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Complete Guide to Windows Virtual Memory: From Principles to Practice, Fix Low Memory Lag Issues
Have you often encountered sudden lag on your Windows PC, received “low memory” warnings when opening multiple tasks, or watched the progress bar stall endlessly when running large software like Photoshop or Premiere Pro? Many times, this isn’t because your physical memory (RAM) is completely insufficient, but because your virtual memory configuration hasn’t kept up...
Complete Guide to MySQL Backup: mysqldump Syntax, Advanced Tips & Restoration Practice
For backend developers, database administrators (DBAs), and DevOps engineers, MySQL data backup is a core component of ensuring business continuity. Whether addressing server failures, human errors, or data migration needs, a reliable backup strategy prevents catastrophic data loss. As a built-in command-line backup tool for MySQL, mysqldump stands out as the top choice for small to medium-sized database backups...
Cloudflare Custom Domain Email Tutorial: 3 Steps to Build a Professional Brand Email (with DNS Setup)
Zero-cost Cloudflare Custom Domain Email Tutorial: Build professional brand emails like [email protected] in 3 steps. Includes DNS setup guide, takes 10 mins for beginners, boosts trust for indie sites, blogs & SaaS products. When running an independent website, personal blog, or SaaS product, are you still using personal email accounts like Gmail or Outlook for...
A Deep Dive into Gorm: Architecture, Workflow, Tips, and Troubleshooting for Go’s ORM Framework
This article details the internal architecture and SQL execution workflow of Gorm, the popular ORM framework for Go. It shares practical techniques for model definition, querying, and updating, while solving common issues like time zone discrepancies, soft deletion, and transactions. It is tailored for advanced Gorm developers. As the most widely used ORM (Object-Relational Mapping) framework...
LangGraph Tutorial: Build an Enterprise-Grade Multi-Agent Intelligent Contract Review & Risk Analysis System (With HITL & Short/Long-Term Memory)
In enterprise operations, contract review is a core risk control process—but traditional manual review has long been plagued by three critical pain points: inefficiency (a complex contract can take hours or even days to review), risk omission (reliance on reviewer experience leads to missed hidden compliance issues), and lack of personalization (failure to adapt to...
Practical Guide to Dynamic IP Blocking in Nginx
Blocking IPs dynamically in Nginx can effectively protect websites or applications from malicious requests, crawlers, or DDoS attacks. Compared to the traditional static method of modifying the configuration file and reloading Nginx, dynamic IP blocking can automatically identify and block malicious IPs in real-time, greatly enhancing security and operational efficiency. This article will elaborate on...
NGINX Technical Practice: Configuration Guide for TCP Layer 4 Port Proxy and mTLS Mutual Encryption Authentication
This article systematically breaks down the complete implementation of Nginx TCP Layer 4 port proxy and mTLS mutual encryption authentication. It covers core technical principles (TLS/mTLS mechanisms), certificate generation (root CA/server/client workflows), Nginx configuration (Stream module, SSL parameter optimization), and function verification (valid/invalid connection testing) with practical commands. It helps DevOps engineers and developers quickly...
DDU (Display Driver Uninstaller) | Complete Guide + Safe Usage Tutorial & FAQ
How to fully remove NVIDIA/AMD/Intel GPU driver leftovers with DDU? This guide covers Safe Mode setup, driver conflict fixes, and use cases like GPU upgrades or failed installations—plus pro tips to avoid issues. As a tech engineer specializing in PC hardware maintenance for years, I’ve seen countless odd problems caused by leftover drivers: game crashes,...