Memcached

Localhost 11211 Issues?

Port 11211 is the Memcached standard. It does not have a web UI, so the browser will show connection refused.

Test via Telnet
Kill Port 11211
npx kill-port 11211

Verifying Memcached

Since Memcached talks raw TCP, you can't check it with Chrome. Use Telnet instead.

1. Telnet Connection

Type `stats` after connecting to see server details.

telnet localhost 11211
stats

2. Start Daemon

Ensure the service runs in the background:

memcached -d

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