Port Scanning Made Simple: Check What's Running on Your Server

You deployed a new service, updated firewall rules, or just want to verify your server configuration. Instead of SSHing in and running netstat, you can scan it from your phone with NetKit Pro's Port Scanner.

Scan profiles

The Port Scanner comes with built-in profiles so you don't have to remember port numbers:

Reading the results

Each port shows one of three statuses:

• Open (green) — The port is accepting connections. You'll also see the response time.
• Closed (red) — The port is reachable but nothing is listening.
• Filtered (orange) — A firewall is blocking the probe. No response at all.

The scanner also shows the well-known service name for each port (SSH, HTTP, SMTP, etc.) so you don't have to memorize port numbers.

Common use cases

Verify a deployment

Just deployed a web app? Scan with the Web profile to confirm ports 80 and 443 are open. If they're filtered, your firewall rules might need updating.

Check for accidental exposure

Scan with the Database profile to make sure your PostgreSQL (5432), MySQL (3306), or Redis (6379) ports aren't exposed to the internet. These should typically only be accessible from your application servers.

Troubleshoot connectivity

A service isn't responding? Scan its port to find out if the issue is:

• Port open but service slow — the application has a problem
• Port closed — the service isn't running
• Port filtered — a firewall is blocking access

Monitor your home network

Scan your router's IP to see what services are exposed. You might be surprised to find open ports you didn't expect.

Tips

• Scan results show total counts — Total, Open, Closed, and Filtered at the top for a quick overview
• Filter results — Tap "Open only" to hide closed and filtered ports
• Response times matter — High response times on open ports can indicate network issues or overloaded services

Get NetKit Pro

Port Scanner is part of NetKit Pro. €4.99, one-time purchase, no ads or tracking.