corerman

$.ajax({
  url: '/echo/error/',
  async: true,
  // retryCount and retryLimit will let you retry a determined number of times
  retryCount: 0,
  retryLimit: 10,
  // retryTimeout limits the total time retrying (in milliseconds)
  retryTimeout: 10000,
  // timeout for each request
  timeout: 1000,

corerman

vi /etc/sysctl.conf
将 net.ipv4.ip_forward=0
修改成 net.ipv4.ip_forward=1
sysctl -p
iptables -L -n -t nat 看规则列表
iptables -t nat -F 清空原有的nat规则
iptables -t nat -Z 清空原有的nat规则
iptables -F 清空所有的正常规则
iptables -X 清空所有的正常规则
iptables -Z 清空所有的正常规则

corerman

/*
* Use curl for http to send  body for the form array, header for the head array
* Reference: http: //www.q3060.com/list3/list117/28490.html
*/
function sendPostRequest($url,$body,$header=null)
{
    $ch = curl_init ();
    curl_setopt ( $ch, CURLOPT_URL, $url );
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("Expect: "));  //Increase the sending speed : 
    curl_setopt($ch, CURLOPT_POST,true);