Reference library

Automation & scripting

CLI tools, scheduled jobs, filesystem tasks, and glue scripts that save time.

3 matches

How to Detect Network Interface Changes in Python

Monitor active network interfaces and print a message when an interface is added or removed using psutil and socket.

import socket
import psutil
import time

def get_network_interfaces():
    """Return a set of currently active interface names."""
    active_ifaces = set()
    for iface, addrs in psutil.net_if_addrs().items():
        for addr in addrs:
            if addr.family == socket.AF_INET:  # IPv4 address present
          …

24 0 Open

Automation & scripting medium

How to Scan Open Ports on a Host with Python

A Python function that uses socket.connect_ex to check for open TCP ports on a given host within a range and returns a list of open ports.

socket network port-scanning

Python

import socket

def scan_ports(host, start_port, end_port):
    open_ports = []
    for port in range(start_port, end_port + 1):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(0.5)
        result = sock.connect_ex((host, port))
        if result == 0:
            open_ports.app…

23 0 Open

Automation & scripting medium

How to Validate SSL Certificates for Multiple Domains in Python

A Python utility that checks SSL certificate expiry dates for a list of domains using the standard library ssl and socket modules.

ssl certificate validation

Python

import ssl
import socket
from datetime import datetime

def check_ssl_certificate(hostname: str, port: int = 443) -> dict:
    """Validate SSL certificate for a given hostname."""
    context = ssl.create_default_context()
    with socket.create_connection((hostname, port), timeout=5) as sock:
        with context.wra…

22 0 Open

Browse by section

Each section groups closely related Python snippets.