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IBM/Red Hat Leftovers

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Red Hat
  • What is a sysadmin? | Enable Sysadmin

    What does the term "sysadmin" or "system administrator" mean to you? What does a sysadmin do? How do you know you are one?

    Existential questions like this seldom have concrete answers, and the answers that do present themselves can be pretty fluid. The answers are also significantly different for different people and depend upon their work experience.

  • Automating performance analysis

    As a system administrator, have you ever found yourself in this situation? Your production systems have been humming along nicely when, out of the blue, the phone rings. "What just happened!? Everything slowed to a crawl, but now it’s fine again?"

    Where to even start? Your systems are complex. There are so many moving parts potentially contributing to the problem that root causes can be anywhere—and worse, they can be transient. There are databases, networked storage, firewalls, applications, JVMs, VMs, containers, kernels, power management, backups, live migrations, database schema changes—and that’s just on your development laptop! It’s even more complex in production datacenters and the cloud, where you’ve got it all operating on large, real-life data sets.

    Red Hat Enterprise Linux (RHEL) provides tools that can help. Let’s look at a simple command line technique and tools that will help you as the first responder to a performance emergency—beyond dashboards, beyond top(1) and iostat(1) and pidstat(1) and netstat(1) and vmstat(1) and so on and so forth—to help you to gain deeper understanding and find root causes.

  • Automate Kubeflow deployment

    Kubeflow is an end-to-end machine learning platform on Kubernetes that provides components and rich features to compose machine learning pipelines. The new release, v1.3, came out recently, and you can deploy the new release on the IBM Kubernetes Service. The deployment involves Kubernetes cluster
    creation, local environment setup, deployment, and configuration, and if you are not familiar with these operations, they can look intimidating. One mistake in these procedures can lead to a painful debugging, reconfiguration, and even scrap and redo. Don’t worry, we’ve got you. Resources to lower the barrier for you: IBM Cloud Schematics to deploy multi-user Kubeflow v1.3, which integrates with App ID as a login mechanism, and an Auto-Kubeflow repository.

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.