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today's howtos

Submitted by Roy Schestowitz on Tuesday 11th of May 2021 07:26:02 PM Filed under
HowTos

     

  • Enrique Ocaña González: GStreamer WebKit debugging by instrumenting source code (3/3)

    This is the last post on the instrumenting source code series. I hope you to find the tricks below as useful as the previous ones.

    In this post I show some more useful debugging tricks. Don’t forget to have a look at the other posts of the series:

  • Brendan Gregg: Poor Disk Performance

    People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. What's good for one user may be bad for another. There are also cases where I can't tell either: The tools only provide clues for further analysis.

  • [Solved] system-config-firewall: command not found

    When you get the error message "system-config-firewall: command not found" on your CentOS Server while trying to configure the firewall on the shell, then the text interface version of the firewall configuration utility is missing.

  • Use the Alpine email client in your Linux terminal | Opensource.com

    Email is an important communications medium and will remain so for the foreseeable future. I have used many different email clients over the last 30 years, and Thunderbird is what I have used the most in recent years. It is an excellent and functional desktop application that provides all the features that most people need—including me.

    One of the things that makes a good system administrator is curiosity—and I have more than my share. Over the last few months, I have become dissatisfied with Thunderbird—not because of anything particularly wrong with it. Rather, after many years, I grew tired of it. I was curious about whether I could find an email client to provide a better (or at least different) experience than Thunderbird and be at least as efficient.

  • scan multiple log subdirectories for the latest log files and tail them
  • Finding the right cost for bcrypt/pbkdf2

    Foreman uses bcrypt with variable cost as the default password hashing approach, but I learned that bcrypt is not approved for passwords by NIST the other day. Before finishing my patch, I wanted to see what are the sane iteration counts for PBKDF2-HMAC-SHA algorithm which is approved by NIST. Here are results to give you rough estimation from my Intel NUC i3 8th gen running i3-8109U, a CPU from 2018...

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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.

  • 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.

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