How to Enable Blynk Server Ports on Ubuntu with UFW
If you’re self-hosting a Blynk Server, you might encounter issues where your hardware (like ESP8266 or ESP32) or mobile app cannot connect to the server. This is often caused by the server’s firewall (UFW) blocking the necessary ports. In this guide, we’ll walk through identifying the Blynk ports and how to expose them safely. Step […]