How do I kill the process using port 28017?

On macOS & Linux, run: "sudo systemctl stop mongod". On Windows PowerShell (as Admin), run: "Stop-Service MongoDB -Force".

Why am I getting "port 28017 already in use" (EADDRINUSE)?

This occurs when another background instance of mongod or a zombie process is already bound to port 28017. Use the kill commands above to free the port immediately.

Database

Risk: Critical

Port 28017 — MongoDB HTTP Web Admin Interface

Q: Is Port 28017 safe to expose to the public internet?

Risk level is Critical. Legacy MongoDB HTTP console on port 28017 leaked database names, collections, and server statistics. Deprecated and disabled in modern MongoDB versions.

Port 28017 was the legacy HTTP status and web diagnostic interface for MongoDB database instances (offset 1000 from port 27017).

PORT NUMBER

28017

PROTOCOL

TCP

DEFAULT PROCESS

mongod

FIREWALL TARGET

28017/tcp

Instant Terminal Fixes for Port 28017

macOS & Linux Terminal

1. Check who is listening on port 28017:

sudo lsof -i :28017 || sudo ss -tulpn | grep ":28017 "

2. Kill process occupying port 28017 (EADDRINUSE fix):

sudo systemctl stop mongod

3. UFW Firewall Allow rule:

sudo ufw deny 28017/tcp

Windows PowerShell (Admin)

1. Check listening port:

Get-NetTCPConnection -LocalPort 28017

2. Force kill process on port 28017:

Stop-Service MongoDB -Force

3. Docker Port Forwarding Mapping:

# Deprecated; use MongoDB Compass or modern admin panels instead

Common Error Encountered

HTTP 403 / REST interface is disabled on port 28017.

Security Advisory & Hardening

Legacy MongoDB HTTP console on port 28017 leaked database names, collections, and server statistics. Deprecated and disabled in modern MongoDB versions.

Frequently Asked Questions

Port 28017 Questions & Answers

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

Port 28017 is commonly used for MongoDB HTTP Web Admin Interface. Port 28017 was the legacy HTTP status and web diagnostic interface for MongoDB database instances (offset 1000 from port 27017).

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