Summary of Linux Server Hardware Information Queries and Daily Maintenance Commands

1. Server Hardware Information Queries 1.1 CPU Information Queries Command Function Description Example <span>lscpu</span> Displays CPU architecture, number of cores, number of threads, etc. <span>lscpu</span> <span>cat /proc/cpuinfo</span> Detailed CPU information (model, cache, frequency) <span>cat /proc/cpuinfo</span> <span>lshw -C cpu</span> View detailed CPU information (vendor, number of cores, instruction set) <span>sudo lshw -C cpu</span> <span>nproc</span> View the … Read more

Chapter 2: Basic Linux Commands, Practical Examples of the [touch] Command

In Linux, every file is associated with timestamps, which store information such as the last access time, last modification time, and last change time. Therefore, whenever we create a new file, access, or modify an existing file, the timestamps of that file are automatically updated. This article will introduce some practical examples of the Linux … Read more

Vulnerability Alert | Local Privilege Escalation Vulnerabilities in Linux sudo

0x00 Vulnerability ID CVE-2025-32462 CVE-2025-32463 0x01 Danger Level High Risk 0x02 Vulnerability Overview Sudo is a tool used in Unix-like systems that allows authorized users to execute commands with the security privileges of another user, widely used in system administration and operations. 0x03 Vulnerability DetailsCVE-2025-32462Vulnerability Type:Local Privilege EscalationImpact:Privilege EscalationSummary:The Linux sudo host privilege escalation vulnerability … Read more

Managing the frps Service on Linux with systemd: Installation, Configuration, and Automation Guide

On Linux systems, using systemd allows for easy control of the frps server’s startup, shutdown, background configuration, and automatic startup on boot. Below are the specific operational steps: 1. Install systemd If systemd is not yet installed on your Linux server, you can use a package manager such as yum (for CentOS/RHEL) or apt (for … Read more

Experiencing Disk I/O Lag on Linux? Step-by-Step Guide to Identify the Culprit Process!

Experiencing Disk I/O Lag on Linux? Step-by-Step Guide to Identify the Culprit Process! Have you ever encountered a situation while using Linux where the disk suddenly becomes sluggish, the system response is delayed, and even entering commands takes forever? It is very likely that a certain process is excessively reading and writing to the disk, … Read more

Comprehensive Guide to Common Ansible Modules and Commands

Command Module ansible all -m command -a “ls /home”: Executes the ls /home command on all remote hosts, directly returning the directory contents. ansible webservers -m command -a “pwd”: Executes the pwd command on all hosts in the webservers group, displaying the current working directory. ansible 192.168.1.10 -m command -a “date”: Executes the date command … Read more

Linux Dressed as Windows 11 Has Arrived, Super Shocking!

Source: Java-based web project It is well known that Ubuntu is one of the most popular Linux distributions. After Microsoft embraced Linux, Windows became the best Linux distribution (not really). What kind of sparks would fly if the two were combined? Introduction to Wubuntu Wubuntu, also known as “Windows Ubuntu”, is an operating system developed … Read more

Comprehensive Guide to the Linux Directory Command

Create DirectoryCreate a subdirectory in the current directory # Create a subdirectory named mengyuan in the current directory mkdir ./mengyuan Create multiple levels of subdirectories in the current directory # Create a subdirectory named mengnianxi in the subdirectory named mengyuan in the current directory # Note: With the -p parameter, if the subdirectory named mengyuan … Read more

Managing File and Directory Permissions in Linux

There are three types of permissions: rwx, which stand for read, write, and execute. Files correspond to three object groups. Each object group protects the three types of permissions: rwx. The three object groups are the owner’s permissions, the group’s permissions, and the permissions for other users in the system. Binary representation of permissions: r … Read more

Zabbix Installation & Oracle Linux System Installation (with Links)

Press the up key to select the installation of Linux and press Enter to confirm Select software environment: minimal installation, additional software: standard installation, UNIX compatibility, network server, system tools Set up network and hostname Set root password Setup complete — starting system installation System image file: OracleLinux-R8-U8-x86_64-dvd.iso Link: https://pan.baidu.com/s/1EKFVL9aY9tA78LijcpcBZw?pwd=7264 Extraction code: 7264 Long press … Read more