How to choose between CentOS7 and centOS8

The following column centosUsage Tutorial will introduce you to the choice between CentOS7 and centOS8. I hope it will be helpful to friends in need!

Currently the default of major domestic cloud serverscentos The system version is still 7, vultr and centos are only 8

Official website, download, the default is also 8. As a server for local host play, you should try centos8

Download the previous version abroad, download link:

• Official website default download: https ://wiki.centos.org/Download
• Previous version of the official website: https://www.centos.org/download/
• Alibaba Cloud Mirror: http://mirrors.aliyun. com/centos/7.7.1908/isos/x86_64/

It is recommended to install the mini version without gui. The download speed of Alibaba Cloud image is still good.

CentOS8 provides TCP network stack version 4.16.

• The default packet filtering framework used is nftables.
• Most importantly, these changes ensure better stability, scalability and performance.
• nftables replaces iptables, iptablesip6table, arptables and ebtables as a single framework for IPv4 and IPv6 protocols. Additionally, the firewalld deamon will use the same subsystem for filtering network transactions as the default backend.

CentOS version 8 comes with KVM (qemu-kvm 2.12) and comes with YUM package manager v4.0.4 version

The difference between CentOS7 and CentOS8

Development language Supports different

8 versions of

• Python 3
• PHP 7.2
• Ruby 2.5
• Node.js 10
• java:: OpenJDK 11, OpenJDK 8, IcedTea-Web and various Java tools such as Ant, Maven or Scala.

7Supports the following editing languages

• Python 2 (2.7.X)
• PHP 5.4
• Ruby 2.0.0
• OpenJDK8 is used as the default Java Development Kit (JDK), and Java 8 is used as the default Java version.

Differences in database:

8Default supported database:

• MySQL 8.0
• MariaDB 10.3
• PostgreSQL 10 and PostgreSQL 9.6
• Redis 5.0
• MariaDB is the default implementation of MySQL in Red Hat Enterprise Linux 7

I don’t care too much about other differences

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