sem1h

Unity'de 3D çalışırken kafa kurcalayan konulardan biri Quaternion'ların ne işe yaradığı ve neden bazı yerlerde rotasyon değeri olarak Euler Angle değil de Quaternion kullanıldığıdır.

3 Boyutlu rotasyon belirtmek için kullanılan Euler Açısı, bir 3x3 rotasyon matrisi ile ifade edilebiliyor. Örnek:

İdeal bir sistemde her bir rotasyon matrisinin, yalnızca tek açıya isabet etmesini isteriz. Sorun şu ki bu matrisler, her zaman için tek açıya tekabül etmeyebiliyor.

velizarn

#!/bin/bash

# http://serverfault.com/questions/410321/debian-ip6tables-rules-setup-for-ipv6/410327#410327
# http://ipset.netfilter.org/iptables.man.html
# https://www.sixxs.net/wiki/IPv6_Firewalling
# https://www.cyberciti.biz/faq/ip6tables-ipv6-firewall-for-linux/
# https://gist.github.com/thomasfr/9712418
# https://gist.github.com/SnakeDrak/f4150f6e517e5a1d525f
# http://www.thegeekstuff.com/2011/06/iptables-rules-examples
# http://www.thegeekstuff.com/scripts/iptables-rules

anhldbk

1. Overview

This is an example of using module tls in NodeJS to create a client securely connecting to a TLS server.

It is a modified version from documentation about TLS, in which:

• The server is a simple echo one. Clients connect to it, get the same thing back if they send anything to the server.
• The server is a TLS-based server.
• Clients somehow get the server's public key and use it to work securely with the server

2. Preparation

leommoore

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

ruckus

** Find commmonly accessed tables and their use of indexes:

SELECT relname,seq_tup_read,idx_tup_fetch,cast(idx_tup_fetch AS numeric) / (idx_tup_fetch + seq_tup_read) AS idx_tup_pct FROM pg_stat_user_tables WHERE (idx_tup_fetch + seq_tup_read)>0 ORDER BY idx_tup_pct;

Returns output like:

       relname        | seq_tup_read | idx_tup_fetch |      idx_tup_pct       
----------------------+--------------+---------------+------------------------
 schema_migrations    |          817 |             0 | 0.00000000000000000000
 user_device_photos   |          349 |             0 | 0.00000000000000000000

serdarb

Set-ExecutionPolicy RemoteSigned

$mongoDbPath = "C:\MongoDB" 
$mongoDbConfigPath = "$mongoDbPath\mongod.cfg"
$url = "http://downloads.mongodb.org/win32/mongodb-win32-x86_64-2008plus-2.4.9.zip" 
$zipFile = "$mongoDbPath\mongo.zip" 
$unzippedFolderContent ="$mongoDbPath\mongodb-win32-x86_64-2008plus-2.4.9"

if ((Test-Path -path $mongoDbPath) -eq $True) 
{ 

zmilojko

using System;
using System.Net.Sockets;
using System.Net;
using System.Text;
using System.Threading;

namespace UDPer
{
    class UDPer
    {

mookid8000

namespace Web.Installers
{
    public class MongoInstaller : IWindsorInstaller
    {
        public void Install(IWindsorContainer container, IConfigurationStore store)
        {
            container
                .Register(AllTypes.FromThisAssembly()
                              .BasedOn<IIndexCreationTask>()
                              .WithService.Base(),

pithyless

// jQuery Headers support for $.ajax

$.ajax({
        beforeSend: function(xhrObj){
                xhrObj.setRequestHeader("Content-Type","application/json");
                xhrObj.setRequestHeader("Accept","application/json");
        }
        type: "POST",
        url: "/article",
        processData: false,