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today's howtos

Submitted by Roy Schestowitz on Tuesday 19th of January 2021 11:58:02 PM Filed under
HowTos
  • Consuming logs from a Kafka topic using syslog-ng

    There is no official Kafka source in syslog-ng, but because this question comes up often enough, I created one. It is just a temporary workaround using the program() source, but it works. It involves Java and installing Kafka manually, but it was fast and reliabe in my tests: ingesting 50,000–100,000 messages a second on my laptop in a resource-constrained virtual machine.

    Of course, I also tried a more resource-friendly solution, using kafkacat to consume log messages from a Kafka topic. While it worked perfectly on the command line, I could not get it to work with the program() source in syslog-ng.

    If you read my blog last week about using templates in the topic() parameter of the Kafka destination, the test environment will look familiar. The only notable difference is that the tool used to consume logs from Kafka is now called within syslog-ng from a program() source.

  • Simple Linux Backups with Rsync command - LinuxTechLab

    Having a comprehensive data protection policy in place is now a fundamental practice to help ensure your data manages to weather all the storms that can be thrown at it. Saying that it should be done is the easy part, actually doing it gets more complex, and laborious, depending on the policy in place and what standards and laws the organization needs to adhere to. Fortunately, for Linux users there a tool exists that makes backing up data a breeze, and it can all be done from the command line.

  • Set up a Linux cloud on bare metal | Opensource.com

    Virtualization is one of the most used technologies. Fedora Linux uses Cloud Base images to create general-purpose virtual machines (VM), but there are many ways to set up Cloud Base images. Recently, the virt-install command-line tool for provisioning VMs added support for cloud-init, so it can now be used to configure and run a cloud image locally.

  • Quick and dirty ipmitool tutorial
  • Environment Modules - Michael Jansen, Drive By Coding

    Environment Modules is one of those open source projects that I wish more people would know and use. I always wonder why tools like asdf don’t provide support for it instead of rolling their own implementation. So lets increase awareness.

  • Easy frugal installation [Ed: updated]

    EasyOS is downloaded as an image file for a USB-stick, that you can boot on your PC. This will get you up and running with EasyOS, however, you might then want to install Easy to the hard drive in the computer. That is what this page is about.

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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.

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  • 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.

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