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Disce Layer 4 ineundo et 7 ineundo ineundo mores et quomodo obtinendum realem clientem IP

2024-07-11

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Praeparatio

lab environment

IPMunus
192.168.1.100Clientem petentibus IP
192.168.1.100HTTP officium incepit a python
192.168.1.102nginx ministerium
192.168.1.103haproxy ministerium

HTTP servitium

Hoc est simplex HTTP officium quod maxime procer HTTP nuntiis analyzing client IP

#!/usr/bin/env python
# coding: utf-8

import socket
from threading import Thread

# 创建socket对象
sock_srv = socket.socket()

# 绑定IP和port
sock_srv.bind(('0.0.0.0', 5001))

# 开启服务
sock_srv.listen()

# 定义一个函数, 处理来自客户端链接的处理
def socket_deal(conn: socket.socket, address: tuple):
	# 通过socket获取客户端的IP; 这里的客户端IP其实指的是TCP报文中的原始IP和原始Port
	# 就是上一个发起TCP发起的地址 
    print(address)

    # 打印HTTP的报文
    print(conn.recv(1024).decode())

    # 不做特殊处理,所有的请求均返回Hello Word
    template = """
HTTP/1.1 200 OK
Service: HTTP
Version: 1.1.2.2