Redis Cache

Localhost 6379 Down?

Port 6379 is the default for Redis. If you get a connection refused error, your cache server isn't running.

Ping Redis
Kill Port 6379
npx kill-port 6379

Troubleshooting Redis Connections

If you see Error: connect ECONNREFUSED 127.0.0.1:6379, your application cannot reach Redis.

1. Ping the Server

Use the CLI to check if it's alive. It should reply with PONG.

redis-cli ping

2. Start Redis Server

If the ping failed, start it manually.

redis-server

Developer Port Reference Guide

Frontend & Web
3000 React / Node / Default 3001 React Secondary 5173 Vite / Vue 3 4200 Angular CLI 8000 Django / Gatsby 8080 Tomcat / Vue / Spring 8081 React Native 80 HTTP Standard 443 HTTPS / SSL
Backend & Infrastructure
5000 Flask / AirPlay 4000 Jekyll / Hexo 9000 SonarQube / PHP
Database & Cache
3306 MySQL 5432 PostgreSQL 27017 MongoDB 6379 Redis 11211 Memcached
DevOps & Data Science
8888 Jupyter Notebook 9200 Elasticsearch 9090 Prometheus 15672 RabbitMQ UI 8500 Consul 127.0.0.1 Loopback IP