PORT 9092 / TCPInfrastructure & CloudExposure Risk: High

Port 9092: Apache Kafka / Redpanda — Apache Kafka & Redpanda Event Streaming Broker

Standard PLAINTEXT/SASL client connection port for Apache Kafka and Redpanda event streaming brokers.

Default Service

Apache Kafka / Redpanda

Process: java (kafka) / redpanda

Transport Protocol

TCP

IANA Registered Port 9092

Docker Port Flag

-p 9092:9092

Container to Host Mapping

How to Check & Kill Process on Port 9092 (EADDRINUSE Fix)

macOS & Linux (lsof / kill)

# Find process using port 9092
sudo lsof -i :9092

# Instantly kill process on port 9092
lsof -ti:9092 | xargs kill -9

Windows (PowerShell & CMD)

# Find PID listening on port 9092
netstat -ano | findstr :9092

# Force kill by PID
taskkill /PID <PID_NUMBER> /F

Cross-Platform Node.js One-Liner

# Kill port 9092 via npx
npx kill-port 9092

# Or diagnose via Castov CLI
npx castov fix "EADDRINUSE :::9092"

Linux Firewall (UFW) & Connectivity Test

# Test if port 9092 is reachable
nc -zv localhost 9092

# Allow or deny port 9092 in UFW
sudo ufw allow 9092/tcp

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Frequently Asked Questions about Port 9092

What is Port 9092 used for?

Port 9092 is the standard network port for Apache Kafka / Redpanda (Apache Kafka & Redpanda Event Streaming Broker) operating over TCP. The typical system daemon or process is java (kafka) / redpanda.

How do I kill a process running on Port 9092 (EADDRINUSE)?

On macOS and Linux, run: lsof -ti:9092 | xargs kill -9 (or npx kill-port 9092). On Windows PowerShell/CMD, run: netstat -ano | findstr :9092 and then taskkill /PID <PID> /F.