rskelley9

#!/bin/sh

case "$(uname -s)" in
    Linux*)     sys=Linux;;
    Darwin*)    sys=Mac;;
    CYGWIN*)    sys=Cygwin;;
    MINGW*)     sys=MinGw;;
    *)          sys="UNKNOWN:$(uname -s)"
esac
echo ${sys}

rskelley9

#!/bin/sh

if [ -f "`find . -name .DS_Store`" ] ; then
	if [ ! -f "`git rev-parse --is-inside-work-tree`" ] ; then
		echo "no git repository found"

		while true; do
    	read -p "Do you wish to initialize git repository in this folder $(echo $(pwd))?" yn

    	case $yn in

rskelley9

params = {}
## Using string interpolation in where clauses is always dangerous

## BAD (Strings unescaped)
params[:firstname] = "'cat' OR lastname='Kelley'"
User.find(:first, conditions: "firstname = #{params[:firstname]}")
#=> AR Relation matching conditions

## GOOD (Escaped/Parameterized via Hash or Array)
User.find(:first, conditions: {firstname: params[:firstname]})

rskelley9

class ApplicationController < ActionController::Base
  prepend_before_filter :authenticate_user!
  private

  ## Tell client not to cache the response
  def client_will_not_cache_response
    response.headers["Cache-Control”] = “no-cache, no-store” 
    response.headers[“Pragma”] = “no-cache”
    response.headers[“Expires”] = “Fri, 01 Jan 1990 00:00:00 GMT”
  end

rskelley9

class ApplicationController < ActionController::Base …

    private

    def client_will_not_cache_response
        response.headers["Cache-Control”] = “no-cache, no-store” 
        response.headers[“Pragma”] = “no-cache”
        response.headers[“Expires”] = “Fri, 01 Jan 1990 00:00:00 GMT” 
    end
end

rskelley9

echo -e "\nScan LAN for other computers.\n"
if [ -n ""$@"" ];  then
    ip=$(/sbin/ifconfig $1 | grep 'inet ' | awk '{ print $2}' | cut -d"." -f1,2,3 )
    nmap -sP $ip.1-255
else
    echo "Enter Interface parameter ex:"
    echo -e "\t./scannetwork.sh $(ifconfig -lu | awk '{print $2}')\n"

    echo "Available interfaces: "
    for i in $(ifconfig -lu)

rskelley9

Aliases

# Get local computer IP address for LAN network
alias myip="ifconfig | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p'"

# Public facing ip
alias myippub='wget -qO- icanhazip.com'

# Get mac address for en0

rskelley9

if ! type "$brew" > /dev/null; then
  echo "homebrew is not installed, please install homebrew"
else
  if ! type "$curl" > /dev/null; then
    echo "curl is not installed, please install homebrew"
  else
    if ! type "$jq" > /dev/null; then
      echo "jq is not installed, please install homebrew"
    else
      if [ -z "$2" ]; then

rskelley9

List the hosts on your LAN, their MAC addresses and IP's and then count them:

```
$ arp -an | tee >(wc -l)
```

rskelley9

About

I recently relocated for new employment. I've been staying in an extended stay hotel for about 3 weeks now. The hotel I'm staying in gives its guests free Wifi access. However, it requires users to accept terms and conditions on a splash page via browser interface before they can use the network. This makes it difficult to use my Chromecast with the network, as it doesn't have a means of accessing that splash page. While I could call the IT help line, I decided to explore a work-around.

Like many networks, my hotel's network attempts to improve security by using MAC address filtering. Luckily, Mac OS X (10.4 - 10.10) makes it very easy to spoof your network card's MAC address.

Here's how to add a devices like Chromecast, AppleTV, Roku to a wireless network that requires a browser to authenticate and accept terms and conditions.

Before You Start