What should I do if the network card under centos always fails to start?-CentOS-php.cn

Home

Operation and Maintenance

CentOS

What should I do if the network card under centos always fails to start?

王林

Mar 30, 2020 pm 04:07 PM

centosnetwork card

What should I do if the network card under centos always fails to start?

Problem:

Cannot start the network card, the error screenshot is as follows:

What should I do if the network card under centos always fails to start?

Cause and solution:

It is related to the NetworkManager package that comes with the network card, just close it.

(Recommended tutorial: centos tutorial)

The commands are as follows:

1. Temporarily shut down

# systemctl stop NetworkManager

2. Permanently shut down the network Management

# systemctl disable NetworkManager

3. Restart the network service

systemctl start network.service

Recommended related video tutorials: linux video tutorial

The above is the detailed content of What should I do if the network card under centos always fails to start?. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

CentOS: An Explanation of the Decision-Making ProcessApr 25, 2025 am 12:03 AM

CentOS is suitable as an enterprise-class server operating system because it is stable, secure and free. 1) It is based on RHEL and provides high compatibility with RHEL. 2) Use yum for package management to ensure that the software is easy to install and update. 3) The community regularly releases security patches, with a support cycle of up to 10 years.

The Discontinuation of CentOS: Understanding the FactorsApr 24, 2025 am 12:01 AM

The reason why CentOS stopped maintaining is RedHat's strategic change. User response strategies include: 1. Migrating to other distributions, such as UbuntuServer, Debian or RockyLinux; 2. Continue to use CentOS7 until June 2024; 3. Turning to CentOSStream; 4. Build solutions, such as custom distributions based on RHEL or using container technology.

CentOS: What Led to the Decision to End SupportApr 23, 2025 am 12:10 AM

RedHatendedsupportforCentOStoshifttowardsacommerciallyfocusedmodelwithCentOSStream.1)CentOStransitionedtoCentOSStreamforRHELdevelopment.2)ThisencourageduserstomovetoRHEL.3)AlternativeslikeAlmaLinux,RockyLinux,andOracleLinuxemergedasreplacements.

Using CentOS: A Guide for System AdministratorsApr 22, 2025 am 12:04 AM

CentOS is an open source operating system based on RedHatEnterpriseLinux, suitable for server environments. 1. Select the appropriate media and options during installation and configure network, firewall and user permissions. 2. Use useradd, usermod and systemctl commands to manage users and services, and update software packages regularly. 3. Basic operations include using yum installation software and systemctl management services, and advanced features such as SELinux to enhance security. 4. Check the system log to solve common errors. Optimizing performance requires monitoring resources and cleaning of unnecessary files.

CentOS: Security, Stability, and PerformanceApr 21, 2025 am 12:11 AM

CentOS is the first choice for server and enterprise environments for its superior security, stability and performance. 1) Security provides forced access control through SELinux to improve system security. 2) Stability is supported by the LTS version for up to 10 years to ensure the stability of the system. 3) Performance significantly improves system response speed and resource utilization by optimizing kernel and system configuration.

The CentOS Replacement Landscape: Current Trends and ChoicesApr 20, 2025 am 12:05 AM

CentOS alternatives should have the characteristics of stability, compatibility, community support and package management. 1.AlmaLinux provides 10 years of support, 2. RockyLinux is initiated by the founder of CentOS to ensure compatibility with CentOS. Migration cost and performance optimization should be considered when choosing.

CentOS: An Introduction to the Linux DistributionApr 19, 2025 am 12:07 AM

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 in Action: Server Management and Web HostingApr 18, 2025 am 12:09 AM

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.

See all articles