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A variable is something which can hold a value of a particular type - it could be an integer, character, or even floating point. However, there's one limitation of variables: they can only hold a single value at any given time. This tutorial shows the basics of using Arrays, which can hold multiple values.

The National Security Agency develops advanced hacking tools in-house for both offense and defensewhich you could probably guess even if some notable examples hadn't leaked in recent years. But on Tuesday at the RSA security conference in San Francisco, the agency demonstrated Ghidra, a refined internal tool that it has chosen to open source. And while NSA cybersecurity advisor Rob Joyce called the tool a "contribution to the nation's cybersecurity community" in announcing it at RSA, it will no doubt be used far beyond the United States.

For over a decade, VMware has been accused of illegally using Linux code in its VMware ESX bare-metal virtual machine hypervisor. A German court has dismissed the case, but the struggle may not be over.

In this guide, we're going to show you how to Dockerize the Laravel project with PHP-FPM, MySQL database, and the Nginx web server using the Docker Compose on the Ubuntu Server 18.04. We're going to create a new docker image for the Laravel Project, and then create the docker-compose.yml script that contains some services including, the App/Laravel itself, Nginx web server, and MySQL database.

Barix has launched Barionet 1100, 400, and 200 programmable I/O controllers that run OpenWrt Linux on a MIPS-based MediaTek MT6720A SoC and offer Lua scripting and a “FLEXA” cloud service. Switzerland based Barix, which is primarily known for audio streaming technology such as the new AudioPoint 3.0, has offered its Barionet line of programmable I/O […]

I've had several opportunities to do IT work in less-developed and remote areas, where internet coverage and technology access aren't at the high level we have in our first-world cities. Many people heading off to undeveloped areas ask me for advice on preparing for the local technology landscape. Since conditions vary greatly around this big world, it's impossible to give specific advice for most areas, but I do have some general suggestions based on my experience that may help you. read more

Unfortunately for the security of our applications, we usually don't "build security in" with development; instead we wait until the last possible moment and slap in security measures, typically forming a police-type security department and creating adversarial feelings between the security folks and the developers. read more

In the last article in this series, I shared some ways to teach kids to program with Raspberry Pi. In theory, there is absolutely nothing stopping an adult from using resources designed for kids, but you might be better served by learning the programming languages that are in demand in the job market. Here are three programming languages you can learn with the Raspberry Pi. read more

News briefs for March 6, 2019.

Will our digital lives leave a fossil record? Or any record at all?

Do you love to cook? Looking for a better way to manage your recipes using Fedora? GNOME Recipes is an awesome application available to install in Fedora to store and organize your recipe collection. GNOME Recipes is an recipe management tool from the GNOME project. It has the visual style of a modern GNOME style […]

I have to admit, it took me a rather embarrassingly long time to really get into Linux as a daily driver. One thing I recall from these years in the wilderness was how strange it was to watch open source types get so worked up about text editors. It wasn't just that opinions differed. Disagreements were intense. And you'd see them again and again. read more

Google has launched a sandwich-style, $150 “Coral Dev Board” with an RPi-like 40-pin header that runs Linux on an i.MX8M with an Edge TPU chip for accelerating TensorFlow Lite. The USB stick version sells for $75. Google unveiled its embedded oriented Edge TPU version of its Tensor Processing Unit AI chip in July. More details […]

How to use ncurses to manipulate your terminal screen.

In previous articles, including How does rootless Podman work?, I talked about Podman, a tool that enables users to manage pods, containers, and container images. read more

News briefs for March 5, 2019.

As countless schools, libraries, and families have proven, the Raspberry Pi is a great way to expose kids to programming. In the first four articles in this series, you've learned about purchasing, installing, and configuring a Raspberry Pi. In this fifth article, I'll share some helpful resources to get kids started programming with the Raspberry Pi. read more

OctoberCMS is a free and open source Content Management System (CMS) and web platform based on the PHP programming language and Laravel web application. In this tutorial, we will be going to explain how to install OctoberCMS on Ubuntu 18.04 server.

In 2012, after experiencing performance and scaling limitations with the CI/CD solution we were using, my team at Yahoo started searching for another platform. We didn’t find a solution that met our rapidly growing developer needs, so we built Screwdriver. It is the product of our CI/CD journey at scale, lessons gathered along the way, and enormous amounts of feedback from our internal developers. After seeing the value Screwdriver added, we decided to open source it in 2016 to share our solution with the global DevOps community. read more

Newark Element14 and Avnet announced a Raspberry Pi based “SmartEdge Industrial IoT Gateway” with 2x Ethernet, WiFi/BT, CAN, serial, and optional Zigbee, Z-Wave, or LoRa. Avnet, which last year launched the Zynq UltraScale+ based ‘Ultra96 96Boards CE SBC, announced plans for the Avnet SmartEdge Industrial IoT Gateway at the CES show in early January. At […]