22
SSH/SFTP
Secure Shell / Secure File Transfer
TCP
File Transfer
Port Information
Port Number
22
Protocol
TCP
Category
File Transfer
Common Usage
URL with Port
http://localhost:22 https://example.com:22
Node.js/Express Server
const express = require('express');
const app = express();
const PORT = 22;
app.listen(PORT, () => {
console.log(`Server running on port ${PORT}`);
});Docker Port Mapping
docker run -p 22:22 myapp # In docker-compose.yml ports: - "22:22"
Firewall Configuration
# Linux/Ubuntu firewall sudo ufw allow 22/tcp # Check if port is in use netstat -an | grep 22
Port 22 - SSH/SFTP
Secure Shell / Secure File Transfer This is a TCP port commonly used in file transfer 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.