So far, centos8 has not stopped maintenance. On December 8, 2020, the centos development team announced on its official blog that centos8 will end support at the end of 2021, and centos7 will be maintained as planned until the end of the life cycle, which is June 30, 2024.
#The operating environment of this article: centos 8.3.2011, thinkpad t480 computer.
So far, centos8 has not stopped maintenance. On December 8, 2020, the CentOS development team announced on its official blog that 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 2024. On the 30th, the focus will be on CentOS Stream in the next year.
CentOS Linux 8 was officially released on September 25, 2019.
The first official version is 8.0.1905, which will be updated to 8.3.2011 on January 3, 2021.
The main updates are as follows:
1. The kernel is updated to 4.18.0 240
2. The installer is updated, and the root password setting and the installation sequence for creating users are modified.
3. Software management update, dnf management tool updated
4. Shell and command line tool update
5. Infrastructure service update, power management and other services updated
6. Security update, updated multiple security-related components
7. Network update, updated multiple network components, including NetworkManager, etc.
8. Files System updates, LVM supports managing VDO volumes, SCSI stack can be better used for high-performance adapters, LVM RAID supports MD integrity, etc.
9. Desktop experience updates
10. Virtual Chemical support, cloud support and container support updates
Free video tutorial: (linux video tutorial)
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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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