Detailed Operation Manual for Building a KVM Virtualization Platform on CentOS 8

Detailed Operation Manual for Building a KVM Virtualization Platform on CentOS 8

1. Environment Preparation 1. Hardware Check bash egrep -c ‘(vmx|svm)’ /proc/cpuinfo # Return value>0 indicates support for virtualization lsmod | grep kvm # Check KVM module 2. System Update bash dnf update -y reboot 3. Install KVM Components bash dnf install -y qemu-kvm libvirt virt-install virt-viewer bridge-utils systemctl enable –now libvirtd 2. Network Configuration (Bridged … Read more

Configuring OpenWrt in One-Arm Router Mode

Configuring OpenWrt in One-Arm Router Mode

Total text: 888 words, 24 images,Estimated reading time: 1 minute Previously, we successfully deployed OpenWrt on an x86 ESXi server (Deploying OpenWrt on x86 servers), but we did not set a root password, which is very insecure. Let’s quickly set a password under “system” → “Administration”, with a minimum length requirement of 6 characters. System … Read more

Upgrading the Jiuxun K2 with OpenWRT: Expansion and Packet Capture

Upgrading the Jiuxun K2 with OpenWRT: Expansion and Packet Capture

Introduction: While organizing my room today, I discovered a long-forgotten Jiuxun K2. After my last major modification, it had been lying in the corner of my room. Seeing it again reminded me of some sad memories, so I decided to upgrade it. 1. Flashing OpenWRT Firmware Why choose OpenWRT? First, pre-packaged firmware from others can … Read more

OpenWrt Configuration Guide

OpenWrt Configuration Guide

OpenWrt Configuration Guide 1. Hardware and Software Router: Xiaomi Router R3G OS: OpenWrt 21.02.2 Chip: MT7621 SSH Client: MobaXterm Personal 12.4 Browser: Microsoft Edge OpenWrt Theme: Luci-theme-argon 2.2.9.4 (Theme package: Releases · jerrykuku/luci-theme-argon (github.com), Configuration GUI: Releases · jerrykuku/luci-app-argon-config (github.com)) 2. Network Configuration 1. Static Address Configuration for Interfaces WAN Port: The static address protocol … Read more

Lightweight DNS Server dnsmasq: How to Quickly Deploy Home Network Services?

Lightweight DNS Server dnsmasq: How to Quickly Deploy Home Network Services?

⬆ Click the blue text above to follow our public account Welcome to Qingping’s Literary World Let’s witness the growth of a one-person enterprise together Hello everyone, I am Qingping, a middle-aged boy born in the 90s who loves reading and writing, and understands products and technology. Today I want to share how to build … Read more

Zabbix Installation & Oracle Linux System Installation (with Links)

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

Siemens PLC Connection Issues with Computer: Frequent Disconnections

Siemens PLC Connection Issues with Computer: Frequent Disconnections

1. Problem Description When we connect the computer to the PLC and click online, the PLC connects normally to the computer. However, after about ten seconds, it automatically disconnects. This result occurs repeatedly, even after changing the network cable. 2. Solution Open the corresponding network port, set the IP address to obtain automatically, and confirm. … Read more

Modifying MAC Address on Embedded Linux Network Interface

Modifying MAC Address on Embedded Linux Network Interface

Hello everyone, I am the Intelligence Guy~ Modifying the MAC address is a common development requirement in network management and privacy protection. 1. Why Change the MAC Address? For example, when we replace a damaged network card, we need to restore the original MAC address to maintain IP allocation, firewall policies, and device authentication; there … Read more

Deploying OpenWrt Based on Docker

Deploying OpenWrt Based on Docker

The actual operating environment is based on Synology DSM 7.1-42661 Update 1 version system.Using its built-in Docker package (version 20.10.3-1306) for deployment. 2. SSH functionality needs to be enabled in the Synology system’s terminal. 3. Use SSH to log into the Synology system, then execute the following commands in sequence to prepare the network environment: … Read more

Advanced OpenWrt Techniques: iStoreOS Multi-VLAN Configuration and Inter-Device VLAN Communication Guide

Advanced OpenWrt Techniques: iStoreOS Multi-VLAN Configuration and Inter-Device VLAN Communication Guide

We previously introduced how to configure OpenWrt to operate in a one-armed routing mode (OpenWrt Configuration One-Armed Routing Mode), and later discussed iStoreOS based on OpenWrt (Deploying iStoreOS on VMware ESXi to Turn It into a Router), which we flashed onto the VMware Edge 620 (VMware Edge 620 Magic Operation: Flashing iStoreOS to Become a … Read more