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This article explains how to use the nginx HttpLimitReqModule to limit the number of requests for a given session. This is useful, for example, if your site is hammered by a bot doing multiple requests per second and thus increasing your server load. With the ngx_http_limit_req_module, you can define a rate limit, and if a visitor exceeds this rate, he will get a 503 error.

Docker and microservices-based architectures have expanded our horizons with respect to how the industry builds and supports applications at scale, says Corey Quinn, Director of DevOps at FutureAdvisor and an early developer behind SaltStack. Nonetheless, Quinn, in his LinuxCon and ContainerCon North America talk — called “Heresy in the Church of Docker” — will preach caution and present an alternative view of the containerization craze.

"I really appreciate you helping me out," I said as I followed the industrial/organizational psychology expert to the coffee machine, seeking help with a feedback survey for my newly formed associate engagement program. "I've never done anything like this before, so I have absolutely no clue what I'm doing." She looked incredulous. "I'm convinced you know exactly what you're doing," she said. read more

Kirigami, KDE’s lightweight user interface framework for mobile and convergent applications, which was first announced in March, is now publicly released! This framework allows Qt developers to easily create applications that run on most major mobile and desktop platforms without modification (though adapted user interfaces for different form-factors are supported and recommended for optimal user experience). It extends the touch-friendly Qt Quick Controls with larger application building blocks, following the design philosophy laid out in the Kirigami Human Interface Guidelines.

Fundamentally, all major software, even open source, was designed before image-based containers. This means that putting software inside of containers is fundamentally a platform migration. This also means that some programs are easy to migrate into containers, while others are more difficult. read more

Less is more, from EE to SE The future of Java Enterprise Edition is on many developers' minds. After the community came to the conclusion that the platform’s progress has come to a standstill, a plethora of initiatives has arisen with the goal of encouraging Oracle to pick up the work on Java EE 8 again.…

Back in 1998 when I discovered Linux and open source, I never would have believed that I would make a career out of this. Back in those days I didn't have a clue about what I wanted to do, but I knew I wanted it to involve technology in some way. read more

The latest Android vulnerability to fret about isn't limited to any particular device, or any specific firmware version. That's because it doesn't start with Android at all, but with Qualcomm, the company that provides internal components for hardware manufacturers. Lots of them. In this case, 900 million Android smartphones with Qualcomm inside are at risk, and fixing them will be no easy task.

Released in 1995, Java went from a language running in a browser to the ubiquitous platform of today, one which underpins the entire industry and with deep tentacles in enterprise IT.

Perfectron’s “INS8349A” Mini-ITX runs on 6th Gen “Skylake-S” CPUs, and offers triple displays, 8x USB, 4x SATA, optional M.2, and PCIe and mini-PCIe. With its 14nm-fabricated 6th Generation Core based INS8349A Mini-ITX board, Perfectron has leapfrogged several generations of Intel Core chips since its previous 3rd Gen “Ivy Bridge” INS8346B.

Never before has any open source project generated as much attention on the international stage as Bitcoin. But Bitcoin, a cryptocurrency platform void of allegiance to any nation or financial institution, is just the first of an expanding and more sophisticated class of open source blockchains expected to revolutionize the exchange of all digital assets -- money, real estate, music and intellectual property --  in future commerce.

I love my Raspberry Pi, which I use for many different projects. But when I saw Kickstarter campaign for 64-bit PINE64 I could not resist, so I pre-ordered one for myself.

PostgreSQL is a powerful object-relational Database released under an OpenSource BSD-style license. PostgreSQL is well suited for large databases and has many advanced features, so it positions itself in the enterprise database segment. This tutorial will show the installation of PostgreSQL and its web-based administration interface phpPgAdmin on Ubuntu 16.04.

Back in my Windows days, disk maintenance was a task that filled me with dread. I remember the endless hours spent scanning, defragmenting and scanning again.

Up until now, the focus has been interacting with Git as a user. In this article I'll discuss the administration of Git, and the design of a flexible Git infrastructure.

When I started using the vi text editor, I hated it. I thought it was the most painful and counter-intuitive editor ever designed. But I'd decided I had to learn the thing, because if you're using Unix, vi was everywhere and was the only editor you were guaranteed to have access to. That was back in 1998, but it remains true today—vi is available, usually as part of the base install, on almost every Linux distribution in existence. read more

Historically, Linux media creation has gotten a bad rap. The reasons why vary, but usually it's due to legacy applications from powerful media companies that sell expensive software. In this article, I’ll dive into the truth about Linux media creation. I’ll also focus on what software usually holds folks back and how they compare to their open source alternatives.

A driver for the Surface 3 touchscreen controller is expected to be made available in the final release of the 4.8 Linux kernel, allowing users to remove Windows 10 and install a Linux-based platform like Ubuntu on Microsoft’s 10.8-inch tablet.

Guest columnist Rob Reilly checks out Next Thing’s PocketChip, a pocket-sized Debian based all-in-one computer, in this HackerBoards hands-on first look. ? ? Is that a Debian all-in-one PC in your Pocket? by Rob Reilly ? From Chip to PocketChip Next Thing Chip I’ve experimented with Next Thing’s Chip SBC, connected to a big screen […]

Why settle for boring numbers and static graphs to describe your open source project when you can dynamically display the movements and activity within your project? Gource is an amazing and flexible tool that can be used to display activity from your repositories using a video visualization that people love. Gource can be redistributed and modified under the terms of the GNU General Public License (version 3 or later).