The following tutorial column from centos will introduce to you that CentOS 8 will no longer be maintained. I hope it will be helpful to friends who need it!
On December 8, the CentOS development team announced on its official blog, CentOS 8 will end support at the end of 2021. Due to its large user base and user contributions, CentOS 7 will be maintained as planned until the end of its life cycle, which is June 30, 2024. In the next year, the focus will be on CentOS Stream.
Related recommendations: "linux video tutorial"
Short-lived CentOS 8
CentOS 8 was officially released on September 24, 2019. This version is different from the previous package library. It is mainly divided into two, one is BaseOS and AppStream, and begins to use dnf as the program to manage packages. Although CentOS 8 is the latest version, the most widely used version currently is CentOS 7. Therefore, many enterprise users may not have upgraded to this version yet, and some people joked that this version was over before it even started.
Red Hat officials also revealed the timetable for Red Hat’s sponsorship of CentOS Linux and CentOS Stream:
- There will be no CentOS Linux 9.
- Updates for the CentOS Linux 8 distribution will continue until December 31, 2021.
- Updates for the CentOS Linux 7 distribution will continue until June 30, 2024, as before.
- The CentOS Linux 6 distribution has ended on November 30, 2020.
- As part of the RHEL 9 development process, CentOS Stream 9 will be released in the second quarter of 2021.
- The CentOS Stream 8 release will be updated throughout the RHEL support phase.
Successor CentOS Stream
The CentOS development team stated on its official blog:
CentOS will focus on building CentOS Stream next. Over the next year, we will shift our focus from rebuilding CentOS Linux for Red Hat Enterprise Linux (RHEL) to CentOS Stream, which follows current RHEL releases. As an upstream project of RHEL, CentOS Stream will regularly release new versions, and features that have been practiced and verified in CentOS Stream will be added to RHEL. Officials also recommend that if you are using CentOS Linux 8 in a production environment and are concerned that CentOS Stream may not meet your needs, we recommend that you contact RedHat for options.
Chris Wright, senior vice president and CTO of Red Hat, stated in the article "CentOS Stream: Building an Innovative Future for Enterprise Linux":
CentOS Stream is not CentOS Linux replacement; rather, it is a natural and inevitable next step toward achieving the project's goal of furthering enterprise Linux innovation.
Stream shortens the feedback loop between developers from all aspects of the RHEL environment, making it easier for all voices to be heard, whether large partners or individual contributors, as we design future versions of RHEL .
Developers are dissatisfied. The founder starts a new project
However, as soon as the news of CentOS stopping maintenance came out, it aroused strong dissatisfaction among the majority of developers.
In response, CentOS founder Gregory Kurtzer launched a new project Rocky Linux on Github (https://github.com /hpcng/rocky), the number of Stars currently exceeds thousands, and he also said:
Since CentOS has changed direction, Rocky Linux is a community enterprise operating system designed to compete with Red Hat Enterprise Linux
100% compatible.
What do you think of it?
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CentOS is an open source distribution based on RedHatEnterpriseLinux, focusing on stability and long-term support, suitable for a variety of server environments. 1. The design philosophy of CentOS is stable and suitable for web, database and application servers. 2. Use YUM as the package manager to release security updates regularly. 3. Simple installation, you can build a web server with a few commands. 4. Advanced features include enhanced security using SELinux. 5. Frequently asked questions such as network configuration and software dependencies can be debugged through nmcli and yumdeplist commands. 6. Performance optimization suggestions include tuning kernel parameters and using a lightweight web server.

CentOS is widely used in server management and web hosting. Specific methods include: 1) using yum and systemctl to manage the server, 2) install and configure Nginx for web hosting, 3) use top and mpstat to optimize performance, 4) correctly configure the firewall and manage disk space to avoid common problems.

CentOS is a stable, enterprise-grade Linux distribution suitable for server and enterprise environments. 1) It is based on RedHatEnterpriseLinux and provides a free, open source and compatible operating system. 2) CentOS uses the Yum package management system to simplify software installation and updates. 3) Support advanced automation management, such as using Ansible. 4) Common errors include package dependency and service startup issues, which can be solved through log files. 5) Performance optimization suggestions include the use of lightweight software, regular cleaning of the system and optimization of kernel parameters.

Alternatives to CentOS include RockyLinux, AlmaLinux, OracleLinux, and SLES. 1) RockyLinux and AlmaLinux provide RHEL-compatible binary packages and long-term support. 2) OracleLinux provides enterprise-level support and Ksplice technology. 3) SLES provides long-term support and stability, but commercial licensing may increase costs.

Alternatives to CentOS include UbuntuServer, Debian, Fedora, RockyLinux, and AlmaLinux. 1) UbuntuServer is suitable for basic operations, such as updating software packages and configuring the network. 2) Debian is suitable for advanced usage, such as using LXC to manage containers. 3) RockyLinux can optimize performance by adjusting kernel parameters.

The CentOS shutdown command is shutdown, and the syntax is shutdown [Options] Time [Information]. Options include: -h Stop the system immediately; -P Turn off the power after shutdown; -r restart; -t Waiting time. Times can be specified as immediate (now), minutes ( minutes), or a specific time (hh:mm). Added information can be displayed in system messages.

The key differences between CentOS and Ubuntu are: origin (CentOS originates from Red Hat, for enterprises; Ubuntu originates from Debian, for individuals), package management (CentOS uses yum, focusing on stability; Ubuntu uses apt, for high update frequency), support cycle (CentOS provides 10 years of support, Ubuntu provides 5 years of LTS support), community support (CentOS focuses on stability, Ubuntu provides a wide range of tutorials and documents), uses (CentOS is biased towards servers, Ubuntu is suitable for servers and desktops), other differences include installation simplicity (CentOS is thin)

Steps to configure IP address in CentOS: View the current network configuration: ip addr Edit the network configuration file: sudo vi /etc/sysconfig/network-scripts/ifcfg-eth0 Change IP address: Edit IPADDR= Line changes the subnet mask and gateway (optional): Edit NETMASK= and GATEWAY= Lines Restart the network service: sudo systemctl restart network verification IP address: ip addr


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