Modified Python Scripts for Network Audit using reportlab, python-nmap, psutil (Kali Linux)

Advanced Network Intelligence Report

Stepping up to a "Pro" network scanner with port discovery and interface mapping.

Evolution: We are integrating python-nmap for port discovery and psutil for interface details (MAC, gateway) to build a professional auditor.

1. Updated Script Requirements

You must install additional libraries in your Kali terminal to handle network-level data and port scanning.

1. Update your package list and install dependencies: sudo apt update && pip3 install python-nmap psutil reportlab

Note: This script requires sudo because nmap needs root privileges for certain types of TCP scans.

2. The Python Script: Pro-Network Auditor

This version fetches local interface data and performs a TCP port scan on the hosts it finds.

import socket
import os
import psutil
import nmap
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas

def get_network_interfaces():
    interfaces = []
    stats = psutil.net_if_addrs()
    for intf, addrs in stats.items():
        for addr in addrs:
            if addr.family == socket.AF_INET:
                interfaces.append({"name": intf, "ip": addr.address, "mask": addr.netmask})
    return interfaces

def scan_ports(ip):
    nm = nmap.PortScanner()
    try:
        nm.scan(ip, '21,22,80,443,3389', arguments="-T4")
        if ip in nm.all_hosts():
            open_ports = []
            for proto in nm[ip].all_protocols():
                lport = nm[ip][proto].keys()
                for port in lport:
                    if nm[ip][proto][port]['state'] == 'open':
                        open_ports.append(f"{port}({proto})")
            return ", ".join(open_ports) if open_ports else "None Found"
    except Exception:
        pass
    return "Scan Failed"

Figure: Pro-Network Intelligence PDF Report using ReportLab. (Click to enlarge)

What’s New in This Version:

• System Interface Discovery: Uses psutil to list active cards (eth0, wlan0) for network context.
• Integrated Port Scanner: Probes target IPs for common services like SSH (22), HTTP (80), and RDP (3389).
• Cleaned Up PDF Layout: Improved report structure with section headers and lines.

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Generated for Kali Linux Power Users - 2026