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import socket
import select
from logzero import logger

# python forwarder.py localhost:1337 ipinfo.io:80
# curl -v http://localhost.com:1337 -H "Host: ipinfo.io"

# video: https://www.youtube.com/watch?v=32KKwgF67Ho

class Forwarder:

jrelo

ELF Format Cheatsheet

Introduction

Executable and Linkable Format (ELF), is the default binary format on Linux-based systems.

Compilation

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" VIM Configuration File
" Description: Optimized for C/C++ development, but useful also for other things.
" Author: Gerhard Gappmeier
"

" set UTF-8 encoding
set enc=utf-8
set fenc=utf-8
set termencoding=utf-8
" disable vi compatibility (emulation of old bugs)

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#!/usr/bin/perl

use strict;
use warnings;

unless (scalar @ARGV == 1) {
    die "Parameter needed, please pass ctid as parameter";
}

my $ctid = $ARGV[0];

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# implementation of AES as used by https://aesencryption.net
#
# (c) 2018 Bernd Busse

from cryptography.hazmat.primitives.ciphers import Cipher
from cryptography.hazmat.primitives.ciphers.algorithms import AES
from cryptography.hazmat.primitives.ciphers.modes import CBC

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#!/usr/bin/perl
######################################################################
# killcx :
#
# Close a TCP connection under Linux.
#
# (c) Jerome Bruandet - <floodmon@spamcleaner.org>
#
# version 1.0.3 - 18-May-2011
#

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#!/bin/bash
#
BASE=/tmp
PID=$BASE/app.pid
LOG=$BASE/app.log
ERROR=$BASE/app-error.log

PORT=11211
LISTEN_IP='0.0.0.0'
MEM_SIZE=4

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#!/bin/bash
##############################################################################
#
#
# FILE             : linux-explorer.sh
# Last Change Date : 04-07-2016
# Author(s)        : Joe Santoro
# Date Started     : 15th April, 2004
# Email            : linuxexplo [ at ] unix-consultants.com
# Web              : http://www.unix-consultants.com/examples/scripts/linux/linux-explorer

jrelo

Download Audio from YouTube

-i - ignore errors

-c - continue

-t - use video title as file name

--extract-audio - extract audio track

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Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore