How to Set Up and Test PayPal Webhook Locally
Learn how to set up and test PayPal webhooks locally using Pinggy. Step-by-step guide for creating a webhook listener, configuring PayPal sandbox, and testing webhook events.
Tunnels, networking, self-hosted LLMs, and AI news
Hands-on guides, protocol deep dives, and field notes on tunnels, SSH, reverse proxies, self-hosting, self-hosted LLMs, and AI - from the people building Pinggy.
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Top 10 AI Models for Scientific Research and Writing in 2026
Discover the best AI models with deep research capabilities for scientific research and writing. Compare ChatGPT, Gemini, Perplexity, Claude, Elicit, and more to accelerate your academic workflow.
Self-Hosting Text-to-Speech AI for Free on Google Colab
Learn how to build and host a complete text-to-speech AI application on Google Colab with free GPU access. Use Kokoro TTS for high-quality voice synthesis and Pinggy for public access - no server costs required.
How IPv6 Solves the NAT Problem
Discover how IPv6's massive address space eliminates the need for NAT, restoring true end-to-end connectivity. Learn the technical differences between IPv4 and IPv6, why NAT was necessary, and how IPv6 enables direct peer-to-peer communication for gaming, VoIP, IoT, and more.
Understanding Content-Length Header and Chunked Transfer Encoding
A complete guide to HTTP Content-Length header and chunked transfer encoding. Learn how servers communicate response size, when to use each approach, and practical implementation examples for developers.
Why are X-Forwarded-For and Forwarded Headers Useful?
Learn how X-Forwarded-For and Forwarded HTTP headers help preserve client IP addresses through proxies and load balancers. Understand their use cases for logging, security, rate limiting, and geolocation.
How does NAT traversal work?
Learn how NAT traversal enables peer-to-peer connectivity through firewalls and routers. Understand STUN, TURN, ICE protocols, hole punching techniques, and practical implementation strategies.
Best AI Tools to Automate Blogs and Content Writing in 2026
Discover the best AI tools for automating blog writing and content creation in 2026. Compare ChatGPT, Claude, Jasper AI, Copy.ai, and more to streamline your content workflow.
Top 5 Best Self-Hosted VPNs in 2026
Discover the best self-hosted VPN solutions in 2026. Compare WireGuard, AmneziaVPN, Headscale, NetBird, and WG-Easy for privacy, security, and performance.
How Cloudflare Incident Affected 2.4 Billion Internet Users
Deep dive into the November 18, 2025 Cloudflare outage that disrupted 2.4 billion users across ChatGPT, X, Spotify, Canva, and more. Technical breakdown of the Bot Management bug, financial impact analysis, and lessons learned from one of the internet's worst outages since 2019.