无法连接到www.googleapis.com端口443:无法连接网络 [英] Failed to connect to www.googleapis.com port 443: Network unreachable

问题描述

我正在尝试使用 Google Client API .我按照此处的说明进行操作，但是当我致电$ client- > authenticate($ code);命令会引发异常，告诉您:
无法连接到www.googleapis.com端口443:网络不可访问
有什么问题吗?

I'm trying to implement google sign-in in my website that is written in Symfony2 using Google Client API. I followed the instructions here, but when I call $client->authenticate($code); command an exception is thrown telling that:
Failed to connect to www.googleapis.com port 443: Network unreachable
What is the problem?

推荐答案

解决方案2(来自更新). ipv6接口和php curl似乎存在一些错误，因此另一种解决方案是在curl函数中设置适当的选项以在您的php脚本中使用ipv4连接到远程服务器

Solution 2 (from update). it seems to be some bug with ipv6 interfaces and curl with php, so another solution is to set the appropiate option in curl function to connect to the remote server with ipv4 in your php script

curl_setopt($ curl，CURLOPT_IPRESOLVE，CURL_IPRESOLVE_V4);

curl_setopt( $curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);

解决方案1.

我也遇到了同样的情况(通过将ip v4和主机名添加到/etc/hosts文件来解决)，正如@ hans-z在另一个答案注释中指出的那样，我尝试使用next命令来验证网络问题.

The same happened to me (solved by adding the ip v4 and hostname to /etc/hosts file), As pointed by @hans-z in another answer comment, I tried using next command to validate the network issue.

curl -v https://www.googleapis.com 

事实证明，它是随机的，只有十分之一的尝试curl命令可以连接到服务器，响应类似于: ("La red es inaccesible"在英语中意为网络无法访问":))

It turned out that it was randomly, and only 1 in 10 tries the curl command could connect to the server, the response was something like: ("La red es inaccesible" means in english "network unreachable" :) )

$ curl -v https://www.googleapis.com
* Rebuilt URL to: https://www.googleapis.com/
* Hostname was NOT found in DNS cache
*   Trying 64.233.186.95...
*   Trying 2800:3f0:4003:c00::5f...
* connect to 2800:3f0:4003:c00::5f port 443 failed: La red es inaccesible
* Failed to connect to www.googleapis.com port 443: La red es inaccesible
* Closing connection 0
curl: (7) Failed to connect to www.googleapis.com port 443: La red es inaccesible

成功的答复是:

curl -v https://www.googleapis.com
* Rebuilt URL to: https://www.googleapis.com/
* Hostname was NOT found in DNS cache
*   Trying 64.233.186.95...
*   Trying 2800:3f0:4003:c00::5f...
* Connected to www.googleapis.com (64.233.186.95) port 443 (#0)
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server key exchange (12):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using ECDHE-RSA-AES128-GCM-SHA256
* Server certificate:
*    subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=*.storage.googleapis.com
*    start date: 2015-04-08 14:12:01 GMT
*    expire date: 2015-07-07 00:00:00 GMT
*    subjectAltName: www.googleapis.com matched
*    issuer: C=US; O=Google Inc; CN=Google Internet Authority G2
*    SSL certificate verify ok.
> GET / HTTP/1.1
> User-Agent: curl/7.35.0
> Host: www.googleapis.com
> Accept: */*
> 
< HTTP/1.1 404 Not Found
< Cache-Control: no-cache, no-store, max-age=0, must-revalidate
< Pragma: no-cache
< Expires: Fri, 01 Jan 1990 00:00:00 GMT
< Date: Tue, 21 Apr 2015 21:38:12 GMT
< Vary: X-Origin
< Content-Type: text/html; charset=UTF-8
< X-Content-Type-Options: nosniff
< X-Frame-Options: SAMEORIGIN
< X-XSS-Protection: 1; mode=block
* Server GSE is not blacklisted
< Server: GSE
< Alternate-Protocol: 443:quic,p=1
< Accept-Ranges: none
< Vary: Origin,Accept-Encoding
< Transfer-Encoding: chunked
< 
* Connection #0 to host www.googleapis.com left intact

奇怪的消息是在DNS缓存中未找到主机名"，我使用的是Google DNS的4.4.4.4和8.8.8.8，因此我使用curl命令输出中的ipv4将该域添加到了/etc/hosts文件中问题就解决了.

The weird message was "Hostname was NOT found in DNS cache", I was using google DNS's 4.4.4.4 and 8.8.8.8, so I added that domain to my /etc/hosts file using the ipv4 from the curl command output and the problem was solved.

#/etc/hosts
...
64.233.186.95 www.googleapis.com
#DONT COPY THIS IP, USE THE ONE FROM YOUR CURL OUTPUT
...

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