lfzawacki

Generic Component API

An easy way to extend Bigbluebutton functionality by including an iframe of another service in the presentation area.

This code is currently implemented in this branch: https://github.com/lfzawacki/bigbluebutton/tree/generic-component

Code for the POC quiz application: https://github.com/lfzawacki/react-quiz-component

Configuring

lfzawacki

Construction

Challenge description

Added at 14:40 UTC: to save some guessing, flag is inside the listening Python script.

Hello test subject # 49277. The next pwning room is not yet complete, so you should just wait here and not enter it until further notice.

ssh testsubject@95.179.148.72
Password: LabRat#49277

lfzawacki

#!/bin/bash
# Re-enable uneeded services for music

pulseaudio -D

sudo service samba start
sudo service saned start
sudo service smbd start
sudo service nmbd start

lfzawacki

• Rails For Zombies: Rails course
• Ruby Monk: Interactive ruby tutorials
• Ruby Koans: More interactive ruby tutorials
• Rails Casts: Rails video tutorials
• Ruby Bookmarks: A good list of ruby links
• Awesome Ruby: Another list of links

lfzawacki

Using local Gemfiles

This is useful if you're working on a project with other developers and want to use different gems locally that you don't have to commit to the repository.

Get the Gemfile.local file

From this repository https://github.com/gerrywastaken/Gemfile.local. The rest the instructions here are mostly based on what is written there with some modifications.

lfzawacki

#!/bin/bash -e

FILENAME=owncloud-8.0.4.tar.bz2
LATEST=https://download.owncloud.org/community/$FILENAME
SHA=https://download.owncloud.org/community/$FILENAME.sha256
PGP=https://download.owncloud.org/community/$FILENAME.asc
INSTALL_PATH=/var/www
OWNCLOUD_USER='www-data'

echo " --- Download and check sha256 sum"

lfzawacki

/*
  Por Lucas Zawacki e galera da oficina de introdução a Arduino

  https://matehackers.org/arduino_day_2015
*/
const int buttonPin = 2;
const int buzzerPin = 11;
const int sensorPin = 4;
const int ledPin = 13;

lfzawacki

class User < ActiveRecord::Base

def self.login_last_month 
  self.select { |u| u.last_sign_in_at && (u.last_sign_in_at + 30.days) >= Date.today }.count
end

end

lfzawacki

In a new Ubuntu Trusty lxc-container:

sudo lxc-create -t ubuntu -n bbb-html5 -- -r trusty

Install BBB090: https://code.google.com/p/bigbluebutton/wiki/090InstallationUbuntu

Install development stuff: https://code.google.com/p/bigbluebutton/wiki/090Developing

Install nodejs

lfzawacki

#!/bin/bash

# Convert lots of *.flac into *.mp3 for consumption in devices without flac support

# Usage is:
# $ cd yourflacfolder
# $ convertmp3
# Files will be created in a new directory

MP3DIR="`basename \"$PWD\"` - mp3"