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Linux 5.13 and More

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  • Linux 5.13 Introducing Misc Cgroup Controller - Phoronix

    The Linux 5.13 development kernel is introducing a new "misc" cgroup controller. The misc cgroup controller is to be used for resources that are controlled by simply counting / limiting the number of resource instances in a scalar manner.

    This cgroup controller can be used for purposes like tracking/limiting the number of enclaves on the system based upon hardware constraints, The initial user of this misc cgroup controller is for address space IDs used for virtual machine memory encryption.

  • Linux 5.13 Lands Support For Randomizing Stack Offsets Per Syscall - Phoronix

    One of the new security features in Linux 5.13 is the ability to randomize kernel stack offsets at each system call. This optional feature is now mainlined.

    Randomizing the kernel stack offset per-system-call is intended to make it more challenging for rogue actors to carry out stack-based attacks on the Linux kernel. This has been in the works for over two years and was inspired by PaX's "RANDKSTACK" feature but the actual implementation has taken a different approach. Simply put though this randomizing of the kernel stack at each system call is to fend off exploits relying on kernel stack determinism.

  • Linux is Turning 30 Years Old & Printk Is Still Being Refined - Phoronix

    The printk() function dates all the way back to the original Linux kernel release and even with Linux turning thirty years old this week, work on printk is not over.

    Back during Linux 5.10 last year a long overdue revamp of printk() began to land and now with Linux 5.13 more of that work is crossing the finish line. In 5.10 the ring-buffer became fully lock-less but still relying on a log buffer lock.

  • Linux kernel vulnerability exposes stack memory, causes data leaks | ZDNet

    Disclosed by Cisco Talos researchers on Tuesday, the bug is described as an information disclosure vulnerability "that could allow an attacker to view Kernel stack memory."

    The kernel is a key component of the open source Linux operating system. The vulnerability, tracked as CVE-2020-28588, was found in the proc/pid/syscall functionality of 32-bit ARM devices running the OS.

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.