I'm experiencing an issue where I'm running two websites locally on my Windows machine (a.ryan and b.ryan). The issue I'm experiencing does not happen on the live environment (running CentOS7). A script in b.ryan makes a CURL request to a.ryan:
* Rebuilt URL to: http://a.ryan/
* Hostname a.ryan was found in DNS cache
* Trying 192.168.0.64...
* TCP_NODELAY set
* Connected to a.ryan (192.168.0.64) port 80 (#0)
> GET / HTTP/1.1
Host: a.ryan
User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
Accept: */*
* Operation timed out after 10000 milliseconds with 0 bytes received
* Curl_http_done: called premature == 1
* Closing connection 0
As you can see - the connection times out. I've tried longer duration's here (with the same results) although in reality it should actually be near instant.
I'm currently using the following function:
function getHTML($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSLVERSION, 3);
curl_setopt($ch, CURLOPT_PROXY, '');
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, false);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)');
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_STDERR, fopen('curl.txt', 'w+'));
$tmp = curl_exec($ch);
curl_close($ch);
if ($tmp != false) {
return $tmp;
}
}
Admittedly there are a lot of options here that may not need to be present - however this is as a result of trying multiple solutions found online. Just to clarify, I get exactly the same response posted above when I use:
function getHTML($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_STDERR, fopen('curl.txt', 'w+'));
$tmp = curl_exec($ch);
curl_close($ch);
if ($tmp != false) {
return $tmp;
}
}
Hopefully that gives an idea of the settings I've tried with the PHP Curl method to get around this issue.
When the I run Curl on the Command Line, it works fine:
* Rebuilt URL to: a.ryan/
* Trying 192.168.0.64...
* TCP_NODELAY set
* Connected to a.ryan (192.168.0.64) port 80 (#0)
> GET / HTTP/1.1
> Host: a.ryan
> User-Agent: curl/7.55.1
> Accept: */*
>
< HTTP/1.1 302 Moved Temporarily
< Server: nginx/1.12.0
< Date: Wed, 01 May 2019 11:34:12 GMT
< Content-Type: text/html; charset=UTF-8
< Transfer-Encoding: chunked
< Connection: keep-alive
< X-Powered-By: PHP/5.6.30
< Set-Cookie: PHPSESSID=9898j4cia9s888jn24gr4be8m5; path=/
< Expires: Thu, 19 Nov 1981 08:52:00 GMT
< Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Pragma: no-cache
< location: /home
<
* Connection #0 to host a.ryan left intact
I've also disabled all IPv6 configuration on my network interfaces on this machine, as I was originally under the impression that this issue was caused by IPv6 resolutions instead of IPv4, but it made no difference.
Here's a copy of my hosts file if it helps.
# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#102.54.94.97 rhino.acme.com # source server
#38.25.63.10 x.acme.com # x client host
# localhost name resolution is handled within DNS itself.
#127.0.0.1 localhost
#::1 localhost
127.0.0.1 localhost.localdomain localhost MyPCName
127.0.0.1 a.ryan
127.0.0.1 b.ryan
EDIT
Forgot to mention - If I run the script in the CLI, it runs fine also. So it's actually specific to running the script through the browser. (Using Winginx to serve the website)
