CentOS 8 was discontinued on December 31, 2021, and CentOS 7 was discontinued on June 30, 2024. This will result in: No more official support. Security risks increase because there are no more security updates. Software compatibility issues. Response measures include: Migrating to other Linux distributions (such as Rocky Linux, AlmaLinux, or Oracle Linux). Use third-party support services. Back up data regularly. Active monitoring system.
What is the meaning of CentOS stop maintenance
CentOS (Community Enterprise Operating System) is a free and open source Linux distribution for enterprise users based on Red Hat Enterprise Linux (RHEL). On December 31, 2021, the CentOS project announced that CentOS 8 will end maintenance on December 31, 2021, while CentOS 7 will end maintenance on June 30, 2024.
The impact after the suspension of service
CentOS shutdown maintenance means:
- No longer official support: Red Hat and CentOS projects will no longer provide security updates, bug fixes, or technical support.
- Security Risk: Systems that are no longer maintained are more vulnerable to security vulnerabilities, as there are no more official security updates to fix them.
- Software Compatibility Issues: Over time, systems that are no longer maintained may no longer be compatible with new software versions, resulting in application and service failure.
Response measures
In order to deal with CentOS service outage, users can take the following measures:
- Migrate to other Linux distributions: For example, Rocky Linux, AlmaLinux, or Oracle Linux, all compatible alternatives created for CentOS users.
- Use third-party support: Some companies provide paid support services to continue to provide security updates and technical support after CentOS is discontinued.
- Backup data regularly: Backing up data is essential in the event of a security breach or other unexpected event.
- Active monitoring system: Pay close attention to system logs and alarms to discover and resolve any problems in a timely manner.
suggestion
CentOS users are strongly recommended to migrate to other Linux distributions or third-party support services by December 31, 2021 (CentOS 8) or June 30, 2024 (CentOS 7). Continuous use of CentOS systems that are no longer maintained can pose significant risks to system and data security.
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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

CentOS installation steps: Download the ISO image and burn bootable media; boot and select the installation source; select the language and keyboard layout; configure the network; partition the hard disk; set the system clock; create the root user; select the software package; start the installation; restart and boot from the hard disk after the installation is completed.

The command to restart the SSH service is: systemctl restart sshd. Detailed steps: 1. Access the terminal and connect to the server; 2. Enter the command: systemctl restart sshd; 3. Verify the service status: systemctl status sshd.


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