3128
Squid
Squid proxy server
TCP
Proxy
Port Information
Port Number
3128
Protocol
TCP
Category
Proxy
Common Usage
URL with Port
http://localhost:3128 https://example.com:3128
Node.js/Express Server
const express = require('express');
const app = express();
const PORT = 3128;
app.listen(PORT, () => {
console.log(`Server running on port ${PORT}`);
});Docker Port Mapping
docker run -p 3128:3128 myapp # In docker-compose.yml ports: - "3128:3128"
Firewall Configuration
# Linux/Ubuntu firewall sudo ufw allow 3128/tcp # Check if port is in use netstat -an | grep 3128
Port 3128 - Squid
Squid proxy server This is a TCP port commonly used in proxy applications. Port numbers range from 0-65535, with ports 0-1023 being well-known system ports, 1024-49151 being registered ports, and 49152-65535 being dynamic/private ports.