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关于curl时提示“ couldn't connect to host ”的异常信息

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Release: 2016-06-13 13:00:49
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关于curl时提示“ couldn't connect to host ”的错误信息
我使用curl函数去访问a.com网址,以前很正常,最近几天感觉非常不稳定,系统的错误日志里记录了不少curl访问出错的情况,一般都是提示:
couldn't connect to host

出现这样的情况,我以为是服务器找不到a.com这台主机了,但是登陆服务器ping a.com,却正常的获取到ip地址。这说明从服务器可以正确的解析a.com网址,排除服务器找不到目标主机的情况,那么剩下的可能是什么呢?


代码如下:

$url = 'http://a.com';<br />
<br />
$curl = curl_init($url);<br />
curl_setopt( $curl, CURLOPT_POST, 1 );<br />
curl_setopt( $curl, CURLOPT_POSTFIELDS, $Parameters );<br />
curl_setopt( $curl, CURLOPT_HEADER, 0 );<br />
curl_setopt( $curl, CURLOPT_RETURNTRANSFER , 1 );<br />
$response = curl_exec($curl);<br />
$curl_error = curl_error($curl);
Copy after login

------解决方案--------------------
直接访问那个地址能打开吗 
------解决方案--------------------
http://a.com  这么奇怪的域名 楼主确定可以打开吗?
------解决方案--------------------
那是访问不了那个域名啊,你换成baidu.com,我就不信还是couldn't connect to host这个
------解决方案--------------------
服务器的防火墙是否禁用了某些端口?

你说大部分时间是正常的。感觉跟服务器无关,可能网络繁忙,网速慢的原因呢

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