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Red Hat / IBM

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Red Hat
  • Using Composefs in OSTree

    Early on in the boot some code runs that reads this and mount this directory (called the deployment) as the root filesystem. If you look at this you can see a long hex string. This is actually a sha256 digest from the signed ostree commit, which covers all the data in the directory. At any time you can use this to verify that the deployment is correct, and ostree does so when downloading and deploying. However, once the deployment has been written to disk, it is not verified again, as doing so is expensive.

    In contrast, image-based systems using dm-verity compute the entire filesystem image on the server, checksum it with a hash-tree (that allows incremental verification) and sign the result. This allows the kernel to validate every single read operation and detect changes. However, we would like to use the filesystem to store our content, as it is more efficient and flexible.

  • Delivering event-driven apps with Apache Kafka

    Traditionally, enterprise organizations operate using data-centric integration approaches to connect multiple systems, services and applications. This approach is ideal for maintaining and improving data consistency and integrity across all systems and applications. It also allows moving large amounts of data, connecting to disparate systems, and creating master data fabrics that accommodate multiple data management scenarios.

  • Introducing the Red Hat Academy Talent Network

    At Red Hat, we believe that closing the technology skills gap is vitally important to the future of enterprise software and that the opportunity to do so should be available to all. Red Hat Academy bridges the gap between education and industry by collaborating with academic institutions around the world to provide the next generation of IT talent with free access to a range of Red Hat’s training courses and discounted certification exams.

    With more than 90% of the Fortune 500 using Red Hat products and solutions, individuals with Red Hat skills and knowledge are highly desirable in the job market. Additionally, 93% of hiring managers report difficulty finding sufficient talent with open source skills, up from 87% two years ago. We’re also seeing a greater need to match students who are trained in Red Hat technologies with employers who are seeking open source talent. That’s why we created the Red Hat Academy Talent Network.

  • 7 Layers Finds Out How Kubernetes Complexity Can be Overcome

    Dan Meyer: Hello, I’m Dan Meyer, executive editor at SDxCentral, and welcome to this episode of the 7 Layers podcast. I recently had the chance to speak with Stu Miniman, director of market insights for cloud platforms at Red Hat, to discuss why Kubernetes is so complex, how enterprise IT teams should approach that challenge, and what the vendor ecosystem can do to help deal with that complexity.

  • Red Hat Joins Forces with U.S. Department of Energy Laboratories to Bridge the Gap Between High Performance Computing and Cloud Environments

    Red Hat, Inc., the world's leading provider of open source solutions, today announced it is collaborating with multiple U.S. Department of Energy (DOE) laboratories to bolster cloud-native standards and practices in high-performance computing (HPC), including Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, and Sandia National Laboratories.

  • Observing Life Inside The Open Source Cloud-Native Stack

    As a key trend that has shaped the last decade of cloud in particular, cloud computing evolved to the point where organizations started to consider the possibility of skipping past that cumbersome cloud migration phase. They said, why don’t we just build cloud native then? So they did.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.