alphazo

libnfc supports UUID writable cards and even has some dedicated tools for them.

However it doesn't work with some of the cards found on eBay that are even simpler to use. Sector 0 is unlocked and can be written without any additional commands. libnfc requires a small patch to get it working.

Following has been tested under ArchLinux with modified libnfc 1.5.1, mfoc 0.10.2 and a SCL3711 dongle.

Patch & recompile libnfc

The patch is fairly simple, open libnfc-1.5.1/utils/nfc-mfclassic.c and comment 2 lines (it was lines 384 and 385 for me):

// Try to write the trailer

corsix

Exploiting Lua 5.1 on 32-bit Windows

The following Lua program generates a Lua bytecode program called ignore-unsigned-sga.fnt, which in turn loads a DLL from within an extremely locked down Lua 5.1 sandbox in a program called RelicCOH2.exe. The remainder of this document attempts to explain how this program works by a whirlwind tour of relevent bits of the Lua 5.1 virtual machine.

if string.dump(function()end):sub(1, 12) ~= "\27Lua\81\0\1\4\4\4\8\0" then
  error("This generator requires a 32-bit version of Lua 5.1")
end

local function outer()
  local magic -- In bytecode, the stack slot corresponding to this local is changed

grugq

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

carlossless

Jenkins Port Forwarding (8080 -> 80) with pf on Mavericks/Yosemite

This guide is a fork from this gist. I've added minor adjustments to customise these rules to forward connections from an outsite interface like en0.

Since Mavericks stopped using the deprecated ipfw (as of Mountain Lion), we'll be using pf to allow port forwarding.

1. Create the anchor file

Create an anchor file under /etc/pf.anchors/com.jenkins with your redirection rule like:

alexwilson

/**
 * This is a project designed to get around sites using Cloudflare's "I'm under attack" mode.
 * Using the PhantomJS headless browser, it queries a site given to it as the second parameter,
 *  waits six seconds and returns the cookies required to continue using this site.  With this, 
 *  it is possible to automate scrapers or spiders that would otherwise be thwarted by Cloudflare's 
 *  anti-bot protection.
 * 
 * To run this: phantomjs cloudflare-challenge.js http://www.example.org/
 *
 * Copyright © 2015 by Alex Wilson <antoligy@antoligy.com>

pavel-odintsov

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <unistd.h>

#include <boost/thread.hpp>
#include <sys/mman.h>
#include <poll.h>
#include <arpa/inet.h>

pavel-odintsov

#!/bin/bash

# Interval of calculation in seconds
INTERVAL="1"
 
if [ -z "$1" ]; then
        echo
        echo usage: $0 [network-interface]
        echo
        echo e.g. $0 eth0

pavel-odintsov

#!/bin/bash

# from http://habrahabr.ru/post/108240/
ncpus=`grep -ciw ^processor /proc/cpuinfo`
test "$ncpus" -gt 1 || exit 1

n=0
for irq in `cat /proc/interrupts | grep eth | awk '{print $1}' | sed s/\://g`
do
    f="/proc/irq/$irq/smp_affinity"

googleinurl

<?php

/*
  E d i ç ã o -  2.0 / 29-09-2015
  --------------------------------------------------------------------------------
  [+] AUTOR: Cleiton Pinheiro / Nick: googleINURL
  [+] Blog:  http://blog.inurl.com.br
  --------------------------------------------------------------------------------
 */

windytan

#!/usr/bin/perl
# windytan's pea whistle encoder
# http://www.windytan.com/2015/10/pea-whistle-steganography.html
# (c) 2015 Oona Räisänen
# ISC license

use warnings;
use strict;

my $data          = $ARGV[0] // "OHAI!";