Linux

JBoss EAP 7 was recently released, and brings with it a whole host of new features and support, such as support for Java EE 7, Undertow (a highly scalable web server), reduced port usage, graceful shutdown, improved GUI and CLI management, and much more. Go ahead and download it, unzip, and run bin/standalone.sh and check out all these great features. What's that? It didn't work? Did you check that your JRE is compatible? Are there outstanding incompatibility or security issues...

Last week, I attended a DevNation talk, "Getting Started with C# on Red Hat Enterprise Linux and OpenShift", given by Scott Hunter from Microsoft. The first thing Scott asked was, "Does anyone know how to recover from hitting CTRL-ALT-F8 in Red Hat Enterprise Linux?" Apparently, an hour or two before his presentation, Scott accidentally hit that key sequence while trying to use a keyboard shortcut for Hyper-V which was running his Red Hat Enterprise Linux VM on his Microsoft Surface...

http://www.youtube.com/watch?v=0qQ1bGoNcEs From May 10th to May 14th we arrived at Florianópolis (with a short travel to Campinas) to do what we love the most: talk to developers. We from Red Hat Developers had an amazing time with the developer community gathered together at both The Developer's Conference (TDC) Florianópolis and DevCamp. Red Hat delivered a lot of great content to the audience, with speakers presenting dozens of talks in the Java EE, Java, Cloud Computing, Architecture, DevOps and .NET tracks...

On developers.redhat.com you can find short, focused guides to help you start developing with a number of Red Hat technologies. With the recent release of Red Hat Software Collections (RHSCL) 2.2, a number of Get Started guides have been updated to use the newest software collections, such as Node.js 4.4, Python 3.5, and Ruby 2.3. These guides give you the steps you need to install the software and get to a simple "Hello, World" in a few minutes. The guides...

I recently had an interesting problem which served as a great learning experience. It involves hair-pulling levels of frustration, vicious finger-pointing, and an unexpected ending --- not a TV Soap opera episode, just a day in the life of a developer. It all started with a REST API I had built for a customer proof of concept that started refusing requests after an arbitrary period of time. Nothing was unusual in the codebase of the REST API --- it was...

Introduction The GNU Toolchain is a collection of programming tools produced by the GNU Project. The tools are often packaged together due to their common use for developing software applications, operating systems, and low level software for embedded systems. This blog is part of a regular series covering the latest changes and improvements in the components that make up this Toolchain. Apart from the announcement of new releases however, the features described here are at the very bleeding edge of...

Kubernetes is a great tool for container orchestration on a server cluster. It makes it easy to deploy lots of containers in a resource-efficient way using a simple interface. But one thing that is not easy to do with Kubernetes is to deploy it locally. Kubernetes is designed to run on an actual cluster, which means using it only on a single computer is tough. I know. You're probably wondering why you'd want to use Kubernetes locally in the first...

Sometimes, software just goes together. Linux, the Apache Web server, MySQL, and PHP, the four ingredients of the LAMP stack, which revolutionized data centers and made open source a big deal two decades ago, are probably the most famous example. But there are lots of others. Here's another open source software stack you should know about in our present age of cloud and big data: the Elastic Stack, or ELK. Based on Elasticsearch, Logstash and Kibana, ELK is a fully...

Red Hat Linux was the first version of Linux I ever used. Until succumbing to The Cult of Macintosh a few years ago, I was a faithful Red Hat (and later Fedora) junkie. Hell, I still have my 15 year old Red Hat 7.2 discs. But, as a developer, it has been tough to do any substantial work with Red Hat Enterprise Linux (RHEL) unless working for an organization that has a license. That is, until relatively recently, when Red...

In my first .NET core post, I set out on a journey to conquer the new world of .NET Core (formerly DNX) on Red Hat Enterprise Linux (RHEL). In my ignorance I believed I would do a short post on firing up RHEL, installing .NET Core, and then converting an application from .NET to .NET Core before adding it as a build job to a new TeamCity instance. The best laid plans seem to be the ones that get me...

Despite spending plenty of time in Red Hat Linux while I was young, I have become an unabashed Windows environment super-user/programmer. Still, it’s hard to discount the multitude of ways that the *nix community stands ahead and alone, so when Microsoft and Red Hat announced their partnership to bring .NET to Linux, I had no choice but to take notice. As an experiment, I am going to go through setting up Red Hat Enterprise Linux (RHEL) and .NET Core to...

The ASPNET Music Store application was built to demonstrate MVC and Entity Framework running on the newest .NET platform, including .NET Core. If you visit the link, you'll see that various platforms are mentioned, including Mono. However, you'll also notice that the instructions are dated: references to dnx and dnu are throughout the README file. This blog post will show how to bring MusicStore up-to-date and run it on Red Hat Enterprise Linux (RHEL). (If you don't have RHEL, you...

MongoDB has evolved into one of the most popular open source "NoSQL" databases—so-called because they dispense with the tabular storage schema of relational databases like MySQL and Postgres. NoSQL databases offer a variety of advantages in many cases The biggest advantage is that MongoDB databases don't require developers to define schemas before adding data to a database. Instead, they use a flexible document-based model, similar to Python dictionaries or Ruby hashes. With MongoDB, you don't need to spend time creating...

Ready to develop container application in just over 4 minutes? Since I started playing around with OpenShift in its various forms, such as Online with cartridges and then later as containerized images, nothing has gotten me more excited than the availability of the Red Hat Container Development Kit (CDK). This kit has made it possible to easily gain access to a full, product based installation of OpenShift as you would interact with it in application development in just minutes. While...

Red Hat is committed to making .NET a First Class citizen on Red Hat Enterprise Linux (RHEL). To that end, we're working furiously to make sure everything's perfect before we make .NET available by simply running: yum install rh-dotnetcore10 In the meantime, I can't wait. No, literally, I can't wait --- you don't need to either. You can hop over to Microsoft's .NET download site and get .NET for RHEL. (What? You didn't get your zero-dollar developer copy of RHEL...

This is the second installment in a series about using Red Hat Identity Management (IdM) on Red Hat Enterprise Linux and Fedora (using the upstream FreeIPA project). As described in part 1, IdM makes it very easy to build an enterprise-grade identity management solution, including a full enterprise PKI solution providing complete x509 certificate life cycle management. Most organizations start with a simple self-signed Certificate Authority (CA) certificate, perhaps generated using OpenSSL; with a little configuration and a few commands...

As .NET Core matures into a production-ready software product, more and more information is becoming available regarding what to expect. While the changes haven't been too big to understand, there are breaking changes and they do require that developers get some education before forging ahead. That applies to Entity Framework Core 1.0 (EF Core) as much as any other component of what is broadly termed ".NET Core". Granted, EF Core is not a part of .NET Core -- and neither...

How would you like a development environment on Red Hat Enterprise Linux (RHEL) set up in less than a minute? Having multiple versions of software installed at the same time? Is there a simpler and faster way than manually searching for and then installing separate packages? The answer to all three questions is: Red Hat Software Collections (RHSCL). This technology has been around for a few years, but not everyone is familiar with it. This article reveals its potential and...

NGINX is a powerful web server that can easily handle high volumes of HTTP traffic. Each time NGINX handles a connection, a log entry is generated to store some information this connection like remote IP address, response size and status code, etc. The complete set of logged information with more details can be found here. In some cases, you may be more interested in storing the body of requests, specifically POST requests. Lucky, the NGINX ecosystem is rich, and includes...

Red Hat has always given operations teams value in deploying Red Hat Enterprise Linux (RHEL), and that's no different in a containerized world. But, as a developer, why should I build on RHEL? Does the underlying operating system really affect me? It might if you want to: get your app to production faster work on new products, not maintain old ones avoid compatibility issues at scale (And yes RHEL is available at no cost for development use.) 1) Take Your...

If you are a Windows developer and you want to start writing .NET code in Linux, and you're not sure where to start, this article should help you understand some of the choices regarding your development environment. I’ll be using the Red Hat Enterprise Linux Developer Suite (RHEL) as my Linux of choice, which is freely downloadable for development use. It's also worth mentioning that how you actually install RHEL will affect your development experience. The up-front work to get...

The Internet of Things is a very new "thing" to us, but when we think of it, we've had access to the internet for a long period of time. We use "things" in day to day life that have been making our life easier for as long as we can remember. Let's take a common light bulb as an example. It consumes energy and produces light, which helps us everyday. Technology improvements have stripped down the consumption of resources to...

I'm a .NET developer at heart, and I want to write C# code that runs natively in Linux - Red Hat Enterprise Linux (RHEL), to be specific. So, I hopped over to the Red Hat .NET Developers web site, installed the CDK and was up and running in short order. I had a no-cost developer's copy of RHEL running on my PC and was writing .NET code. Life was good. I had my instance of RHEL inside a Vagrant Box...

Node.js v4 is now available on Red Hat Enterprise Linux 6 and 7 using Red Hat Software Collections 2.2 Beta. The Get Started with Node.js v4 guide has you covered even if you don’t know how to use Red Hat Software Collections (RHSCL) or how to access the beta. After enabling the RHSCL 2.2 Beta software repository on your system, you will be able to install node, npm, and up to 200 additional Node.js packages with a simple yum command...

Red Hat Developer Toolset has already been available for nearly four years and Red Hat Software Collections has been out for two and a half. We've seen excellent adoption of these as more and more developers and customers utilize the newer technologies that become available. So, this week we announced more with these two new beta releases. New news Red Hat Software Collections 2.2 Beta includes: new open source databases (MariaDB 10.1, MongoDB 3.2 and PostgreSQL 9.5) new open source...