def main():
  print("start program")


if __name__ == "__main__";
  main()

def main():
  f = open("account.txt",'r')
  line = f.readlines() //전부 읽어라
#  line = f.readline() //앞줄만 읽어라
  print("start program")
  print(line)
  print(f)
  print(type(f))
  f.close()

if __name__ == "__main__":
  main()

=>start program
['admin\n', 'root\n', 'board\n', 'hacker\n', 'master\n']
< _io.TextIOWrapper name='account.txt' mode='r' encoding='UTF-8'>
< class '_io.TextIOWrapper'>

--------------------------------
중간 수정

  for id in line:
    print(id.strip())
=> 아이디를 엔터(\n)없이 출력


def main():
  f = open("account.txt",'r')
  line = f.readlines() #전부 읽어라
#  line = f.readline() #앞 줄만 읽어라
  print("start program")
  print(line)
  print(f)
  print(type(f))
  for id in line:
    print(id.strip())
  f.close()

if __name__ == "__main__":
  main()

--------------------------------
최종
def main():
  fid = open("account.txt",'r')
  fpw = open("passwd.txt.0",'r')
  fid = fid.readlines()
  fpw = fpw.readlines()
#  line = f.readline() #앞 줄만 읽어라
  print("start program")
#  print(line)
#  print(f)
#  print(type(f))
  cnt=0
  for id in fid:
    for pw in fpw:
      print(pw.strip())
      cnt=cnt+1
      print(cnt)
#  fpw.close()
#  fid.close()

if __name__ == "__main__":
  main()

--------------------------------
ssh = SSH()
telnet = TELNET()
ftp = FTP()
ftp.connect()
ftp.login()

등을 이용해보자!


virtual.izerone.co.kr의 보안조치는 적절한가?
적절하지 않다면 어떤 조치가 필요한가?

사용자 아이디가 틀릴 경우 사용자가 없다고 알려주는 것은 보안에 취약할 수 있다.

import threading
import time

# 쓰레드에서 실행할 함수 정의
def print_numbers():
    for i in range(1, 6):
        print(f"숫자: {i}")
        time.sleep(1)

def print_letters():
    for letter in ['A', 'B', 'C', 'D', 'E']:
        print(f"문자: {letter}")
        time.sleep(1)

# 쓰레드 생성(스타1캐리어)
thread1 = threading.Thread(target=print_numbers)
thread2 = threading.Thread(target=print_numbers)
thread3 = threading.Thread(target=print_numbers)
thread4 = threading.Thread(target=print_numbers)
thread5 = threading.Thread(target=print_numbers)
thread6 = threading.Thread(target=print_numbers)
thread7 = threading.Thread(target=print_numbers)
thread8 = threading.Thread(target=print_numbers)

thread2 = threading.Thread(target=print_letters)

# 쓰레드 시작(병렬)
thread1.start()
thread2.start()
thread3.start()
thread4.start()
thread5.start()
thread6.start()
thread7.start()
thread8.start()

# 쓰레드가 끝날 때까지 기다림
thread1.join()
thread2.join()

print("모든 작업이 완료되었습니다.")

test3.py
import requests

def main():
  print("start program");
  target = "http://virtual.izerone.co.kr/auth/lo>
  payload = {"id_param":"jyb","pw_param":"123456>
  response = requests.request('POST',target)
  print(response.text)

if __name__ == "__main__":
  main()

=> ci4에서는 작동되지 않는다!! (보안 good)
php는 될 수도 있음 ~~