RHEL8/Centos8 New Feature vs RHEL7/Centos7

Posted on Monday October 21-2019

TL;DR

The RHEL8 releases on 8.0 / May 7, 2019; 5 months ago. Red Hat Enterprise Linux 8 (Ootpa) is based on Fedora 28, upstream Linux kernel 4.18, GCC 8.2, glibc 2.28, systemd 239, and GNOME 3.28

The CentOS-8 (1905) release platform derived from the sources of Red Hat Enterprise Linux (RHEL)

Here are the some Notable Changes to latest Release.

Application Streams

RHEL 8.0/Centos8 introduces the concept of Application Streams. Each application stream will be supported from two to five years.

Application streams are fully supported for a predefined lifetime for example

Application Stream	Release Date	Retirement Date	Release
varnish 6	May 2019	May 2022	8.0.0
postgresql 10	May 2019	May 2024	8.0.0.
-	-	-	-

Repositories

Red Hat Enterprise Linux 8 is distributed through two main repositories and introduce Red Hat Universal Base Image (UBI).

BaseOS
AppStream

Both repositories are required for a basic RHEL installation, and are available with all RHEL subscriptions.

RHEL8

sh-4.4# dnf repolist
ubi-8-appstream    Red Hat Universal Base Image 8 (RPMs) - AppStream   778
ubi-8-baseos       Red Hat Universal Base Image 8 (RPMs) - BaseOS      659

Centos 8

sh-4.4# dnf repolist
Last metadata expiration check: 0:08:52 ago on Sun Oct 20 11:54:48 2019.
repo id  repo name  status
AppStream  CentOS-8 - AppStream 5069
BaseOS CentOS-8 - Base  2835
extras CentOS-8 - Extras 3

Software and Packages

Package	RHEL8/Centos8	RHEL7/Centos7
YUM	YUM v4: Based on DNF technology	YUM v3 used on RHEL 7/Centos7
Shells and command-line tools	The `nobody` user replaces `nfsnobody`	he `nobody` user and group pair with the ID of 99 and the `nfsnobody` user and group pair with the ID of 65534,
version control systems	`Git 2.18`, `Mercurial 4.8`, and `Subversion 1.10` and Concurrent Versions System (CVS) and Revision Control System (RCS), available in RHEL 7, are not distributed with RHEL 8	Older versions
Python	`Python 3` is the default `Python`	`Python 2.7` is the default `Python`
PHP	distributed with `PHP 7.2`	distributed with `PHP 5.4`
Nodejs	`Node.js` new in RHEL8	NA
Perl	Perl 5.26	Perl 5.20
httpd	Apache HTTP Server 2.4.37
nginx	RHEL 8 introduces `nginx 1.14`	NA
Database	MySQL 8.0, MariaDB 10.3,PostgreSQL 10 Redis 5. `MongoDB` database server is not included in RHEL 8.0	-
squid	Squid 4.4	Older version of squid
Varnish	`Varnish Cache` new in RHEL Varnish Cache 6.0	NA

New Web Console

webconsole	RHEL8	RHEL7
Subscriptions	The web console's Subscriptions page is now provided by the new `subscription-manager-cockpit` package.	opensource
firewall	The Networking page in the RHEL 8 web console now includes a Firewall section	NA
Virtual Machine	The `Virtual Machines` page can now be added to the RHEL 8 web console interface, which enables the user to create and manage libvirt-based virtual machines	NA

Security

Firewall	RHEL8/Centos8	RHEL7/Centos7
nftables	`nftables` replaces `iptables`, `ip6tables`, `ebtables` and `arptables` as the default network packet filtering framework	iptables is default
firewalld	`firewalld` uses `nftables` by default	-

Virtualization

Virtualization	RHEL8/Centos8	RHEL7
Virtualization	`qemu-kvm` 2.12	`qemu-kvm` 1.5.3

References

Next Reading : How to Monitoring All Executed Commands in Linux

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