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Cover image for Why JWT isn't enough to
Why JWT isn't enough to secure your app When I first started building authentication systems, I thought: "If I'm using JWT, my app is secure." I was wrong. JWT solves authentication—it tells your server who the user is. It doesn't automatically solve: Authorization (What is the user allowed to do?) Token theft Token revocation after logout XSS or CSRF attacks Rate limiting Input validation Secure storage of tokens A secure application is built with layers, not a single technology. Here's what I consider a solid authentication stack: Short-lived access tokens Refresh token rotation HttpOnly & Secure cookies Role-Based Access Control (RBAC) Input validation and sanitization Rate limiting Security headers Continuous logging and monitoring One lesson I've learned: Security isn't something you add after your app works. It's something you design into every feature from the beginning. JWT is one piece of the puzzle—not the whole picture. What's one security practice you think every full-stack developer should implement by default?
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Cover image for This internal tool supports NOC teams during massive network...
This internal tool supports NOC teams during massive network outage scenarios, where large volumes of alarms are generated simultaneously. It allows operators to paste and process raw alarm data, organizing it into structured tables by technology (UMTS / LTE) and key operational attributes. Once processed, the information can be filtered and grouped to identify impacted zones and affected areas, transforming fragmented alarms into a clear operational view of the incident scope. Based on this consolidated view, the tool enables the generation of concise, standardized notification messages, ensuring timely and consistent communication with critical operational areas. The objective is to reduce analysis time, minimize manual consolidation effort, and improve coordination and situational awareness during high-impact network events.
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Cover image for Production VPS infrastructure designed, configured
Production VPS infrastructure designed, configured and automated for web applications, APIs and e-commerce services. I configured Linux-based server environments with Nginx reverse proxy, HTTPS/SSL, Python/FastAPI services, process management, logging, health checks and automated operational workflows. The work includes deployment of multiple web services, subdomain routing, secure HTTPS configuration, service monitoring and automation designed to keep applications reliable and maintainable. Key areas • Linux VPS setup and configuration • Nginx reverse proxy and routing • SSL / HTTPS configuration • Python & FastAPI services • Background services and process management • Health checks and monitoring • Logs and diagnostics • Deployment and server automation • E-commerce backend integrations Infrastructure developed and managed by NEXACORE TECH DI LECA.
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