


How to detect server network status in Linux
这篇文章主要介绍了Linux 检测服务器是否连接着网络的相关资料,需要的朋友可以参考下
Linux 检测服务器是否连接着网络
摘要: 每隔5分钟检测一次服务器是否连接着网络,如果三次检测都没有网络?则自动关机! 主要使用场景: 由于自己有一台服务器放在偏远的老家,有可能会遇到停电导致断网的问题,并且停电后UPS使用时间也有限制, 因此设计此脚本为了解决停电的时候服务器突然断电引起的各种问题,当停电后网络也就不通了,此时需要自动关闭服务器. 当然,来电后需要手动启动服务器!!!
#!/bin/bash # 检测服务器是否连接着网络,如果网络不通 则 3次后 关机 # crontab -e # */5 * * * * ./check.sh echo "Starting test network was clear..." if test -e ./checkInfo then echo "CheckInfo File Exist..." else cat /dev/null > ./checkInfo fi last_res=`head -1 ./checkInfo` checkInternet(){ ping_res=1 for url in "8.8.8.8" "61.139.2.69" "114.114.114.114" "168.95.1.1" "223.5.5.5" "180.76.76.76" do echo "PING ${url}" ping=`ping -c 3 ${url}|awk 'NR==7 {print $4}'` if [ ${ping} -eq 0 ] then ping_res=1 else ping_res=2 fi if [ ${ping_res} -eq 2 ] then break fi done return ${ping_res} } checkInternet result="$?" if [ ${result} -eq 1 ] then if [ "${last_res}" = "1" ] then echo "2" > ./checkInfo elif [ "${last_res}" = "2" ] then cat /dev/null > ./checkInfo init 0 else echo "1" > ./checkInfo fi else cat /dev/null > ./checkInfo fi
【相关推荐】
1. Mysql免费视频教程
2. 详解innodb_index_stats导入数据时 提示表主键冲突的错误
3. 实例详解 mysql中innodb_autoinc_lock_mode
The above is the detailed content of How to detect server network status in Linux. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



How to use Docker Desktop? Docker Desktop is a tool for running Docker containers on local machines. The steps to use include: 1. Install Docker Desktop; 2. Start Docker Desktop; 3. Create Docker image (using Dockerfile); 4. Build Docker image (using docker build); 5. Run Docker container (using docker run).

Docker process viewing method: 1. Docker CLI command: docker ps; 2. Systemd CLI command: systemctl status docker; 3. Docker Compose CLI command: docker-compose ps; 4. Process Explorer (Windows); 5. /proc directory (Linux).

Troubleshooting steps for failed Docker image build: Check Dockerfile syntax and dependency version. Check if the build context contains the required source code and dependencies. View the build log for error details. Use the --target option to build a hierarchical phase to identify failure points. Make sure to use the latest version of Docker engine. Build the image with --t [image-name]:debug mode to debug the problem. Check disk space and make sure it is sufficient. Disable SELinux to prevent interference with the build process. Ask community platforms for help, provide Dockerfiles and build log descriptions for more specific suggestions.

VS Code system requirements: Operating system: Windows 10 and above, macOS 10.12 and above, Linux distribution processor: minimum 1.6 GHz, recommended 2.0 GHz and above memory: minimum 512 MB, recommended 4 GB and above storage space: minimum 250 MB, recommended 1 GB and above other requirements: stable network connection, Xorg/Wayland (Linux)

The reasons for the installation of VS Code extensions may be: network instability, insufficient permissions, system compatibility issues, VS Code version is too old, antivirus software or firewall interference. By checking network connections, permissions, log files, updating VS Code, disabling security software, and restarting VS Code or computers, you can gradually troubleshoot and resolve issues.

VS Code is available on Mac. It has powerful extensions, Git integration, terminal and debugger, and also offers a wealth of setup options. However, for particularly large projects or highly professional development, VS Code may have performance or functional limitations.

VS Code is the full name Visual Studio Code, which is a free and open source cross-platform code editor and development environment developed by Microsoft. It supports a wide range of programming languages and provides syntax highlighting, code automatic completion, code snippets and smart prompts to improve development efficiency. Through a rich extension ecosystem, users can add extensions to specific needs and languages, such as debuggers, code formatting tools, and Git integrations. VS Code also includes an intuitive debugger that helps quickly find and resolve bugs in your code.

How to back up VS Code configurations and extensions? Manually backup the settings file: Copy the key JSON files (settings.json, keybindings.json, extensions.json) to a safe location. Take advantage of VS Code synchronization: enable synchronization with your GitHub account to automatically back up all relevant settings and extensions. Use third-party tools: Back up configurations with reliable tools and provide richer features such as version control and incremental backups.
