Network Configuration

Detailed Guide to Customizing OpenWrt Firmware: Modifying Default Parameters and Adding Applications

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Detailed Guide to Customizing OpenWrt Firmware: Modifying Default Parameters and Adding Applications

• This article uses the friendlywrt22-rk3568 distribution as an example to explain how to customize an OpenWrt firmware. The customization features include modifying network parameters, login passwords, boot interface (banner), proxy ARP, opkg sources, hostname, default application configuration parameters, adding arbitrary files (not limited to applications and their libraries), etc. Finally, a complete practical example … Read more

Enabling Anonymous Users to Write to SMB Network Shared Files in OpenWRT

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Enabling Anonymous Users to Write to SMB Network Shared Files in OpenWRT

Introduction There are many methods available online, most of which involve editing the template by commenting out the line before invalid users = root. This allows the root user to manage the SMB user group. However, since the official default does not allow the use of root, there must be other ways. Today, I will … Read more

DNS Forwarding with OpenWrt

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DNS Forwarding with OpenWrt

DNS Forwarding with OpenWrtIn network usage, we sometimes need to specify that certain domain names use a specific DNS server while ensuring that the resolution of other domain names is unaffected.Currently, I am using this setup in an internal corporate network where an Active Directory (AD) domain controller has been established. All domain members perform … Read more

Omron EtherCAT: High-Speed Fieldbus for Synchronous Control Systems

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Omron EtherCAT: High-Speed Fieldbus for Synchronous Control Systems

Omron EtherCAT: Sharing on High-Speed Fieldbus for Synchronous Control Systems Introduction: Starting from My Experience Hello everyone! I am an engineer with many years of experience in industrial automation, primarily working with industrial fieldbus, motion control, and equipment debugging. In past projects, I have frequently encountered EtherCAT, especially in applications involving high-precision synchronous control systems. … Read more

Connecting to Aliyun MQTT via LAN and WAN: ESP8266 Debugging Steps

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Connecting to Aliyun MQTT via LAN and WAN: ESP8266 Debugging Steps

4.1 LAN Debugging Hardware Preparation: ESP8266-01S module and ESP debugger Use your phone to create a 2.4G Wi-Fi hotspot (5G is not allowed); Connect your computer to the phone’s Wi-Fi hotspot, and also connect the ESP8266 to the Wi-Fi hotspot; Send the command AT+CIFSR to the ESP8266 to query its IP address, which should return … Read more

Detailed Explanation of Linux Network Card Parameters: Understanding ‘ip a’ Output with Real Cases!

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Detailed Explanation of Linux Network Card Parameters: Understanding 'ip a' Output with Real Cases!

🔥 When you see the output of <span><span>ip a</span></span>, are you confused by the mysterious parameters like <span><span>LOOPBACK</span></span>, <span><span>fq_codel</span></span>, and <span><span>metric 100</span></span>? 🔥 This article uses real terminal output examples to analyze the meaning of each parameter line by line and reveals how to diagnose network issues using them!🚀 At the end of the article, … Read more

Detailed Explanation of Ubuntu Netplan in Linux IP

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Detailed Explanation of Ubuntu Netplan in Linux IP

Detailed Explanation of Ubuntu Netplan 1. Overview Netplan is a new network configuration tool introduced in Ubuntu starting from version 17.10, designed to simplify and unify the network configuration process. It defines network interface settings through YAML configuration files and supports <span>NetworkManager</span> and <span>systemd-networkd</span> as backends. Advantages Readable and writable YAML format. Unified configuration method. … Read more

Detailed Explanation of the RedHat nmcli Tool in Linux IP

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Detailed Explanation of the RedHat nmcli Tool in Linux IP

RedHat <strong><span>nmcli</span></strong> Tool Overview 1. Overview <span>nmcli</span> is a command-line interface tool provided by NetworkManager for managing network connections in Linux systems. It supports configuration, management, monitoring, and debugging of network devices and connections. For Red Hat-based distributions (such as RHEL, CentOS, etc.), <span>nmcli</span> is the standard network management tool. 2. Installation and Version Check … Read more

Enabling HTTP/HTTPS Management Access and Ping Function on Huawei USG6331E via Command Line

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Enabling HTTP/HTTPS Management Access and Ping Function on Huawei USG6331E via Command Line

The following is the method to enable HTTPS management access on the Huawei USG6331E via the command line: 1. Enter system view: In user view, input the command system-view to enter system view. 2. Enter management interface view: Assuming Vlanif1 is used as the management interface, input the command interface Vlanif 1 to enter the … Read more

Router Login Settings for http://192.168.1.1

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Router Login Settings for http://192.168.1.1

Why can’t I access the router’s settings interface by entering http://www192.168.1.1.com in the browser?Why is it impossible to log in to the settings page at http://www192.168.1.1.com? Answer: It is a common issue that the router’s settings interface cannot be openedand cannot be logged into. The most direct error in the question above is that the … Read more