hat Training and Certification [here].
How can I learn more about RHEL 7.2?
If you want to learn more about RHEL 7.2, you have several resources available, such as:
The official documentation: This is a comprehensive collection of guides, manuals, references, and tutorials that cover various aspects of RHEL 7.2, such as installation, configuration, administration, security, networking, storage, virtualization, containerization, development, troubleshooting, and more. You can access the official documentation [here].
The official blog: This is a platform where you can find news, announcements, updates, tips, best practices, use cases, success stories, and more related to RHEL 7.2 and other Red Hat products and technologies. You can read the official blog [here].
The official YouTube channel: This is a channel where you can watch videos that demonstrate how to use RHEL 7.2 and other Red Hat products and technologies in various scenarios and environments. You can subscribe to the official YouTube channel [here].
The official podcast: This is a podcast where you can listen to interviews with Red Hat experts and customers who share their insights and experiences with RHEL 7.2 and other Red Hat products and technologies. You can listen to the official podcast [here].
How can I provide feedback or suggestions for RHEL 7.2?
If you have any feedback or suggestions for RHEL 7.2, you can provide them through various channels, such as:
The Bugzilla: This is a bug tracking system that allows you to report issues, request enhancements, and track their status and resolution. You can use Bugzilla to provide feedback or suggestions for RHEL 7.2 [here ].
The Customer Portal: This is a web-based platform that allows you to access software downloads, updates, documentation, knowledge base articles, case management, product security advisories, and more. You can use the Customer Portal to provide feedback or suggestions for RHEL 7.2 [here].
The Developer Program: This is a free program that provides access to RHEL for development purposes, along with additional tools, resources, and community support. You can use the Developer Program to provide feedback or suggestions for RHEL 7.2 [here].
The Forums: These are online discussion boards where you can ask questions, share tips, and get help from other RHEL users and experts. You can use the Forums to provide feedback or suggestions for RHEL 7.2 [here].
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