Joenel de Asis joeneldeasis

Nginx Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400,000 to 500,000 requests per second (clustered), most what i saw is 50,000 to 80,000 (non-clustered) requests per second and 30% CPU load, course, this was 2xIntel Xeon with HT enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

First, you will need to install nginx, my way to install nginx is compiling it from source, but for now we will use apt-get

Let's Encrypt on Ubuntu 14.04, nginx with webroot auth

This document details how I setup LE on my server. Firstly, install the client as described on http://letsencrypt.readthedocs.org/en/latest/using.html and make sure you can execute it. I put it in /root/letsencrypt.

As it is not possible to change the ports used for the standalone authenticator and I already have a nginx running on port 80/443, I opted to use the webroot method for each of my domains (note that LE does not issue wildcard certificates by design, so you probably want to get a cert for www.example.com and example.com).

Configuration

For this, I placed config files into etc/letsencrypt/configs, named after <domain>.conf. The files are simple:

Uses capped collection, tailable cursors and streams.

What's here?

init.js recreates collection capped collection 'queue' on mongodb.
writer.js spams queue with new messages
worker.js processes all messages saved to queue,
onceWorker.js processes only unprocessed messages, so you can spawn several of them and each of your messages will be processed by only one worker.

	var express = require('express'),
	passport = require('passport'),
	LocalStrategy = require('passport-local').Strategy,
	connect = require('connect'),
	http = require('http'),
	path = require('path'),
	util = require('util'),
	fs = require('fs'),
	redis = require('redis'),
	cookie = require('cookie'),

	Search Results Page: Use the code provided from your Google Custom Search Page and place it where it should appear.

	Search Field:

	<form action="wherethesearchresultsshouldapper" id="cse-search-box">
	<div>
	<input type="hidden" name="cx" value="googlesearchid" />
	<input type="hidden" name="ie" value="UTF-8" />
	<input type="text" name="q" size="15" />
	<input type="submit" name="sa" value="Search" />

	Here’s how to install Lighttpd and php5-cgi package:

	sudo apt-get install lighttpd php5-cgi

	Enable PHP in Lighttpd:

	sudo lighty-enable-mod fastcgi
	sudo lighty-enable-mod fastcgi-php

	Reload the Lighttpd daemon:

	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml" lang="EN">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>Full Page IFrame</title>
	<style type="text/css">
	html {overflow: auto;}
	html, body, div, iframe {margin: 0px; padding: 0px; height: 100%; border: none;}
	iframe {display: block; width: 100%; border: none; overflow-y: auto; overflow-x: hidden;}
	</style>

	// from http://scratch99.com/web-development/javascript/convert-bytes-to-mb-kb/
	function bytesToSize(bytes) {
	var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
	if (bytes == 0) return 'n/a';
	var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
	if (i == 0) return bytes + ' ' + sizes[i];
	return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + sizes[i];
	};

	[
	{ "keys": ["ctrl+shift+x"], "command": "reindent", "args": {"single_line": false} }
	]

Joenel de Asis joeneldeasis

Nginx Tuning For Best Performance

Let's Encrypt on Ubuntu 14.04, nginx with webroot auth

Configuration

What's here?

Steps