today's howtos

• Easily rename your Git default branch from master to main

  You might say, "I'm all for not using master in master-slave technical relationships, but this is clearly an instance of master-copy, not master-slave."

• How to get IP Address in Linux using Command terminal - Linux Shout

  To connect some local running server application via browser, access FTP server, and many other times we require to know our system Ip address. Thus, if you are running some Linux operating system then here is the way to check out your current IP Address using the command terminal.

• How To Use NMAP

  Nmap (or Nmapper) is a free and open-source network scanner used for analysis, security audits, and network exploration. You use it to discover hosts and services on a computer network by sending packets and analyzing the responses all in an easy-to-use manner. Let us take a look at how to use Nmap.

• How to get the best Arch Linux servers to update your system | Arcolinux.com

  You may have seen me struggle with the Arch Linux servers in one of my videos. Time to dive into the application reflector. Read all about it on your own computer. Type reflector –help in the terminal and read more. Servers speed and service all depend on your own network, your isp, your country’s policy (port blocking) and the servers around you. As a result we have now several aliases to get the best servers out there.

• How to Install Terraform on Ubuntu 20.04

  Terraform is an infrastructure as a code platform developed by HashiCorp. You can simply write code in the human-readable format following HashiCorp Configuration Language (HCL) and deploy it to get the infrastructure in the cloud. Terraform is supported in many cloud providers like Google, Amazon, Alibaba, etc. Here in this article, we are going to install the latest version of terraform on Ubuntu. We are performing terraform installation on Ubuntu 20.04 however you can do the same procedure on all Linux platforms. Also, learn how to use terraform with simple example by launch an ec2 instance and create s3 bucket.

• Operator integration testing for Operator Lifecycle Manager - Red Hat Developer

  Operators are one of the ways to package, deploy, and manage application distribution on Red Hat OpenShift. After a developer creates an Operator, the next step is to get the Operator published on OperatorHub.io. Doing this allows users to install and deploy the Operator in their OpenShift clusters. The Operator is installed, updated, and the management lifecycle is handled by the Operator Lifecycle Manager (OLM).

• Deploy your own Matrix server on Fedora CoreOS - Fedora Magazine

  Today it is very common for open source projects to distribute their software via container images. But how can these containers be run securely in production? This article explains how to deploy a Matrix server on Fedora CoreOS.

• Set up a minimal server on a Raspberry Pi | Opensource.com

  Recently, the microSD (secure digital) card in my Raspberry Pi stopped working. It had been in constant use as a server for almost two years, and this provided a good opportunity to start fresh and correct a few problems. After its initial installation, it began experiencing disk problems and the official Raspberry Pi operating system (OS) received a significant update (and was renamed from Raspbian to Raspberry Pi OS). So I acquired a new microSD card and preceded to rebuild. Although this Raspberry Pi 3 Model B isn't the latest hardware, it is still adequate for running a minimal server for various services. I think my original installation used the full operating system image that includes the graphical user interface and a lot of other software packages unnecessary for my needs. This step-by-step guide shows how I set up my Raspberry Pi with the most minimal configuration to conserve precious system resources.

Chafa 1.6.0: Wider

Here’s another one from the terminal graphics extravaganza dept: Chafa 1.6.0 brings fullwidth character support, so in addition to the usual block elements and ASCII art, you now get some mean CJK art too. Or grab as many fonts as you can and combine all of the Unicode into one big glorious mess. Chafa can efficiently distinguish between thousands of symbols, so it also runs fast enough for animations — up to a point. Since some users want this in environments where it’s not practical to build from source or even to have nice things like GLib, I’ve started adding statically linked builds. These are pretty bare-bones (fewer image loaders, no man page), so look to your steadfast distribution first. Speaking of distributions, a big thank you to the packagers. Special thanks go to Florian Viehweger for getting in touch re. adding it to OpenBSD ports, and Mo Zhou (Debian), Michael Vetter (openSUSE), Herby Gillot (MacPorts), @chenrui and Carlo Cabrera (Homebrew) for getting 1.6 out there before I could even finish this post.

ClusBerry 9500-CM4 – A Raspberry Pi CM4 cluster, industrial style

Raspberry Pi cluster boards / solutions pop-up from time to time. But so far, I think we’ve seen only one based on Raspberry Pi CM4 modules with the upcoming Turing Pi 2 mini-ITX cluster board supporting four of those. TECHBASE has now unveiled a different kind of Raspberry Pi CM4 cluster with ClusBerry 9500-CM4 integrating up to eight Raspberry Pi Computer Module 4 in a DIN-Rail housing for industrial applications.

Rotary Un-Smartphone is a rotary dial phone based on Arduino, 4G LTE module

If you feel nostalgic and misses the days of the rotary dial phone, Sky’s Edge “Rotary Un-Smartphone” is an open-source hardware rotary dial phone controlled by an Arduino board and equipped with a multi-mode 4G/3G/2G module. It’s a bit more advanced that you old rotary phone with recent cellular technology, ePaper & OLED displays, quick dialing buttons, and the rotary dial can both be used to dial full phone number or quickly access your contact list. Also: 42Gears SureMDM Simplifies Setting up Kiosk Mode on Linux Devices