Why your secure ports (22, 443, 993) are reporting as closed

AI Strategy umais20@yahoo.com • January 04, 2026
Localhost Audit Analysis

Scanning the Mirror: Why your secure ports (22, 443, 993) are reporting as closed.

Analysis of 127.0.0.1 (Localhost)

Scanning localhost is a scan of your own internal loopback interface. Because the ports are Closed, your computer is actively telling Nmap: "I hear you, but I am not running any server software right now."

Service-by-Service Breakdown

  • Port 22 (SSH): Closed
    You do not have an SSH server (like OpenSSH) running. You can connect out to other servers, but no one can SSH into your machine.
  • Port 443 (HTTPS): Closed
    Your machine is not acting as a web server. Even though you browse the web (which uses 443), you aren't hosting a secure website locally.
  • Port 636/993/995: Closed
    Common for personal PCs. These are for directory services and secure email hosting, which typically only run on servers.

The "Kubernetes" Clue

Your scan report contains a very specific detail:

rDNS record for 127.0.0.1: kubernetes.docker.internal

This tells us you have **Docker Desktop** or a **Kubernetes** environment installed. These tools often open high-numbered ports (like 6443 or 8080) rather than the standard low-numbered ports (22, 443).

The Guru's Challenge

To see an "Open" port for your blog screenshots, try scanning your router (usually 192.168.1.1 or 10.0.0.1). You will likely see port 80 or 443 as OPEN because it hosts the web-based configuration page.

Pro Tip: Try nmap -p- localhost to see if Docker has opened any unusual high-number ports!

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