Year: 2025
Scheduling Commands and Scripts to Run Automatically at Specific Times and Dates Using the ‘at’ Command in Linux
<span>at</span> is a command-line tool used to automatically execute various commands or scripts at a specified time and date. Tasks created with <span>at</span> are executed only once, making it an ideal tool for managing one-time tasks at precise time points. This article will introduce how to use <span>at</span> along with its companion tools <span>batch</span>, <span>atq</span>, … Read more
Top 8 Notepad++ Alternatives for Linux in 2025
Notepad++ is a widely popular free and open-source code editor on the Windows platform, known for its lightweight, efficient, and feature-rich capabilities (such as syntax highlighting, multi-language support, and plugin extensions), making it a preferred choice for developers. However, since Notepad++ does not provide a native Linux version, Linux users need to look for alternatives … Read more
The Kernel Cornerstone of Linux Concurrency Programming: In-Depth Analysis of fork(), clone(), and pthread
When building high-performance, highly concurrent Linux applications, understanding the underlying mechanisms of processes and threads is crucial. <span>fork()</span> and <span>clone()</span> are two core system calls that not only form the basis of process creation but also directly impact the implementation and performance of threads. This article will delve into the workings of <span>fork()</span> and <span>clone()</span> … Read more
25050113 – Data Recovery – R-Linux6
A free fully functional file recovery utility for Linux operating systems and multiple Unix systems using Ext2/Ext3/Ext4 FS file systems System Requirements Intel compatible platform running Windows 11/10/8.1/8/7/Vista/XP/2000 Windows Server 2022/2019/2016/2012/2008/2003. At least 256 MB of RAM, a mouse, and sufficient disk space to store recovered files, image files, etc. Administrative privileges are required to … Read more
Precise Diagnosis and Solutions for Packet Loss Issues on Linux Servers
Introduction: The Complex Nature of Packet Loss Issues Network packet loss on Linux servers is one of the tricky problems that operations engineers often encounter. It may manifest as slow application responses, intermittent service interruptions, or degraded user experiences. Unlike systems like Windows, Linux, with its robust network stack and rich diagnostic tools, can achieve … Read more
Summary of Practical Backup Strategies for Linux System Operations
Establishing Summer The following is a practical summary of backups for virtual machines, physical machines, operating systems, applications, files, and databases. It summarizes various dimensions including backup types, technical methods, tool selection, precautions, and recovery strategies, suitable for enterprise-level system maintenance and disaster recovery. 1 Multidimensional Summary of Backup-Related Content 1. Overview of Backups 2. … Read more
Understanding iptables in Linux
Click the blue text above to follow me! OverviewTechnically speaking, iptables is not a firewall; the real firewall is netfilter, which runs in the system kernel. iptables is merely a representative of netfilter, primarily functioning to interact with users, obtaining their requests and converting them into information that netfilter can accept.iptables mainly operates at the … Read more
RedHat Linux 7.6 Installation Guide
RedHat Linux 7.6 Installation Guide This installation example is performed on a virtual machine. Virtual Machine System Information Virtual Machine Software: VMware® Workstation 16 Pro Version: 16.0.0 build-16894299 1.System Image Version rhel-server-7.6-x86_64-dvd.iso 1.Installation Process (The installation process based on the virtual machine has the same prerequisites) Select the first option to install the system directly. … Read more
Sharing the Linux prlimit Command
Feeling unwell, I initially thought of skipping this update. However, I happened to meet a security guard who was fiddling with his vegetable pot. After chatting for a while and seeing him remove some plants he deemed worthless, I took one to plant on the third-floor flower bed. Even if it only lasts three seasons, … Read more