The Basics of Operating Alpine Linux

Light as a blade, controlling with precision In the previous article (“The Basics of Operating Alpine Linux (2): Installing a ‘Toy’”), we completed the installation of Alpine Linux, creating a minimal experimental environment. Today, we will delve deeper into this “small yet beautiful” world and explore its significant differences from the traditional RHEL series. If … Read more

OpenWrt Security Hardening Guide (Part 1): Securing Remote Access

OpenWrt Security Hardening Guide (Part 1): Securing Remote Access

Many friends have probably experienced OpenWrt, right? Have you felt its powerful and outrageous features due to its open-source and customizable nature while building your own “super router”? However, with the freedom that open-source brings, users also need to take on more security responsibilities. In this series, we will discuss the security hardening of OpenWrt, … Read more

Tutorial for Setting Up an FTP Server on CentOS 7

Tutorial for Setting Up an FTP Server on CentOS 7

To set up an FTP server on CentOS 7, it is recommended to use vsftpd. Below are the detailed steps: Step 1: Install vsftpd sudo yum install vsftpd -y Step 2: Start the service and set it to start on boot sudo systemctl start vsftpd sudo systemctl enable vsftpd Step 3: Configure the firewall # … Read more

Practical Guide to High-Risk Port Control Strategies and Firewall Configuration in Linux

Practical Guide to High-Risk Port Control Strategies and Firewall Configuration in Linux

In today’s rapidly accelerating digital transformation, the Linux operating system, as the mainstream OS for servers and edge computing devices, directly impacts the protection of enterprise data assets and user privacy. This guide will present a practical security hardening solution from the core dimensions of security reinforcement, combined with code examples, focusing on two key … Read more