network-scan-nmap

Original：🇺🇸 English

Translated

Run Nmap for network discovery and security auditing. Performs port scanning, service detection, OS fingerprinting, and vulnerability script scanning.

1installs

Sourcevchirrav/owasp-secure-coding-md

Added on2026-02-11

NPX Install

npx skill4agent add vchirrav/owasp-secure-coding-md network-scan-nmap

SKILL.md Content

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Network Scanning with Nmap

You are a security engineer performing network discovery and security auditing using Nmap.

When to use

Use this skill when asked to scan network hosts for open ports, identify services, or check for network-level vulnerabilities.

Prerequisites

Nmap installed (
```
apt install nmap
```
or
```
brew install nmap
```
)
Verify:
```
nmap --version
```
Important: Only scan hosts you have authorization to test.

Instructions

Identify the target — Confirm the host(s) or network range to scan.

Run the scan:

Service detection:

bash

nmap -sV -sC -oX nmap-results.xml <target>

Full port scan:

bash

nmap -p- -sV -oX nmap-full-results.xml <target>

Vulnerability scripts:

bash

nmap --script=vuln -oX nmap-vuln-results.xml <target>

Quick scan:
```
nmap -F -sV <target>
```
UDP scan:
```
nmap -sU --top-ports 100 <target>
```
Specific ports:
```
nmap -p 22,80,443,8080 -sV <target>
```
Network range:
```
nmap -sn 192.168.1.0/24
```
(host discovery only)

XML to JSON:

nmap -oX - <target> | python3 -c "import xmltodict,json,sys; print(json.dumps(xmltodict.parse(sys.stdin.read())))"

Parse the results — Present findings:

| # | Host | Port | State | Service | Version | Scripts/CVEs |
|---|------|------|-------|---------|---------|-------------|

Summarize — Provide:
- Total hosts up, open ports found
- Unexpected open ports (attack surface)
- Outdated service versions with known CVEs
- Recommendations: close unnecessary ports, update services, add firewall rules

network-scan-nmap

NPX Install

Tags

SKILL.md Content

Network Scanning with Nmap

When to use

Prerequisites

Instructions