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Resources

• Pfctl man page (apple.com)
• Pf.conf man page (apple.com)
• How to secure your Mac when using it on wireless networks (sarfata.org)
• Pf on OS X 10.7 (zomo.co.uk)
• OpenBSD packet filter (PF): Real life example (daemon-notes.com)
• Firewalling with OpenBSD's PF packet filter (rlworkman.net)
• PF (OpenBSD) (readthedocs.org)
• PF rules (kernel-panic.it)

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TL;DR: Using an old Raspberry Pi hosted at home in conjunction with CloudFlare and DuckDNS as $1/yr web hosting.

After cPanel hiked its prices, the hosting company I've been using went out of business. I looked for some shared hosting options. They ranged from $30 to $60 a year. That's much more than I want to pay (especially coming from a much better deal with my previous host). My solution is to host them at home on a Raspberry Pi.

I chose a Pi as my hardware versus a spare laptop, since a laptop would cost me at least $30 in electricity in a year. The Pi on the other hand will cost about $1 in electricity. The problem with hosting at home is my IP address will change from time to time. So I had to get a little creative.

I setup DuckDNS to track my IP address. http://example.duckdns.org points to my home IP address and there's a cron job on my Pi that updates my DuckDNS account every 5 minutes. So when my IP address changes, http://example.duckdns.org gets updated automatically.

I pointed my nam

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CDPATH

Overview

This will allow you to include additional directories to what cd will look at for completions. From the bash man page:

The search path for the cd command. This is a colon-separated list of directories in which the shell looks for destination directories specified by the cd command.

Usage

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<?php

try {
  $user = get_user_from_database($emailFromLoginForm); // pseudo

  if ($user->password === md5($plainTextPasswordFromLoginForm)) {
    // We've identified that the password in the database is a md5 hash, so
    // we'll salt and hash the plain-text password and save it
    $saltedPassword = password_hash($plainTextPasswordFromLoginForm, PASSWORD_DEFAULT);
    $user->password = $saltedPassword; // pseudo

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Resize VDI

Note: sudo cfdisk and df -h can come in handy to identify disks, etc. See there output below which will help identify how to adapt the commands.

df -h output:

Filesystem                   Size  Used Avail Use% Mounted on
udev                         980M     0  980M   0% /dev
tmpfs                        201M  3.4M  197M   2% /run

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#!/bin/sh -e

for attr in $(seq 0 1); do
  for fg in $(seq 30 37); do
    for bg in $(seq 40 47); do
      printf "\033[$attr;${bg};${fg}m$attr;$fg;$bg\033[m "
    done
    echo
  done
done

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When a user's session expires and they're on a page that uses ajax requests, you need to set up something to gracefully handle reauthenticating. In this example, we prompt the user and redirect them to the login page.

For Laravel, in your auth filter:

<?php
Route::filter('auth', function()
{

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#!/bin/bash
#
#         _/_/_/  _/_/_/  _/_/_/_/
#      _/          _/    _/
#     _/  _/_/    _/    _/_/_/
#    _/    _/    _/    _/
#     _/_/_/  _/_/_/  _/
#
#    Uses ffmpeg to generate
#    animated gifs from mov

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THE BOY WHO LIVED

Mr. and Mrs. Dursley, of number four, Privet Drive,
were proud to say that they were perfectly normal,
thank you very much. They were the last people you’d
expect to be involved in anything strange or
mysterious, because they just didn’t hold with such
nonsense.

Mr. Dursley was the director of a firm called

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describe("anyOtherFunctionName", function() {
  it("should not use indexOf", function() {
    var body = anyOtherFunctionName.toString();
    expect(/indexOf/.test(body)).toBe(false);
    expect(anyOtherFunctionName("a", "I am a hacker")).toBe(2);
  });
  it("should return a number", function() {
    expect(typeof anyOtherFunctionName("a", "I am a hacker")).toBe("number");
  });
  it("should return the index of the first occurence of a string", function() {