nmap_basic_scan
Perform basic network scans to identify open ports and services on specified targets using common scanning techniques.
Instructions
Perform a basic Nmap scan of specified targets
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| targets | Yes | ||
| ports | No | common | |
| scan_type | No | quick |
Implementation Reference
- server.py:97-119 (handler)The main handler function for the nmap_basic_scan tool. It constructs Nmap command arguments based on the scan_type parameter (quick, comprehensive, or stealth) and executes the scan using the run_nmap_command helper.async def nmap_basic_scan( targets: str, ports: str = "common", scan_type: str = "quick" ) -> str: """Perform a basic Nmap scan of specified targets.""" args = ["-p", ports] if scan_type == "quick": args.extend(["-T4", "--min-rate=1000"]) elif scan_type == "comprehensive": args.extend(["-sS", "-sV", "-O", "--script=default"]) elif scan_type == "stealth": args.extend(["-sS", "-T2", "--min-rate=100"]) args.append(targets) result = run_nmap_command(args) if result["success"]: return f"Basic scan completed successfully:\n\n{result['stdout']}" else: return f"Basic scan failed:\n\n{result['stderr']}"
- server.py:93-96 (registration)Registers the nmap_basic_scan tool with the FastMCP app using the @app.tool decorator, specifying the name and description.@app.tool( name="nmap_basic_scan", description="Perform a basic Nmap scan of specified targets" )
- server.py:38-91 (helper)Shared helper function used by nmap_basic_scan (and other tools) to execute Nmap commands via subprocess, handling timeouts, errors, and parsing output.def run_nmap_command(args: List[str], timeout: int = 300) -> Dict[str, Any]: """ Execute an nmap command and return the results. Args: args: List of nmap command arguments timeout: Command timeout in seconds Returns: Dictionary containing command output, error, and exit code """ try: # Construct the full nmap command cmd = ["nmap"] + args logger.info(f"Executing nmap command: {' '.join(cmd)}") # Run the command with timeout result = subprocess.run( cmd, capture_output=True, text=True, timeout=timeout, check=False ) return { "stdout": result.stdout, "stderr": result.stderr, "exit_code": result.returncode, "success": result.returncode == 0 } except subprocess.TimeoutExpired: return { "stdout": "", "stderr": f"Command timed out after {timeout} seconds", "exit_code": -1, "success": False } except FileNotFoundError: return { "stdout": "", "stderr": "nmap command not found. Please ensure nmap is installed and in PATH", "exit_code": -1, "success": False } except Exception as e: return { "stdout": "", "stderr": f"Error executing nmap command: {str(e)}", "exit_code": -1, "success": False }