netcat

name	netcat
description	Use this skill when the user wants to debug network connections, scan ports, transfer files, or interact with TCP/UDP services from the command line.

Netcat Plugin

Netcat (nc) reads and writes data across network connections using TCP or UDP. A swiss-army knife for network debugging.

Commands

• netcat _ _ <args> — Passthrough

Usage Examples

• "check if port 80 is open on example.com"
• "send an HTTP request to a web server"
• "listen for incoming connections on port 4444"
• "transfer a file between two machines"

Installation

brew install netcat

Key Features

• TCP and UDP client/server mode
• Port scanning with range support
• File transfer over network
• Banner grabbing from services
• Relay/proxy connections via -e
• DNS resolution and reverse lookups
• Verbose debugging output
• Timeout control for network operations