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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