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aaWAF is a lightweight, open-source web application firewall suitable for personal blogs and small businesses. This tutorial explains how to deploy the free version on a Linux server, covering installation, adding a protected site, pointing DNS to the WAF, enabling SSL, and configuring defenses against SQL injection, XSS, CC attacks, and malicious bots.

A home-built rooftop solar array uses three 350 W panels (two monocrystalline, one polycrystalline) wired in parallel with an MPPT controller, grid-tied inverter, and lead-acid battery storage. The inverter outputs a fixed 400 W to offset the home network cabinet's load. Sunny days generate about 4 kWh daily; cloudy days about 2 kWh. No anti-backflow protection was installed due to wiring complexity.

This article presents a Kubernetes-based Rainyun Cloud Application (RCA) tutorial for deploying a PHP website, using Discuz! X3.5 and applicable to WordPress/Typecho. It covers project, database, and website creation, domain DNS CNAME setup, file upload and extraction, installation, cache updating, and HTTPS binding. RCA offers hourly billing, elastic scaling, self-healing, and a built-in app store.

An open-source USB-C dock integrates four 10Gbps USB-A ports, 2.5G Ethernet, and TF/SD readers using VL160, VL822, RTL8156BG, GL3224. It accepts 4-20V input, buck-boosts to 5.1V with up to 9.5A, supporting PD fast charging. Tests show USB read/write 969.65/912.65 MB/s, Ethernet 2089/2497 Mbps, card read 93.04 MB/s, efficiency up to 91.79%. Schematics, PCB files, and replication notes are provided.

This article presents a beginner-friendly guide to building a modern forum using Linux, Docker, 1Panel, and Flarum. It details steps from domain registration to server setup, Flarum installation, customization, extension installation, and enabling HTTPS. Readable for novices, it emphasizes Docker's role in rapid deployment without manual PHP configuration, and highlights Flarum's modern, mobile-friendly, extensible design.

An unboxing review covers Intel Ultra7 265K (8P+12E, 5.5GHz), Gigabyte Z890M AORUS ELITE WIFI7 motherboard, and Asgard DDR5 6400MHz 64GB memory, purchased for ¥3,499 and ¥1,489. The board offers WiFi7, USB4, 2.5G LAN, and three M.2 slots. Benchmarks: Cinebench R23 2256 single/35187 multi; Geekbench 6 3184/21833; memory read 97.5, write 131.4, copy 101.9 GB/s. Power draw: 100W idle, 300W CPU stress, 500W full system with RTX 3070.

The DOCKCASE DSWC1R-3S is a MagSafe-compatible M.2 SSD enclosure with dual USB-C ports, offering 10Gbps transfers and 100W PD pass-through charging. Its 1.54-inch LCD shows SSD health, speed, and temperature. Testing achieved ~980MB/s sequential reads, with effective heat dissipation. It enables direct iPhone 4K ProRes recording and concurrent device charging.

The iKuai IK-Q3000 is an AX3000 Wi-Fi 6 router (149 CNY) aimed at small offices and stores, supporting SD-WAN, multi-WAN, and flexible deployment modes. Performance tests showed 5GHz throughput of 964Mbps at 1m, 934Mbps through one wall, and 269Mbps through two walls; idle power consumption was about 3.5W. Teardown revealed an MT7981BA CPU, 512MB RAM, 128MB flash, and an MT7976CN RF chip with 3T3R for better coverage. This review offers practical data for evaluating the router’s speed, heat, hardware, and build quality.

The article shares a home network cabinet setup, listing hardware such as iKuai routers, 10G switches, a QNAP NAS, mini PC server, UPS, and multiple Wi-Fi access points. It describes wiring with Cat6a and fiber, plus an iKuai forum photo contest with prizes, offering readers equipment inspiration and contest participation details.

This article provides a beginner-friendly tutorial for building a personal blog website using Linux, Docker, 1Panel, and Halo. It explains domain registration, cloud server purchase (Hong Kong server avoids ICP filing), 1Panel and Docker installation, Halo deployment, theme/plugin customization, and HTTPS/SSL setup. No programming skills are required. The solution is containerized and open-source, supports HTTPS, and with a theme change can also serve as a corporate website.

The ACASIS TBU405Pro M1 Thunderbolt 4/3 M.2 enclosure paired with the WD SN7100 1TB SSD undergoes unboxing, teardown, and benchmarking. The dual-controller design (JHL7440 for Thunderbolt/USB4, RTL9210 for USB3) achieved sequential reads of 3164MB/s on a Mac mini via Thunderbolt and 974MB/s via USB 3.1. Notable features include a fan toggle, tool-free installation, and low thermals under load.

The article presents an open-source EG1164-based synchronous rectification boost converter module supporting 8–50V input, 8–60V adjustable output, and 219kHz switching. Test results show up to 97.3% efficiency and 287W output at 8A, with potential beyond 300W. It includes schematic, PCB layout, ripple measurements, and component purchasing guidance.

Using a Zhongchuang ET4410 LCR bridge, the author measured inductance, capacitance, Q/D, ESR, and reactance of various inductors and capacitors at 100Hz–100kHz. Iron-silicon-aluminum toroidal inductors showed peak Q at 10kHz; SMD inductors performed better at high frequency. Solid capacitors significantly outperformed electrolytics, with Rubycon best among electrolytics. Capacitance dropped after 10kHz for electrolytics, while monolithic capacitors had high low-frequency ESR/reactance. The article provides full data tables and a spreadsheet.

An open-source three-phase power meter for home energy monitoring uses three PZEM-004T modules with an ESP32-C3 running ESPHome, uploading voltage, current, power, power factor, and energy data to HomeAssistant over Wi-Fi. It measures 80–260V per phase, up to 100A, with 0.5% accuracy. Design files, firmware, and enclosure models are provided.

Migrating macOS to an external SSD on a 2024 Mac Mini avoids expensive Apple upgrades. The guide details formatting the drive as APFS with GUID Partition Map, creating a separate data volume, downloading macOS Sequoia, installing to the external drive, and using Migration Assistant to preserve apps and data. Internal macOS remains intact, allowing flexible startup disk switching.