antonioaguilar

Configure Git to use a proxy

##In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

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alias wget='wget -q --no-check-certificate'

# so that we can install virtualbox via apt-get
for x in xenial xenial-security xenial-updates; do
  egrep -qe "deb-src.* $x " /etc/apt/sources.list || echo "deb-src http://archive.ubuntu.com/ubuntu ${x} main universe" | tee -a /etc/apt/sources.list
done
echo "deb http://download.virtualbox.org/virtualbox/debian xenial contrib" | tee -a /etc/apt/sources.list.d/virtualbox.list
wget https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | apt-key add -

apt-get update

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FROM node
RUN mkdir -p /usr/src/app
COPY index.js /usr/src/app
EXPOSE 8080
CMD [ "node", "/usr/src/app/index" ]

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- name: Ensure hostname set
  hostname: name={{ inventory_hostname }}
  when: not inventory_hostname|match('(\d{1,3}\.){3}\d{1,3}')

- name: Ensure hostname is in /etc/hosts
  lineinfile:
    dest=/etc/hosts
    regexp="^{{ ansible_default_ipv4.address }}.+$"
    line="{{ ansible_default_ipv4.address }} {{ ansible_fqdn }} {{ ansible_hostname }}"

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Software for the Project:

Raspbian Wheezy Debian Linux
Win32Disk Imager
The CanaKit comes with a pre-loaded SD card that includes the same version of Debian Wheezy that I used for this project.  However, in an effort to get a little more speed out of the system, I used the 95MB/s Sandisk extreme listed above. It seemed to help, but I did not bench mark it beyond observation. 

Anyway, lets get down to building a Raspberry Pi Web Kiosk.

Step 0: Get all of the hardware.
Step 1: Get all of the software.

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Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.8.3 darwin/amd64.

A list of valid GOOS values

(Bold = supported by go out of the box, ie. without the help of a C compiler, etc.)

• android
• darwin

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// XORCipher - Super simple encryption using XOR and Base64
//
// Depends on [Underscore](http://underscorejs.org/).
//
// As a warning, this is **not** a secure encryption algorythm. It uses a very
// simplistic keystore and will be easy to crack.
//
// The Base64 algorythm is a modification of the one used in phpjs.org
// * http://phpjs.org/functions/base64_encode/
// * http://phpjs.org/functions/base64_decode/

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/* Polyfill indexOf. */
var indexOf;

if (typeof Array.prototype.indexOf === 'function') {
    indexOf = function (haystack, needle) {
        return haystack.indexOf(needle);
    };
} else {
    indexOf = function (haystack, needle) {
        var i = 0, length = haystack.length, idx = -1, found = false;

antonioaguilar

### KERNEL TUNING ###

# Increase size of file handles and inode cache
fs.file-max = 2097152

# Do less swapping
vm.swappiness = 10
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2

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#!/usr/bin/env bash
# memusg -- Measure memory usage of processes
# Usage: memusg COMMAND [ARGS]...
#
# Author: Jaeho Shin <netj@sparcs.org>
# Created: 2010-08-16
############################################################################
# Copyright 2010 Jaeho Shin.                                               #
#                                                                          #
# Licensed under the Apache License, Version 2.0 (the "License");          #