What's new in CentOS 8

About CentOS 8

CentOS 8 is the latest Linux based operating system. As this is a Linux distribution derived from Red Hat Enterprise Linux (RHEL), the CentOS team had to build an infrastructure to support the newly introduced RHEL 8.

CentOS is widely used among developers and system administrators as it offers full control over its highly customizable open-source software packages. It is stable and has a large and active support community behind it. Due to its reliability, it has become a popular choice among operating systems for servers.

CentOS 8 features:

1. The Default Desktop environment is GNOME 3.28.

2. CentOS 8 does not provide any verification and certification.

3. Default kernel version 4.18

4. Support AMD & Intel 64bit architecture

Networking & Firewall:

Iptables are replaced with nftables framework

Software Management:

YUM package manager is based on DNF(Dandified) technology as its backend.

CentOS 8 has new package manager DNS, which can be used to install packages.

It brings two main repository-

- BaseOS repository

- AppStream repository

While BaseOS includes all the underlying OS packages, AppStream has the application-related packages, developer tools, databases, and others.

Languages, Web server & Database:

- Python 2.7 is replaced with default 3.6

- Apache HTTPD available with 2.4 version, Nodejs, PHP7.2, MariaDB 10.3, MySQL 8.0 etc.

Difference between CentOS 7 and CentOS 8

Feature	CentOS 7	CentOS 8
File System	Support XFS file system	Support XFS file system
Kernel version	3.1	3.18
Package Manager	Uses YUM v3	Uses YUM v4
Python default version	Python 2.7	Python 3.6
HTTPD/Apache version	2.4	2.4
Other programming package	PHP 5.4.16, Ruby 2.0.0, Perl 5.16.3	PHP 7.2, Ruby 2.5, Perl 5.26
Databases	MySQL 5.5, MariaDB 5.5, PostgreSQL 9.2	MariaDB 10.3, MySQL 8.0, PostgreSQL 10, PostgreSQL 9.6, and Redis 5
Maximum RAM Support	RAM 12TB	RAM 64 TB
Desktop Environment	Default GNOME Display Manager is X.Org server	Default GNOME Display Manager is Wayland, GNOME Shell version 3.28
Firewall	Uses iptables packet filtering framework	Uses nftables packet filtering framework

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About Penguin Technology

I am a passionate cloud and DevOps professional specializing in Linux and open-source solutions. Through this blog, I share my knowledge and experience with the community, offering tips and insights on cloud technologies and DevOps practices.