Dev Resource Hub | Page 6 of 15 | High-Quality Resources on Development, AI, Cybersecurity & Embedded Systems

In penetration testing, XXL-Job vulnerabilities are often highlighted for their convenience in direct reverse shell attacks. However, real-world scenarios frequently involve “non-outbound networks” or “missing scheduler panels,” which pose greater challenges. This article breaks down the version detection, command execution, and multiple memory shell injection methods for the XXL-Job Executor default token vulnerability, using practical…

This article will start with the working principles of MCP, take the STDIO transmission mode as an example, and provide a comprehensive walkthrough of building a local MCP service, testing it, and integrating it with an LLM (using Cursor as an example), helping developers quickly master the practical application of the MCP protocol. We’ve already…

In the fast-paced world of AI development, building applications based on Large Language Models (LLMs) has become an industry focus. However, before the advent of MCP (Model Context Protocol), developers faced a host of tricky challenges when building LLM applications. These issues not only slowed down development efficiency but also limited the practical implementation of…

This article provides a comprehensive breakdown of the Kalman Filter algorithm, covering everything from its core concepts to practical applications, and serves as a complete reference for both engineering development and theoretical learning. It first clarifies the recursive nature of the Kalman Filter—centered on the “fusion of prediction and observation”—then analyzes its key advantages in…

A complete guide to integrating Google OAuth login with Next.js + NextAuth.js. Learn step-by-step Google Cloud Console setup, fix common errors like redirect_uri_mismatch and access_denied, and avoid deployment pitfalls on Vercel. Essential for developers building one-click Google login. Recently, I integrated Google OAuth login functionality into a project and encountered numerous pitfalls from configuration to deployment. I’ve organized…

Tired of users spamming buttons and causing duplicate submissions—like 5 identical orders cluttering your database or 2 AM emergency rollbacks? This guide breaks down how to build a full anti-duplicate system with Spring Boot, from simple local locks for single servers to Redis distributed locks for clusters. Packed with practical code snippets, pitfall warnings, and…