Randy Chen goodjob1114

Moved to git repository: https://github.com/denji/nginx-tuning

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 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading 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.

Types

type Vertex struct {
    Lat, Long float64
}

Maps

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

How To TCP NAT Traversal using Node.js and a STUN Server

With the scarecity of IPv4 addresses, and IPv6 still not available at large, NAT traversal is becoming a necessity. Especially with the generalisation of Carrier-grade NATs that you can find on mobile connections. Even with IPv6 you may suffer NAT66. Imagine your mobile device that gets only a single Ipv6 address, and you want to share it on your computer.

The solution might be in a decentralized protocol for address attribution such

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	package main

	import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/base64"
	"fmt"
	"io"
	)

	#!/usr/bin/env phantomjs

	var system = require('system');
	var text = encodeURIComponent(system.stdin.read());
	var url = "http://translate.google.com/#auto/en/" + text;

	var page = require('webpage').create();
	page.settings.userAgent = 'Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:13.0) Gecko/20100101 Firefox/13.0';

	page.onConsoleMessage = function (msg) {

	var fs = require('fs')
	, net = require('net')
	, http = require('http')
	, port = process.env.PORT;

	var app = function (req, res) {
	res.writeHead(200, {'Content-Type': 'text/plain'});
	res.end('Hello World\n');
	};

	//Build with: go build ./jsonpp.go

	package main

	import "encoding/json"
	import "fmt"
	import "io/ioutil"
	import "os"