fscan-port-scan

Scan multiple hosts for open ports and services using fscan.

Updated May 7, 2026
One-click install
npx skills add https://github.com/gongzeq/VAPT3 --skill fscan-port-scan
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fscan-port-scan
Source: https://github.com/gongzeq/VAPT3/tree/main/secbot/skills/fscan-port-scan
Command: npx skills add https://github.com/gongzeq/VAPT3 --skill fscan-port-scan

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill accelerates security assessments by performing multi-host port and service scanning across large networks using the fscan tool, reducing manual enumeration time.

Core Features & Use Cases

  • Concurrent multi-host scanning delivers rapid visibility of open ports across subnet ranges.
  • Structured results provide a services list and CMDB-ready writes for asset management.
  • Validation & safety enforces target and ports formats, with a timeout and fallback behavior for missing binaries.

Quick Start

Invoke the skill with a target range and a port specification to discover open services.

Frequently Asked Questions about fscan-port-scan

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I scan multiple subnets for open ports quickly?

You can perform multi-host port scanning across large networks using concurrent scans on target subnet ranges. The process parses results into a structured services list, providing rapid visibility of open ports for security assessments and network inventory.

Can I scan a specific range of ports across multiple hosts?

Yes, you can invoke the scan with a defined target range and port specification to discover open services across multiple hosts. Input validation enforces correct target and port formats before executing the concurrent subnet scanning.

What is the best way to automate network inventory for large subnets?

Concurrent multi-host port scanning is ideal for network inventory, rapidly identifying open ports across subnet ranges. It outputs structured services lists and writes CMDB entries, ensuring asset management data remains current and validated.

Does fscan port scanning require any dependencies to run?

No external dependencies are required to run the skill, but it relies on the fscan binary internally. If the binary is missing, the tool applies fallback behavior while validating inputs and enforcing timeouts during multi-host scanning.

Are there timeout limitations when scanning large networks?

Timeouts are strictly enforced to prevent indefinite scans across large networks. If the required fscan binary is missing, fallback behavior activates, and input validation ensures only correctly formatted targets and ports are processed.