Joshua Arulsamy jarulsamy

Merging Rubygems and Bundler

1.sh:

#!/bin/sh
set -eux
rm -rf rubygems bundler
git clone https://github.com/rubygems/rubygems
git clone https://github.com/rubygems/bundler

How to increase the root partition size on Fedora

Boot up with an Fedora Live USB stick.

Run vgs to check if there's any space:

$ sudo vgs
  VG     #PV #LV #SN Attr   VSize    VFree
  fedora   1   3   0 wz--n- <237.28g    0

GNU/Linux UFW VPN kill switch tutorial

This is a quick guide for setting up a kill switch using UFW (Uncomplicated FireWall). It is assumed you are using OpenVPN and optionally Network-Manager with network-manager-openvpn.

1. (Optional) IP Addresses

Before we can start we're going to need the IP address (or the IP addresses) of your VPN so that we can whitelist those later on, write them down. They are obviously going to be different for every VPN and VPNs with multiple servers, so I'll leave this up to you.

2. Install UFW

On some systems UFW is installed and enabled by default (Ubuntu, for example). Installation procedure is going to be different for every distribution of GNU/Linux, but it's usually something like

Dependencies

playonlinux
lib32-libldap, lib32-gnutls (multilib needed)
ttf-ms-fonts
Battle.Net client from this webpage https://us.battle.net/account/download/ (windows version)

Installation

Open PlayOnLinux

Install

# Install dependencies
sudo yum install -y java-1.8.0-openjdk screen

# Create a new unprivileged user for minecraft
useradd -r -m -d /opt/minecraft minecraft

# Create the directory that will house our minecraft instances

sudo su --shell /bin/bash minecraft

git commit stats

Commands to get commit statistics for a Git repository from the command line -
using git log, git shortlog and friends.

What is this all about?

This tutorial will turn your Raspberry PI into a simple Bluetooth audio receiver, which plays music through connected speakers. It's like a regular car audio system, but it can be used anywhere and it's a good value.

   Audio source (i.e. smartphone) 
                |
                v
 (((  Wireless Bluetooth Channel  )))
 |

	#!/usr/bin/env bash

	set -Eeuo pipefail
	trap cleanup SIGINT SIGTERM ERR EXIT

	script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

	usage() {
	cat <<EOF
	Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

	#!/usr/bin/env python
	import sys
	import os

	def nextSetting(f):
	keySize = ord(f.read(1))
	key = f.read(keySize)
	valueSize = ord(f.read(1)) + (ord(f.read(1))*256)
	value= f.read(valueSize)
	#sys.stdout.write ('(k=%3d,v=%4d,pos=%6s) %s = %s\n' % (keySize, valueSize, hex(f.tell()), key, value))