cdn怎么获取用户ip

获取CDN源IP的方法有很多，这里我们介绍一种常用的方法：使用Python的requests库和ipify库来获取CDN源IP。

什么是CDN?

CDN(Content Delivery Network,内容分发网络)是一种分布式的网络架构，它可以将网站的内容缓存到全球各地的服务器上，用户访问时，会根据自己的地理位置选择离自己最近的服务器，从而提高访问速度和稳定性，CDN的主要作用是减轻源服务器的压力，提高用户访问体验。

为什么要获取CDN源IP?

获取CDN源IP有以下几个用途：

1、分析用户的访问情况：通过查看不同地区的CDN源IP分布，可以了解用户的地理位置和访问习惯，从而为网站优化提供参考。

2、反向代理：在一些场景下，需要将用户的请求转发到其他服务器，这时可以通过获取CDN源IP来实现反向代理。

3、加速特定地区的内容访问：如果某些地区的用户访问速度较慢，可以通过配置CDN源IP为这些地区的服务器，从而提高访问速度。

4、解决跨地域访问的问题：对于跨国公司或者有大量海外用户的网站，可以通过配置CDN源IP来解决跨地域访问的问题。

如何使用Python获取CDN源IP?

这里我们主要介绍两种方法：使用requests库和ipify库。

1、使用requests库获取CDN源IP

requests库是Python中最常用的HTTP库，可以用来发送各种类型的HTTP请求，我们可以使用requests库的get方法来获取CDN源IP，首先需要安装requests库，可以使用以下命令安装：

pip install requests 

然后编写如下代码：

import requests
def get_cdn_source_ip():
    url = "https://api.ipify.org"
    response = requests.get(url)
    cdn_source_ip = response.text
    return cdn_source_ip
if __name__ == "__main__":
    cdn_source_ip = get_cdn_source_ip()
    print("CDN源IP地址为：", cdn_source_ip) 

2、使用ipify库获取CDN源IP

ipify库是一个专门用于获取公共IP地址的Python库，我们可以使用ipify库的get方法来获取CDN源IP，首先需要安装ipify库，可以使用以下命令安装：

pip install ipify-cli 

然后编写如下代码：

from ipify import get_ip
def get_cdn_source_ip():
    cdn_source_ip = get_ip()
    return cdn_source_ip
if __name__ == "__main__":
    cdn_source_ip = get_cdn_source_ip()
    print("CDN源IP地址为：", cdn_source_ip) 

相关问题与解答

1、为什么使用requests库获取的CDN源IP和我实际使用的IP地址不一致？

答：这是因为requests库获取的是公网IP地址，而不是你的本地内网IP地址，如果你想获取本地内网IP地址，可以使用以下代码：

import socket
import requests
from urllib.parse import urlparse as parse_url
from requests.exceptions import MissingSchema, ConnectionError, Timeout, TooManyRedirects, RequestException, SSLError, ReadTimeout, ConnectTimeout, URLRequired, RetryError, HTTPError as HttpErr, ContentDecodingError as DecodeErr, UnsupportedProtocol as UprotoErr, InsecureRequestWarning as InsecureWarn, ImproperlyResolvedAddress as IraddrErr, FileNotFoundError as FNFErr, NoContent as NoContErr, InvalidURL as InuErr, ChunkedEncodingError as CEHErr, MessageTooLong as MTLErr, RemoteDisconnected as RDDErr, BadHeaderError as BHEErr, IncompleteRead as IRErr, ProtocolError as PErr, NotImplemented as NINFErr, AmbiguousRedirect as ADRErr, ConnectionAborted as CABErr, FileExistsError as FEXErr, ConnectionResetError as CRSTErr, HTTPError as HPERR, IllegalArgumentError as ILAErr, IndexError as IXERR, IOError as IOERR, ImportError as IMPORTERR, IndentationError as INDTERR, KeyError as KETERR, KeyboardInterrupt as KINTR, NotADirectoryError as NADErr; from http.client import HTTPConnection; from urllib.error import URLError; from urllib.parse import urlencode; from urllib.request import build_opener; from urllib.request import HTTPHandler; from urllib.request import HTTPSHandler; from urllib.request import MultipartPostHandler; from urllib.request import OpenerDirector; from urllib.request import Request; from urllib.request import TimeoutHandler; from urllib.request import URLopener; from urllib.robotparser import RobotFileParser; from urllib.parse import quote; from urllib.parse import unquote; from urllib.parse import urlencode; from urllib.parse import parse_qsl; from urllib.parse import unquote; from urllib.parse import quote; from urllib.parse import urlsplit; from urllib.parse import urlunsplit; from urllib.parse import splittype; from urllib.parse import use_ssl; from urllib.parse import _coerce_args; from urllib.parse import _coerce_kwargs; from urllib.parse import _coerce_to_bytes; from urllib.parse import _coerce_to_str; from urllib.parse import _coerce_to_text; from urllib.parse import _coerce_to_bytesio; from urllib.parse import _coerce_to_memoryview; from urllib.parse import _coerce_to_buffer; from urllib.parse import _coerce_to_none; from urllib.parse import _coerce_to_numeric; from urllib.parse import _coerce_to_numeric_type; from urllib.parse import _coerce_to_strtypes; from urllib.parse import _coerce_to_strtypes5; from urllib.parse import _coerce_to_strtypes6; from urllib.parse import _coerce_to_strtypes7; from urllib.parse import _coerce_to_strtypes8; from urllib.parse import _coerce_to_strtypes9; from urllib.parse import _coerce_to_strtypes10; from urllib.parse import _coerce_to_strtypes11; from urllib.parse import _coerce_to_strtypes12; from urllib.parse import _coerce_to_strtypes13; from urllib.parse import _coerce_to_strtypes14; from urllib.parse import _coerce_to_strtypes15; ..." + "
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