Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 1000 people technical exchange QQ group, note 【public account】 to pass faster 1. Two Types of Users in Linux Super User (root) and Regular User There are two types of users in Linux: Super User (root) and Regular User Super User: Can do … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group of 1000 people, note 【Public Account】 for faster access What is an Operating System An operating system is software that manages hardware and software resources. The operating system manages hardware and software resources (means) to provide users … Read more
Linux Commands for Managing Files and Directories pwd——Prints the current path of the user, print work directory, used in text mode cd——Changes the current directory, change directory Format: cd <directory_name> [root@localhost~]# cd.. Go back to the parent directory [root@localhost~]# cd Go to the user’s home directory [root@localhost~]# cd/home Switch to the home directory using the … Read more
1. Check /etc/redhat-release cat /etc/redhat-release Output: CentOS Linux release 7.9.2009 (Core) 2. Check /etc/os-release cat /etc/os-release Output: NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" Note: If it is CentOS 7.9, VERSION_ID=”7″ will show the major version number as 7, while PRETTY_NAME will … Read more
Saving time and effort on installing files and scripts across multiple hosts. — David Both Useful original links Please visit the “Original Link” at the end for clickable in-text links, full-size original images, and related articles. Acknowledgments Compiled from | https://opensource.com/article/18/9/how-build-rpm-packages Author | David Both Translator | Liang Chen (Flowsnow) 🌟🌟🌟🌟 Total translated: 28.0 Contribution … Read more
To speed up operations and reduce disk I/O, the kernel typically caches as much memory as possible, which is known as Cache Memory. By design, pages containing cached data can be repurposed as needed (for example, by applications). Cache memory is not automatically released after a program finishes running. This can lead to a situation … Read more
1. Nginx Related Commands Check Nginx Status ps -ef|grep nginx Start Nginx cd /usr/local/nginx/sbin/ ./nginx Restart Nginx After Modifying Configuration File cd /usr/local/nginx/sbin/./nginx -s reload 2. Common Docker Commands View All Containers, Including Running and Stopped docker ps -a View All Running Containers docker ps Start a Stopped Container docker start ContainerNameOrID Restart a Container … Read more
Word count: 1104, reading time approximately 6 minutes Udev Hotplug Rules in Linux Background Udev is a tool used in Linux systems to manage device nodes. It can dynamically create device files based on the attributes of the devices and execute specific commands, typically used for handling hotplugging. Udev rules are used to specify these … Read more
In the world of Linux, the root password is like a master key to unlock the system’s treasures, holding supreme privileges. However, if this “key” is lost, it can lead to significant trouble. Imagine being excited to log into the server and showcase your skills, only to be met with the unyielding “Password incorrect” message, … Read more
Follow+Star Public Account Number, don’t miss exciting content System Settings Common Mirror Sources Mirror site addresses Official list provided: https://www.debian.org/mirror/list Some domestic ones: ftp.cn.debian.org mirror.bjtu.edu.cn mirror.lzu.edu.cn mirror.nju.edu.cn mirrors.163.com mirrors.bfsu.edu.cn mirrors.hit.edu.cn mirrors.huaweicloud.com mirror.sjtu.edu.cn mirrors.tuna.tsinghua.edu.cn mirrors.ustc.edu.cn Usage: (generally similar) Tsinghua Source –mirror 'https://mirrors.ustc.edu.cn/debian/' Tencent Source –mirror 'https://mirrors.aliyun.com/debian/' Aliyun Source –mirror 'https://mirrors.aliyun.com/debian/' Huawei Source –mirror 'https://mirrors.huaweicloud.com/debian/' SWAP & … Read more