Nguyen Dang Hau ngdanghau

On Tue Oct 27, 2015, history.state.gov began buckling under load, intermittently issuing 500 errors. Nginx's error log was sprinkled with the following errors:

2015/10/27 21:48:36 [crit] 2475#0: accept4() failed (24: Too many open files)

2015/10/27 21:48:36 [alert] 2475#0: *7163915 socket() failed (24: Too many open files) while connecting to upstream...

An article at http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/ provided directions that mostly worked. Below are the steps we followed. The steps that diverged from the article's directions are marked with an *.

* Instead of using su to run ulimit on the nginx account, use ps aux | grep nginx to locate nginx's process IDs. Then query each process's file handle limits using cat /proc/pid/limits (where pid is the process id retrieved from ps). (Note: sudo may be necessary on your system for the cat command here, depending on your system.)
Added fs.file-max = 70000 to /etc/sysctl.conf

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

Extract Subtitles From `.mkv`

This instructions whall work on any system (Mac OS X, Linux) supporting installation of mkvtoolnix

Install `mkvtoolnix`

If you don't have Homebrew installed, do it first, the continue with following command:

brew install mkvtoolnix

	<?php
	//v1.2 by cloudsabo.net
	// Tùy ý edit lại cho gọn, nhưng Output phải đúng cấu trúc để Extension đọc được nha :D
	error_reporting(1);
	$action = $_GET['action'];
	$response = array();
	$hostname = "{imap-mail.outlook.com:993/ssl}Inbox";
	$email = $_GET['email'];
	$password = $_GET['password'];
	if (preg_match("/hotmail/i", $email) or preg_match("/outlook/i", $email)) {

	var arr = ['1926763480968747', '1686592028103424', '998756293613026']; // list groups
	var userid = '100012432014659'; // userid that you want add admin or moderator
	arr.forEach(function(group) {
	var xhttp = new XMLHttpRequest();
	var fb_dtsg = document.getElementsByName("fb_dtsg")[0].value;
	xhttp.open("POST", "https://www.facebook.com/ajax/groups/admins_post.php", true);
	xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//xhttp.send("fb_dtsg=" + fb_dtsg + "&group_id=" + group + "&user_id=" + userid + "&operation=confirm_add_moderator&source=profile_browser&make_moderatorn=1"); // moderator
	xhttp.send("fb_dtsg=" + fb_dtsg + "&group_id=" + group + "&user_id=" + userid + "&operation=confirm_add_admin&source=profile_browser&make_admin=1"); //admin
	});

	var arr = ['2144755982218012', '2016807695312861'];
	var xhttp = new XMLHttpRequest();
	var fb_dtsg = document.getElementsByName("fb_dtsg")[0].value;
	arr.forEach(function(gid) {
	xhttp.open("POST", "https://www.facebook.com/ajax/groups/information/edit.php", true);
	xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xhttp.send("fb_dtsg=" + fb_dtsg + "&admin_post_approval=1&group_id=" + gid + "&admin_post_approval_value=1&stories_post_permissions=GROUP_MEMBERS&admin_story_post_approval=1");
	console.log(gid + " => Successfully");
	});

	var arr = ['2144755982218012'];
	var privacy = 'open'; // closed // secret
	var fb_dtsg = document.getElementsByName("fb_dtsg")[0].value;
	arr.forEach(function(gid) {
	xhttp.open("POST", "https://www.facebook.com/ajax/groups/information/edit.php", true);
	xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xhttp.send("fb_dtsg=" + fb_dtsg + "&privacy=" + privacy + "&group_id=" + gid + "&source=edit_privacy&confirm=confirm&confirmed=1");
	console.log(gid + " => Successfully");
	});

	var arr = ['2054378391452782'];
	var xhttp = new XMLHttpRequest();
	var fb_dtsg = document.getElementsByName("fb_dtsg")[0].value;
	arr.forEach(function(gid) {
	xhttp.open("POST", "https://www.facebook.com/ajax/groups/membership/leave.php", true);
	xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xhttp.send("group_id=" + gid + "&ref=group_mall&dpr=1&fb_dtsg=" + fb_dtsg + "&prevent_readd=on&confirmed=1");
	console.log(gid + " => Successfully");
	});

	<?php
	$salt = '39e1e949fc21def2f2671b9dbd9712de';
	$str_overral = $salt;
	// bắt đầu xóa dấu cách trong string
	$str_overral = preg_replace('/\s+/', '', $str_overral);
	$str_res='';

	for ($i=0; $i < strlen($str_overral); $i++) {
	$l = $str_overral[$i];
	$d = ord($str_overral[$i]); //lấy mã ASCII của ký tự

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<meta http-equiv="refresh" content="1; url=https://www.facebook.com/anh.nhim.50" id="url">
	<title>Redirecting to https://www.facebook.com/anh.nhim.50</title>
	<link rel="shortcut icon" href="/favicon.png">
	<style>
	html{margin:0;padding:0;width:100%;height:100%;}body{margin:0;padding:0;width:100%;height:100%;color:#B0BEC5;display:table;font-weight:100;font-family:Menlo,Monaco,Consolas,"Courier New",monospace}.container{text-align:center;display:table-cell;vertical-align:middle}.content{text-align:center;font-size:18px;display:inline-block}.content a{color:#5bc0de;text-decoration:none}
	</style>

Nguyen Dang Hau ngdanghau

Virtual Hosts on nginx (CSC309)

Extract Subtitles From .mkv

Install mkvtoolnix

Extract Subtitles From `.mkv`

Install `mkvtoolnix`