如何避免“HTTP/1.1 999 请求被拒绝"来自LinkedIn的回应? [英] How to avoid "HTTP/1.1 999 Request denied" response from LinkedIn?

问题描述

我正在向 LinkedIn 页面发出请求并收到HTTP/1.1 999 请求被拒绝"响应.我使用 AWS/EC-2 并得到此响应.在本地主机上一切正常.

I'm making request to LinkedIn page and receiving "HTTP/1.1 999 Request denied" response. I use AWS/EC-2 and get this response. On localhost everything works fine.

这是我获取页面 html 代码的代码示例.

This is sample of my code to get html-code of the page.

<?php
error_reporting(E_ALL);
$url= 'https://www.linkedin.com/pulse/5-essential-strategies-digital-michelle';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$response = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
var_dump($response);
var_dump($info); 

我不需要整个页面的内容，只需要元标签(标题、OG 标签).

I don't need whole page content, just meta-tags (title, og-tags).

推荐答案

请注意，W3C 超文本传输​​协议 - HTTP/1.1，可能这个错误是自定义的(听起来像个笑话)

Note that the error 999 don't exist in W3C Hypertext Transfer Protocol - HTTP/1.1, probably this error is customized (sounds like a joke)

LinkedIn 不允许直接访问，他们阻止其他网络服务器访问任何url"的可能原因应该是:

LinkedIn don't allow direct access, the probable reason of them blocking any "url" from others webservers access should be to:

1. 防止未经授权的信息复制
2. 防止入侵
3. 防止滥用请求.
4. 强制使用 API

某些服务器的IP地址被屏蔽，因为国内ISP"的IP"没有被屏蔽，并且当您访问LinkedIn 与网络浏览器，您使用您的互联网提供商的 IP.

Some IP addresses of servers are blocked, as the "IP" from "domestic ISP" are not blocked and that when you access the LinkedIn with web-browser you use the IP of your internet provider.

访问数据的唯一方法是使用它们的 API.见:

The only way to access the data is to use their APIs. See:

• 使用 Python 访问 LinkedIn 公共页面
• Heroku 请求返回 999

注意:Google 和 Bing 可能将他们的 IP 放在白名单"中.

Note: The search engines like Google and Bing probably have their IPs in a "whitelist".

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