Difference Between RHEL 7 and RHEL 8
Linux is an open-source
Unix-like operating system based on
Linux kernel. There are various Linux distributions available.
List of 10 Linux Distributions -
|
1. |
RHEL |
|
2. |
Fedora |
|
3. |
Linux Mint |
|
4. |
OpenSUSE |
|
5. |
PCLinuxOS |
|
6. |
Debian |
|
7. |
Ubuntu |
|
8. |
CentOS |
|
9. |
Arch Linux |
|
10. |
Slackware Linux |
There are numerous
changes have been done between RHEL 7 and RHEL
8.
In this article, we have
added the comparison table which is based on the category of RHEL. If we missed any points please update us with
comments later we will add in our article.
Please share this
information to others who want to know about RHEL.
First Release Version
|
RHEL 7 |
RHEL 8 |
|
11-12-2013(RHEL
7.0 Beta) |
07-05-2019
(RHEL 8) |
Latest Release Version
|
RHEL 7 |
RHEL 8 |
|
29-09-2020(RHEL 7.9) |
03-11-2020(RHEL 8.3) |
Codename
|
RHEL 7 |
RHEL 8 |
|
Maipo(based
on Fedora 19,Fedora 20)
|
Ootpa(based
on Fedora 28) |
Default File System
|
RHEL 7 |
RHEL 8 |
|
XFS
|
XFS |
Note: XFS – (Extents File System)
File System – It is a structured collection of files on a disk
drives or a partition.
Maximum RAM Supported
|
RHEL 7 |
RHEL 8 |
|
12 TB
|
24
TB(Based on x86_64 architecture) |
Latest RHEL Kernel Version
|
RHEL 7 |
RHEL 8 |
|
3.10.0-1160
|
4.18.0-240 |
Note:- Kernel – Kernel is a central component of an operating system
that controls/manages the operations of computers and hardware.
Default Database
|
RHEL 7 |
RHEL 8 |
|
MariaDB
|
MySQL 8.0,
MariaDB 10.3, PostgreSQL 10 and 9.6, and Redis 5.0 |
Programming Languages New Version
|
RHEL 7 |
RHEL 8 |
|
Python 2, PHP 5.4, Ruby 2.0.0
|
Python 3, PHP 7.2, Ruby 2.5, Node.js 10
|
Standard/Default Repo Channels
|
RHEL 7 |
RHEL 8 |
|
Repo ID: rhel-7-server-rpms Repo Name: Red Hat Enterprise Linux 7 Server (RPMs) |
Repo ID:
rhel-8-for-x86_64-appstream-rpms Repo Name: Red Hat Enterprise Linux for x86_64 – AppStream (RPMs) Repo ID: rhel-8-for-x86_64- BaseOS-rpms Repo Name: Red Hat Enterprise Linux for x86_64-BaseOS (RPMs) |
Note: Linux repo – Linux repository – Linux repo is the location of storage from which the system retrieves and installs OS updates and applications.
Minimum Required Disk Space
|
RHEL 7 |
RHEL 8 |
|
10GB Minimum, 20GB Recommended |
10GB Minimum, 20GB Recommended |
Is the Upgrade Possible?
|
RHEL 7 |
RHEL 8 |
|
Yes, RHEL
7.7 to RHEL 8
|
Yes |
Service Manager
|
RHEL 7 |
RHEL 8 |
|
Service
Command
|
systemctl
Command
|
Default Display Server
|
RHEL 7 |
RHEL 8 |
|
X.Org |
Wayland
|
Default Firewall
|
RHEL 7 |
RHEL 8 |
|
Firewalld,
It uses the IPtables framework in the backend
|
Firewalld,
It uses nftables framework in the backend
|
Note: Iptables – It is a Linux firewall command line that allows the Linux system administrators to manage incoming and outgoing traffic via a set of some configurable table rules.
Nftables – It replaces the existing iptables framework.
File System Check
|
RHEL 7 |
RHEL 8 |
|
Xfs_repair
|
Xfs_repair
|
Note: - XFS (Extents File System) – It’s work to repairs corrupt or damaged XFS File System.
ISO Image
|
RHEL 7 |
RHEL 8 |
|
Only
64-Bit
|
Only
64-Bit
|
Virtual Machines Management
|
RHEL 7 |
RHEL 8 |
|
cockpit
|
Virt-manager
|
Note:- Cockpit – it is a server administration tool
that allows you to easily monitor and administer Linux Servers via a web
browser.
Virt-manager – it is a desktop tool for managing virtual machines
Network Time Synchronization
|
RHEL 7 |
RHEL 8 |
|
Using either Chronyd or ntp |
Using only
Chronyd The ntp is
not supported
|
Note:- NTP (Network Time Protocol) – is used to synchronize the time of Linux System with the NTP server.
Chrony – It is an implementation of the Network Time Protocol (NTP).
End of Full Support
|
RHEL 7 |
RHEL 8 |
|
Q4 2019
|
May 2024
|
End of Maintenance Support 1
|
RHEL 7 |
RHEL 8 |
|
Q42020
|
N/A
|
End of Maintenance Support 2
|
RHEL 7 |
RHEL 8 |
|
30-June-2024
|
May-2029
|
End of Extended Life Support
|
RHEL 7 |
RHEL 8 |
|
N/A
|
TBD
|
Enable Service on Boot
|
RHEL 7 |
RHEL 8 |
|
systemctl
command
|
systemctl
command
|
To viewports/sockets
|
RHEL 7 |
RHEL 8 |
|
ss and
lsof
|
ss and
lsof
|
GUI Interface (Desktop)
|
RHEL 7 |
RHEL 8 |
|
Gnome 3
|
Gnome 3.8 |
Max Supported File & Filesystem Size
|
RHEL 7 |
RHEL 8 |
|
XFS=500TB XFS=500TB
|
XFS=500TB XFS=1024TB
|
All the above information is based on the Red Hat Articles and releases notes. If we forget to include any points please update us in the comment section so that we can update the articles/post.
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