marcostolosa

title	reviewers	content_template
kubectl Cheat Sheet	bgrant0607 erictune krousey clove	templates/concept

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# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
  config.vm.box = "offensive-security/kali-linux"

  # Create a forwarded port
  config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a private network. In VirtualBox, this is a Host-Only network

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Keybase proof

I hereby claim:

• I am marcostolosa on github.
• I am marcostolosa (https://keybase.io/marcostolosa) on keybase.
• I have a public key ASDVE7ivh7BXVlqX9tS7wzqu1mbWku58KlT-y34wvJ9Kywo

To claim this, I am signing this object:

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#!/bin/bash

ip_file=~/.ip
if [ ! -f "$ip_file" ]; then touch $ip_file; fi

last=$(cat "$ip_file")
current=$(dig +short myip.opendns.com @resolver1.opendns.com) || exit
if [ "$last" = "$current" ]; then exit; fi

mail -s "[IP from Everywhere]" <your_email>@server.com <<< "$current"

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Vagrant.configure("2") do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.

  # Every Vagrant virtual environment requires a box to build off of.
  config.vm.box = "precise64"

  # The url from where the 'config.vm.box' box will be fetched if it
  # doesn't already exist on the user's system.

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Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

• vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
• vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

• vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

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# read more here http://tautt.com/best-nginx-configuration-for-security/

# don't send the nginx version number in error pages and Server header
server_tokens off;

# config to don't allow the browser to render the page inside an frame or iframe
# and avoid clickjacking http://en.wikipedia.org/wiki/Clickjacking
# if you need to allow [i]frames, you can use SAMEORIGIN or even set an uri with ALLOW-FROM uri
# https://developer.mozilla.org/en-US/docs/HTTP/X-Frame-Options
add_header X-Frame-Options SAMEORIGIN;

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Bash is a name of the unix shell, which was also distributed as the shell for the GNU operating system and as default shell on Linux and Mac OS X. Nearly all examples below can be a part of a shell script or executed directly in the shell.

Read more here.

#!/bin/bash
# First line of the script is shebang which tells the system how to execute
# the script: http://en.wikipedia.org/wiki/Shebang_(Unix)
# As you already figured, comments start with #. Shebang is also a comment.

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Bash Getting started

Example

#!/usr/bin/env bash

NAME="John"
echo "Hello $NAME!"

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Docker Cheat Sheet

Table of Contents

• Why Docker
• Prerequisites
• Installation
• Containers
• Images
• Networks