DevOps & Cloud
Risk: Medium

Port 9000 β€” SonarQube / PHP-FPM / MinIO S3 API

Port 9000 is widely used by SonarQube code quality servers, PHP-FPM FastCGI listeners, MinIO Object Storage S3 APIs, and Portainer Docker management.

PORT NUMBER

9000

PROTOCOL

TCP

DEFAULT PROCESS

java (sonarqube), php-fpm, minio

FIREWALL TARGET

9000/tcp

Instant Terminal Fixes for Port 9000

macOS & Linux Terminal
1. Check who is listening on port 9000:
sudo lsof -i :9000 || sudo ss -tulpn | grep ":9000 "
2. Kill process occupying port 9000 (EADDRINUSE fix):
kill -9 $(lsof -t -i:9000)
3. UFW Firewall Allow rule:
sudo ufw allow 9000/tcp
Windows PowerShell (Admin)
1. Check listening port:
Get-NetTCPConnection -LocalPort 9000
2. Force kill process on port 9000:
Stop-Process -Id (Get-NetTCPConnection -LocalPort 9000).OwningProcess -Force
3. Docker Port Forwarding Mapping:
docker run -d -p 9000:9000 sonarqube:lts-community

Common Error Encountered

SonarQube server startup failed: Port 9000 is occupied.

Security Advisory & Hardening

Ensure the default administrator password is changed immediately upon initial SonarQube setup.

Frequently Asked Questions

Port 9000 Questions & Answers

Common questions regarding default services, kill commands, and firewall configurations.

Port 9000 is commonly used for SonarQube / PHP-FPM / MinIO S3 API. Port 9000 is widely used by SonarQube code quality servers, PHP-FPM FastCGI listeners, MinIO Object Storage S3 APIs, and Portainer Docker management.