Developing Alexa Skills

In this article we'll explore how to add some custom skills to your Alexa powered device. The material in this blog post was tested on an Echo Dot - however Amazon recently enabled Alexa on most Android powered smartphones so the barrier for entry to developing these skills has been lowered significantly. I actually ended … Continue reading Developing Alexa Skills

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Nugget Post: Reactive Functions to parse nested objects

Note this article assumes familiarity with the Observer Pattern / Reactive Programming as described here: http://reactivex.io/ Some APIs return complex nested JSON objects. For example, take this cleaned up sample response from ElasticSearch (which incidentally is used to build the "Data Table" visualization): https://gist.github.com/dvas0004/8f3427955a5bb21213c864d30094d072 Note the structure of the object. Within the top level "aggregations" object … Continue reading Nugget Post: Reactive Functions to parse nested objects

How we built the CyberSift Attack Map

Recently we launched a small site called the "CyberSift Attack Map" hosted at http://attack-map.cybersift.io. Any one involved in the InfoSec industry will be instantly familiar with the site:   It's basically a map of attacks which either trip some rule in a signature based IPS such as SNORT, or land in a honeypot. In this article we'll list … Continue reading How we built the CyberSift Attack Map

Super Simple React Native Redux Example

Inspired by http://blog.tylerbuchea.com/super-simple-react-redux-application-example/ In this article we explore the barest of solutions to get started with React Native + Redux. The only pre-requisite to the below is to have "create-react-native-app" installed (https://facebook.github.io/react-native/docs/getting-started.html) Setup create-react-native-app superSimple cd superSimple npm install --save redux react-redux redux.js https://gist.github.com/dvas0004/43f876637561ffba08f18a57c66a2ab3   App.js https://gist.github.com/dvas0004/b1d9d236661d2b77ebdc59774064ea27 Notes In most create-react-native-app + redux tutorials that I researched, … Continue reading Super Simple React Native Redux Example

From JQuery to ReactJS

I have previously worked with ReactJS - most notably during my Master's dissertation, however the main Javascript library I work with when working for clients and companies still remains the venerable JQuery. This is changing as more and more organizations I interact with move to more modern frameworks like Angular and ReactJS. Where to start … Continue reading From JQuery to ReactJS

Elasticsearch REST API: JEST upsert

I've already written about tips and tricks when using the Elasticsearch Java API. The Elasticsearch REST API has been going from strength to strength, and it seems that going forward the Elasticsearch team will focus more on the REST API than the native JAVA client. At the time of writing however, the official java REST library … Continue reading Elasticsearch REST API: JEST upsert

Simple DNS Sniffer in GoLang

Golang makes it really simple to code some otherwise arduous tasks. In this case, we needed to sniff raw network data, filter out DNS data, and send the DNS queries and responses to an Elasticsearch cluster. The resulting code is surprisingly simple thanks to libraries such as GoPacket, as you can see below: https://gist.github.com/dvas0004/3d280f95a83a3084b314ea208f19f9e9 The … Continue reading Simple DNS Sniffer in GoLang