腾讯云轻量服务器+代理IP：爬虫/电商/安全3场景实战

# CentOS系统
yum update -y
yum install python3 python3-pip git wget curl -y
pip3 install requests random-user-agent retry

# Ubuntu系统
apt update -y
apt install python3 python3-pip git wget curl -y
pip3 install requests random-user-agent retry

import requests
import random
import time
from random_user_agent.user_agent import UserAgent
from retry import retry

# 代理IP池（替换为自己的代理IP资源，站大爷zdaye.com）
PROXY_POOL = [
    "http://账号:密码@IP1:端口",
    "http://账号:密码@IP2:端口",
    "http://账号:密码@IP3:端口"
]

# 随机UA伪装，模拟真实浏览器访问
ua = UserAgent()

@retry(tries=3, delay=2)  # 请求失败自动重试3次，间隔2秒
def spider_crawl(url):
    # 随机选取代理IP，规避单IP高频风控
    proxy = random.choice(PROXY_POOL)
    proxies = {
        "http": proxy,
        "https": proxy
    }
    # 模拟真实浏览器请求头
    headers = {
        "User-Agent": ua.random,
        "Referer": "https://www.baidu.com/",
        "Accept-Language": "zh-CN,zh;q=0.9"
    }
    # 随机3-5秒间隔请求，模拟人工浏览行为
    time.sleep(random.uniform(3,5))
    response = requests.get(url, headers=headers, proxies=proxies, timeout=10)
    # 触发换IP机制：遇到封禁、限流状态码直接报错重试
    if response.status_code in [403,429]:
        raise Exception("IP被封禁，切换代理重试")
    print(f"请求成功，当前代理：{proxy}，状态码：{response.status_code}")
    return response.text

# 批量采集测试
if __name__ == "__main__":
    target_urls = ["https://www.example.com"] * 10
    for url in target_urls:
        data = spider_crawl(url)
        # 可自行添加数据解析、本地保存、入库逻辑
        print("数据采集完成")

import requests
import random
import time
from datetime import datetime

# 电商专属住宅代理配置
PROXY_POOL = [
    "http://账号:密码@住宅IP1:端口",
    "http://账号:密码@住宅IP2:端口"
]

# 模拟真实浏览器请求头，完善指纹伪装
HEADERS = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
    "Referer": "https://item.jd.com/",
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
}

# 存储历史价格，用于对比价格变动
last_price = None

def monitor_shop_price(item_url):
    global last_price
    proxy = random.choice(PROXY_POOL)
    proxies = {"http": proxy, "https": proxy}
    try:
        res = requests.get(item_url, headers=HEADERS, proxies=proxies, timeout=15)
        if res.status_code != 200:
            print(f"请求异常，状态码：{res.status_code}，切换IP重试")
            return
        
        # 可根据对应电商页面源码，替换专属价格解析逻辑
        current_price = float(res.text.split("price")[1][:10].strip().replace("：","").replace("元",""))
        now_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        
        # 价格变动触发预警提示
        if last_price and current_price != last_price:
            print(f"【价格变动预警】{now_time} 历史价：{last_price}元 当前价：{current_price}元")
        else:
            print(f"【正常巡检】{now_time} 当前商品价格：{current_price}元")
        last_price = current_price
        
    except Exception as e:
        print(f"监控异常：{str(e)}，更换代理继续运行")

# 定时循环监控，60秒巡检一次，可自行调整间隔
if __name__ == "__main__":
    target_item = "https://item.jd.com/xxxx.html" # 替换为你的目标商品链接
    while True:
        monitor_shop_price(target_item)
        time.sleep(60)

import requests
import random
import socket

# 安全测试专用代理池
PROXY_POOL = [
    "http://账号:密码@IP1:端口",
    "http://账号:密码@IP2:端口"
]

def anonymous_scan(target_host, port_list):
    # 随机切换匿名代理，隐藏真实出口IP
    proxy = random.choice(PROXY_POOL)
    proxies = {"http": proxy, "https": proxy}
    print(f"当前探测代理IP：{proxy.split('@')[-1]}")
    
    # 批量检测端口连通性
    for port in port_list:
        try:
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            sock.settimeout(2)
            result = sock.connect_ex((target_host, port))
            if result == 0:
                print(f"端口{port}：开放")
            else:
                print(f"端口{port}：关闭")
            sock.close()
        except Exception as e:
            print(f"端口{port}检测异常：{str(e)}")
    
    # 匿名检测网站访问状态
    try:
        res = requests.get(f"https://{target_host}", proxies=proxies, timeout=10)
        print(f"网站访问状态码：{res.status_code}")
    except Exception as e:
        print(f"网站访问异常：{str(e)}")

# 合规测试运行（仅授权目标可用）
if __name__ == "__main__":
    target = "test.example.com" # 替换为已授权的测试目标
    scan_ports = [80,443,8080,22]
    anonymous_scan(target, scan_ports)