The php cURL extension on the Apache server I've inherited from my predecessor doesn't work.
I'm using the following code:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://www.linkedin.com/nhome/');
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.73 Safari/537.36");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_STDERR, $fp);
$response = curl_exec($ch);
$errmsg = curl_error($ch);
$cInfo = curl_getinfo($ch);
curl_close($ch);
Which returns the error:
* name lookup timed out
* Couldn't resolve host 'www.linkedin.com'
* Closing connection #0
However if I use an IP address instead of an URL it works:
* About to connect() to 54.171.54.110 port 80
* Trying 54.171.54.110... * connected
* Connected to 54.171.54.110 (54.171.54.110) port 80
I'm assuming this is a DNS issue? How should I begin to troubleshoot the problem?
Best Answer
Thanks to ThoriumBR's comment for a push in the right direction.
The nameserver listed in /etc/resolv.conf wasn't working, so I replaced it with google's public nameservers: