01 The Yocto file system supports QT by default. So how do we run our QT programs on the Yocto file system? In this chapter, we will learn how to develop QT programs in a Yocto file system + Ubuntu environment. Note that the development environment is based on “qtcreator-3.5.1” (Ubuntu 16.04.6), and the library … Read more
Hello everyone, I am Bug Jun~ In most people’s impression, writing a technical book is just about organizing what you know. However, when the subject is the Linux kernel, it becomes like performing ballet on a tightrope — one of the most complex open-source software in the world, a giant system composed of 28 million … Read more
Table of Contents Apache Log Statistics Nginx Log Statistics Web Service Status Statistics Other Statistical Combinations Count Statistics This article collects some common statistics commands for Apache/Nginx server logs in Linux operations. Apache Log Statistics # List the top IPs with the most visits today [[email protected] httpd]# cut -d- -f 1 access_log | uniq -c … Read more
Introduction Mastering system monitoring commands is a fundamental skill for Linux operation and maintenance. This note aims to organize and summarize commonly used monitoring commands along with their core functions and practical scenarios, facilitating quick review and learning to enhance system management and troubleshooting efficiency. 1. Comprehensive Performance Monitoring (CPU, Memory, Load) 1.<span>top</span> •Core Function: … Read more
When a company experiences a hacker intrusion; when the system crashes; when a security incident affects normal business operations, can you respond immediately and provide a solution? The following article will teach you the Linux emergency response process! Intrusion Investigation Approach 01 Apache Log Path Access Log: /var/log/apache2/access.log (Debian/Ubuntu) or /var/log/httpd/access_log (CentOS/RHEL) Nginx Log Path … Read more
1. Exploring Processes in Linuxps Command The key to using the ps command is not to memorize all available options, but to remember the ones that are most useful to you. Most Linux system administrators will keep a set of commonly used options in mind to extract useful process information, while referring to documentation when … Read more
Linux<span>pidof</span> Command 1. Overview In a Linux system, a process is an instance of a program that is currently running. Each process has a unique Process ID (PID). When performing system administration, performance debugging, resource control, and security protection, it is often necessary to know the PID corresponding to a specific program.<span>pidof</span> is a command … Read more
1. Common Linux Commands and Their Meanings pwd: print work directory, prints the current directory and displays the absolute path of the current working directory. ps: process status, similar to the Windows Task Manager, commonly used parameters -auxf, ps -auxf are used to display process status. df: disk free, displays information about available disk space … Read more
Table of Contents Check if the kernel supports quotas Check if the mount properties of the specified partition meet the conditions quotacheck generates configuration files for users and groups edquota edits the quota file to set specified limit sizes Start quota management Stop quota management quota view quota information for specified users and groups repquota … Read more
Learning Linux Shell commands is a gradual process. Beginners can start with basic commands and gradually master scripting and system management. During the learning process, it is recommended to practice hands-on and refer to online documentation and community resources. At the same time, as technology continues to evolve, Linux is also constantly updating. Maintaining a … Read more