Operating systems, software & hardware
Editor: The ELK stack is made up of three applications - Elasticsearch, Logstash, and Kibana. This article is about the "L" in the ELK stack. A great use for the ELK Stack is the storing, visualization, and analysis of logs and other time-series data. ...
K Means Clustering is an unsupervised learning algorithm that tries to cluster data based on their similarity. Unsupervised learning means that there is no outcome to be predicted, and the algorithm just tries to find patterns in the data. In k means ...
Every time you release a product or service you want to receive feedback from users so you know what they like and what they don’t. Sentiment Analysis can help you. I will show you how to create a simple application in R and Shiny to perform Twitter S ...
Vagrant 1.8 has been released. Comes with support for linked clones and snapshots. Vagrant is a very popular open source application for building and managing development environments. It is developed by HashiCorp, the same company behind several other ...
Just a few hours ago, the developers of Wine announced the release of Wine 1.8. Wine is a software for Linux and other Unix-like operating systems that makes it possible to run Microsoft Windows applications on such systems. The name Wine has no re ...
Editor: If you've been doing packet capture with Wireshark into flat files, take a break! This article shows how to do the same thing using Pyshark, a Python module, and Elasticsearch, a distributed search engine with an HTTP interface. Network packet ...
Last month I wrote about How to store and use webservice keys and authentication details, a summary of the options mentioned in a twitter discussion started by Jennifer Bryan. All of the options in my article really stored the secrets in plain text so ...
In this article, I will show you how to use decision trees to predict whether the birth weights of infants will be low or not. We will use the birthwt data from the MASS library. What is a decision tree? A decision tree is an algorithm that builds a ...
Kibana, being the ‘K’ in ‘ELK’, is the amazing visualization powerhouse of the ELK Stack. We use the software to create nice dashboards that display metrics including page visits, server JVM performance, messages from our client-side application, and t ...
The unsung heroes of log analysis are the log collectors. They are the hard-working daemons that run on servers to pull server metrics, parse log files, and transport them to backend systems such as Elasticsearch and PostgreSQL. While visualization to ...
Editor: This article was originally titled "LetsEncrypt now available in Fedora" and originally published on Fedora Magazine. For correctness, all references to "LetsEncrypt" have been changed to Let's Encrypt. Let's Encrypt recently entered into a pub ...
Editor: Julia is a dynamic programming language for technical computing known for its speed and performance. It's like R, but less popular. Julia vs Python Should we ditch Python and other languages in favor of Julia for technical computing? That's ...
The Mozilla foundation, which is responsible for the Firefox Web browser, has announced that the Sponsored Tiles program, which placed ads in Firefox Directory Tiles, will be discontinued within the next few months. If you have no idea what the Sponsor ...
ZeroDB is a new database application with a very cool feature. At a time when security is foremost in the minds of most people in this digital age, that feature is a must-have for any modern database application that aims to offer complete data securit ...
If you haven't heard of R before, you should know that it’s one of the most popular statistical programming languages in the world, used by millions of people. It's open source nature fosters a great community which helps make data analysis accessible ...
