A Minisforum N100 used as a DNS server becomes unresponsive after ~1+ day uptime with system-wide stutter and suspected storage drop. This is a troubleshooting template with evidence-driven workflow.

Daily Debugging: Minisforum N100 Random Disk Drop / System Freeze (DNS, 1+ Day Uptime)

A classic multi-VLAN connectivity incident: ICMP times out while the target clearly replies locally. The real causes are asymmetric routing from a wrong PVE default gateway and an OpenWrt misconfiguration that enables SNAT (masquerade) on the LAN zone. Fixed with hop-by-hop captures and minimal config changes.

Daily Debugging: PVE Cross-VLAN Ping Fails (Wrong Default Gateway + OpenWrt LAN NAT)

A comprehensive guide on how individuals can effectively and properly use Claude AI assistant

How to Properly Use Claude as an Individual

AI has been moving at a breakneck pace. Many people are getting hooked on barking orders at AI and then discovering piles of error‑ridden code it produced (and in truth, you may not fully understand the code the AI wrote either).

AI Is Coming, Can You Really Code?

Recently took over a new system, but it's such a black box. So I did some things~

Performance Optimization of Legacy Systems

Taking advantage of the May Day holiday to thoroughly analyze one of the most famous papers: 'MapReduce: Simplified Data Processing on Large Clusters'...

Google MapReduce: Simplified Data Processing on Large Clusters

Recent scenarios have sparked deep thinking, leading to this article. In high-concurrency API management scenarios, gateway architecture must adhere to the following core design principles...

Gateway Architecture Design for High-Concurrency API Management Scenarios

Insights on API gateway patterns in microservices architecture inspired by industry practices...

Challenges in Microservices Architecture: The Redemption Path of API Gateway

As a middleware developer, we analyze gateway performance bottlenecks and optimization techniques from a computer system perspective. Gateways, as key components in microservices architecture, directly impact the response capability and scalability of the entire system...

Gateway Performance Bottleneck Analysis and Optimization Techniques (Private Collection)

After you basically understand what network card drivers, hardware interrupts, software interrupts, and ksoftirqd threads are, you can derive a basic packet reception path...

How the Kernel Receives Network Packets

Using scripts to upload large Git repositories

Shell Script for Pushing Large Git Repositories

This article focuses on practical implementation with a brief introduction to the underlying principles.

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