Language Selection

English French German Italian Portuguese Spanish

Programming Leftovers

Submitted by Roy Schestowitz on Friday 10th of December 2021 10:38:51 PM Filed under
Development
  • Mourning Fredrik "Effbot" Lundh

    Guido van Rossum has posted the sad news that longtime Python contributor Fredrik Lundh has died.

  • drgn: How the Linux Kernel Team at Meta Debugs the Kernel at Scale

    drgn (pronounced “dragon”) is a debugger that exposes the types and variables in a program for easy, expressive scripting in Python. The Linux kernel team at Meta originally built drgn to make it easier to investigate the kinds of difficult Linux kernel bugs that the team encounters at Meta. The team has since added further use cases for it, like monitoring and userspace memory profiling. This blog discusses why we built drgn, how drgn works, how to use it, and what the team would like to do with drgn next.

  • Restartable Sequences "RSEQ" Support Returning To GNU C Library - Phoronix

    Back in 2018 for the Linux 4.18 kernel was introducing the Restartable Sequences system call for allowing faster user-space operations on per-CPU data. By avoiding atomic operations in cases like incrementing per-CPU counters, modifying per-CPU spinlocks, reading/writing to per-CPU ring buffers, and similar, Restartable Sequences can provide a performance advantage. The GNU C Library is landing its revised support for making use of this system call.

    Restartable Sequences has shown nice performance potential and generated interest among developers. Glibc has been working on utilizing Restartable Sequences and the initial code was merged in 2020. More background information on RSEQ can be learned at Efficios.com from their work over the years on this support.

  • Reveal your source code with Jinja2 and Git | Opensource.com

    One of the little ways I've supported the cause is by keeping my personal blog site open from the very beginning. I do this partly to let people see the history of changes behind each page. But I also do it because, when I started using Jekyll, I didn't find many open source Jekyll blogs to learn from. My hope is that keeping my website open and exposing my trials and errors will save someone else a lot of time.

  • Critical RCE Zero-Day Exploit Found in Popular Java Logging Library log4j, Affects Much Of The Internet – CloudSavvy IT

    The bug, tracked by CVE-2021-44228, likely affects almost any Java application using log4j, which is quite a few considering how ubiquitous it is. If your application ever logs a string sent in by a user, it’s probably vulnerable. As far as exploits go, it’s one of the worst ones this year, as it can target basically any server running Java in some fashion (though the primary attack vector may be harder on modern JDK versions, more on that below).

    Essentially, the exploit allows an attacker to send your server any string like the following, and if it logs it somewhere in your app, your server will execute code hosted at that address.

»

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.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6