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Software: OpenStack Charms 17.08, PiCluster 2.2 and More

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  • OpenStack Charms 17.08 release!

    The OpenStack Charms team is pleased to announce that the 17.08 release of the OpenStack Charms is now available from jujucharms.com!

    In addition to 204 bug fixes across the charms and support for OpenStack Pike, this release includes a new charm for Gnocchi, support for Neutron internal DNS, Percona Cluster performance tuning and much more.

  • Go Serverless with new PiCluster 2.2

    I am pleased to introduce the new release of PiCluster! In PiCluster 2.2, there is now support to deploy functions! With this new feature, applications can spin up containers themselves and retrieve data from the PiCluster server. Let’s explore how this works.

    When a function is finished running, the container is automatically deleted and the output is stored on the server. When the application requests the data from the server, the data is removed as well.

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  • Plasma publictransport rewrite – Part II

    Last time we heard the publictransport applet was being re-written was almost a year back now. Since then, it has indeed gone through some sorts of rewrite, but at the Randa meetings, 2017, this has taken a whole new course.

  • Spam filtering with Rspamd

    Running one's own mail system on the Internet has become an increasingly difficult thing to do, to the point that many people don't bother, even if they have the necessary skills. Among the challenges is spam; without effective spam filtering, an email account will quickly drown under a deluge of vile offers, phishing attempts, malware, and alternative facts. Many of us turn to SpamAssassin for this task, but it's not the only alternative; Rspamd is increasingly worth considering in this role. Your editor gave Rspamd a spin to get a sense for whether switching would be a good thing to do.

    SpamAssassin is a highly effective tool; its developers could be forgiven for thinking that they have solved the spam problem and can move on. Which is good, because they would appear to have concluded exactly that. The "latest news" on the project's page reveals that the last release was 3.4.1, which came out in April 2015. Stability in a core communications tool is good but, still, it is worth asking whether there is really nothing more to be done in the area of spam filtering.

  • Finding driver bugs with DR. CHECKER

    Drivers are a consistent source of kernel bugs, at least partly due to less review, but also because drivers are typically harder for tools to analyze. A team from the University of California, Santa Barbara has set out to change that with a static-analysis tool called DR. CHECKER. In a paper [PDF] presented at the recent 26th USENIX Security Symposium, the team introduced the tool and the results of running it on nine production Linux kernels. Those results were rather encouraging: "it correctly identified 158 critical zero-day bugs with an overall precision of 78%".

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.