Port Scan (nmap)

Classic nmap recon: discover open TCP ports and risky services (SSH, RDP, MySQL, Redis, Mongo…).

What it’s for

See what the internet can actually reach on your server — the same first step Linux admins take with nmap when hardening a box.

How it works

We resolve the public host (private IPs blocked), then run nmap (-Pn -sT --open) with a profile: top 100 ports, web-focused, database-focused, or top 1000. Each open port gets a risk note.

What you get

List of open ports/services, severity for dangerous ones (RDP, SMB, Redis, DB…), and firewall guidance.

We look at

Top ports
Web ports
DB / cache ports
RDP / SMB / Telnet

How to use

1 Enter a domain or IP you are allowed to scan.
2 Pick a profile (default: top 100 ports).
3 Close or firewall anything that should not be public.

Run check

Host or URL

Use the domain only, e.g. example.com

Scan profile

I own this target or have explicit permission to scan it. Unauthorized scanning may be illegal.

This check runs in the background. We’ll open the report page and refresh it automatically.