Consul UI

Localhost 8500 Refused?

Port 8500 hosts the HashiCorp Consul UI. If it's not loading, the agent might not be running in server mode.

Go to http://localhost:8500 →
Kill Port 8500
npx kill-port 8500

Running Consul Locally

Consul needs to be started with the -ui flag to expose port 8500 via HTTP.

1. Start Dev Agent

The easiest way to debug is running in development mode:

consul agent -dev -ui

2. Check Members

Verify if the agent is actually up:

consul members

Developer Port Reference Guide

Frontend & Web
3000 React / Node / Default 3001 React Secondary
Backend & Infrastructure
5000 Flask / AirPlay 4000 Jekyll / Hexo
Database & Cache
3306 MySQL 5432 PostgreSQL
DevOps & Data Science
8888 Jupyter Notebook 9200 Elasticsearch 9090 Prometheus 15672 RabbitMQ UI 8500 Consul 127.0.0.1 Loopback IP