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In the first article in this series comparing Perl 5 to Perl 6, we looked into some of the issues you might encounter when migrating code into Perl 6. In the second article, we examined how garbage collection works in Perl 6. Here, in the third article, we'll focus on Perl 5's references and how they're handled in Perl 6, and introduce the concepts of binding and containers. read more

Isn’t monitoring just monitoring? Doesn’t it include logging, visualization, and time-series data? The terminology around monitoring has caused a lot of confusion over the years and has led to some poor tools that tout the ability to do everything in one format. Observability proponents recognize there are many levels for observing a system. Metrics aggregation is primarily time-series data, and that’s what we’ll discuss in this article. read more

Internet works with IP numbers and to get from a domain name to its IP number address the Domain Name System DNS is used. You can set up your own name service or use, for example, your hosting provider's name service. This tutorial shows how to run your own nameserver setup with ISPConfig.

Most images on the Web are small or medium sized, since otherwise users need to wait longer before their favorite web pages load. However, sometimes you need to find a larger version of an image, but the search doesn’t bear fruit. Any bitmap image can be scaled up or down in an image editor (such […]

Networks, cyberattacks, and the strategies used to stop them are continuously evolving. Security deception is an emerging cyber-defense tactic that allows researchers and information security professionals to observe the behavior of attackers once they've gained access to what they think is a business network.

News briefs for August 28, 2018.

In Linux, if you want to print a file's content on stdout, the first command that comes to mind is cat. However, there may be times when the requirement is to remove certain part of the file and print only the rest of the content. You'll be glad to know there exists a tool - dubbed cut - that lets you do this.

Only thing left now is a Supreme Court bid Over eight years of feuding between Oracle and Google over the use of Java code in Android may be nearing its end following a Tuesday court ruling.…

Nexcom’s compact, IP67 protected “VTC 1911-IPK Telematics IoT Gateway” runs on a Bay Trail Atom and offers CAN 2.0B, dual mini-PCIe and SIM slots, GPS, 2x GbE, SATA, and more. It’s resistant to shock, vibration, humidity, and -40 to 70°C temperatures. With flooding and sea-level rise on the rise due to climate change, there will […]

What's the practical risk with 3D-printed firearms today? In this opinion piece, Kyle explores the current state of the art.

In a complex IT environment, even the smallest tasks can seem to take forever. Sprawling systems are hard to develop, deploy, and maintain. Business demands only increase complexity, and IT teams struggle with management, availability, and cost. How do you address this complexity and while meeting today's business demands? There is no doubt that Ansible can improve your current processes, migrate applications for better optimization, and provide a single language for DevOps practices across your organization. read more

Teach Mutt yet another trick: how to filter messages in your Inbox with a simple macro.

Wave the the CPU trust flag if you're feeling safe enough Linux v4.19-rc1, release candidate code published on Sunday, allows those building their own kernel or Linux distribution to choose whether or not to trust the CPU hardware random number generator, a decision that has become complicated in the wake of the revelations about government surveillance over the past five years.…

Linux command-line aliases are great for helping you work more efficiently. Better still, some are included by default in your installed Linux distro. This is an example of a command-line alias in Fedora 27: read more

VIDEO: A new open-source license addendum, Commons Clause, has lawyers, developers, businesses, and open-source supporters fighting with each other.

In this new series, we'll focus on DevOps monitoring and observability tools. Over the next few weeks, we’ll explore metrics aggregation and monitoring, log aggregation, alerting and visualizations, and distributed tracing. Alternatively, you can download the entire open source guide to DevOps monitoring tools now. Let’s get started. read more

Ibase launched an “SI-324” signage PC that runs Ubuntu or Windows on a Ryzen Embedded V1000 SoC with up to 32GB DDR4, 4x 4K HDMI 2.0, 2x GbE, 2x USB 3.0, mini-PC and M.2 expansion, and remote EDID management. Ibase’s rugged SI-324 was announced in brief back in February as one of the first products […]

News briefs for August 27, 2018.

MCC has launched a stackable “MCC 118” voltage measurement DAQ HAT for the Raspberry Pi with eight ±10 V inputs and sample rates up to 100 kS/s. Norton, Mass. Based Measurement Computing Corp. (MCC) has released a $99 measurement DAQ HAT for the Raspberry Pi that is optimized for single point and waveform voltage.

This tutorial shows the steps to install Seafile into a website on an ISPConfig 3 server. The server that is used for this setup uses Ubuntu 18.04, but the steps outlined in this guide should work similarly on other OS.