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OSS Leftovers

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  • Jitsi Meet – Free Video Conferencing

    Jitsi Meet is fully encrypted, so everything you tell your participants is safe. And since no accounts are created, no personal information can be leaked either. However, if you choose to NOT generate a password for your meeting and the meeting name is something that can be easily guessed, someone might attend who you did not invite. Therefore, you should use a password for extra security. Read more about the security of Jitsi at “Jitsi Meet Security & Privacy.”

  • Startup DarwinAI says interest in its open-source project that helps identify coronavirus in x-rays growing

    Waterloo startup DarwinAI and researchers from the University of Waterloo are confident its open-source project, COVID-Net, and a sprinkle of AI could help radiologists spot COVID-19 in patients much faster and provide deeper insights into patients’ symptoms.

    While the Canadian Association of Radiologists has made it clear that the final diagnosis of COVID-19 infection should be confirmed by a positive RT-PCR test, not a CT chest scan, Dr. Alexander Wong, lead researcher on the project, said the additional information from CT chest scans can be hugely beneficial for radiologists.

  • How an Open-source Headless CMS Can Help Remote Newsrooms

    To cope with operational disruptions during the COVID-19 pandemic, many industries have been forced to embrace remote work. The news industry is no exception. Media organisations around the world have turned off the lights in their newsrooms and sent reporters and editors into isolation at home.

    But as anyone following the coronavirus story can attest, news has not stopped during this period of disruption. On the contrary, more news is being produced and consumed than ever before, even as newsrooms stay dark. How has a business long reliant on facetime excelled during this work-from-home era?

  • Managed OpenStack cheaper than self-managed?

    Outsourcing OpenStack operations can significantly accelerate the OpenStack deployment process. Although most organisations are successful with the initial roll-out of the cloud, many struggle to operate it effectively post-deployment. Under certain circumstances, a fully managed OpenStack can also be a cheaper option than the self-managed one. We have recently published a webinar in which we demonstrated a detailed cost analysis of both options. We have also created an interactive TCO (total cost of ownership) calculator which anyone can use to play with the numbers.

    But hold on a second. What is “managed OpenStack”? And how can it be cheaper than a self-managed one?


    In case organisations cannot afford to manage OpenStack by themselves, they should consider outsourcing OpenStack operations to a trusted managed service provider. Canonical is one such provider, offering managed services for OpenStack at the best possible price. When choosing Canonical’s Managed OpenStack option the cloud is designed, deployed and maintained by Canonical’s team of cloud experts. However, at any given time organisations can take control of their cloud back, avoiding additional costs and vendor lock-in.

    So when is it more economical to go with Canonical’s Managed OpenStack than with the self-managed option? In order to answer this question, organisations should use the TCO calculator to evaluate yearly operational cost of Canonical-managed and self-managed options. Canonical offers managed services for OpenStack at the price of $4,275 per host. This makes the pricing model clear and fully predictable. Whenever it is cheaper to outsource OpenStack operations to a trusted service provider, organisations should always consider it as an option.

  • Define and optimize data partitions in Apache Cassandra

    Cassandra Query Language (CQL) uses the familiar SQL table, row, and column terminologies. In the example diagram above, the table configuration includes the partition key within its primary key, with the format: Primary Key = Partition Key + [Clustering Columns].

    A primary key in Cassandra represents both a unique data partition and a data arrangement inside a partition. Data arrangement information is provided by optional clustering columns. Each unique partition key represents a set of table rows managed in a server, as well as all servers that manage its replicas.

  • Open Source Security Podcast: Episode 195 - Is BPG actually insecure?

    Josh and Kurt talk about the uproar around Cloudflare's "Is BGP safe yet" site. It's always interesting watching how much people will push back on new things, even if the new things is probably a step in the right direction. The clever thing Cloudflare is doing in this instance is they are making the BGP problem something anyone can understand. Also send us your funny dog stories.

  • Hackers break into open-source Android mobile platform LineageOS

    Hackers have broken into the core infrastructure of LineageOS, a free and open-source operating system for smartphones, tablet computers and set-top boxes, based on the Google Android mobile platform.

    In a tweet, the company admitted the breach happened on Saturday night and it was detected well within time before the attackers could do any harm.

    "Around 8PM PST on May 2nd, 2020 an attacker used a common vulnerabilities and exposures (CVE) in our saltstack master to gain access to our infrastructure," said the company.

    "We are able to verify that: Signing keys are unaffected, Builds are unaffected, Source code is unaffected," added LineageOS.

  • Hackers break into open-source Android mobile platform LineageOS

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.