today's howtos

posted by Roy Schestowitz on Jun 06, 2023

• Install OpenBSD in Qubes OS

  Here is a short guide explaining how to install OpenBSD in Qubes OS, as an HVM VM (fully virtualized, not integrated).

• The Linux kernel will fix some peculiar argv usage in execve(2)

  In a conventional call to execve(2), the argv argument is a pointer to an array that will become the executed program's argv, with the array terminated with a NULL element (in the grand C fashion, there is no explicit 'length' parameter passed). The first (0th) element of this array is the nominal name of the program and the remainder are the command line arguments. Since all programs have some name, this array is normally at least one element long. However, the execve(2) interface (plus C) allows for two additional variations on the value of argv here.

• 10 Practical Examples of Using the Gzip Command in Linux

  Compression is a very commonly performed operation by users to save disk space as well as reduce time and bandwidth while transferring large amounts of data over the network using gzip utility.

  gzip stands for the GNU zip and it is a very popular compression and decompression utility. One of the primary reasons for its popularity is its high compression ratio and speed, which means the compressed data remains the same after decompressing.

• How to Use Bash For Loop with Examples in Linux

  In programming languages, Loops are essential components and are used when you want to repeat code over and over again until a specified condition is met.

  In Bash scripting, loops play much the same role and are used to automate repetitive tasks just like in programming languages.

• How to Fix “bash syntax error near unexpected token” in Linux

  Bash (Bourne Again Shell) is a command-line program that accepts commands provided and executes them. It takes Linux commands directly typed into it interactively from a keyboard or from a shell script file.

  Bash is used in Linux and Mac systems to run the system and it is the default shell in a majority of modern Linux distributions such as Ubuntu, Debian, Fedora, Rocky Linux, and AlmaLinux to mention a few.

• How To Install Flatpak on Fedora 38

  In this tutorial, we will show you how to install Flatpak on Fedora 38. For those of you who didn’t know, Flatpak is a universal package manager designed to work seamlessly across various Linux distributions. It enables users to install, update, and run software applications in an isolated environment, known as a sandbox.

• How to Change Directory in Linux Using cd Command

  Discover how to change directories in Linux using the powerful cd command. Master absolute and relative paths, and navigate the file system effortlessly.

• How to Get Wayland to Work on Nvidia Graphics Cards

  Although Nvidia has theoretically had full support for Wayland since they released their drivers in late 2021, the road hasn't necessarily been smooth.

• How to Comment Multiple Lines in Vim Editor

  Vim is one of the most popular and influential command-line text editors.

• The Top 10 Lesser Known Linux Power Commands That You Won’t Be Able to Live Without

  Intro As Linux system administrators, we continuously delve into the boundless ocean of Linux commands to manage and control systems with precision. Some commands are pretty standard and widely known. However, a few lesser-known Linux power commands can make life significantly easier for sysadmins.

• Hidden Treasures: Managing Secrets with Kubernetes

  Kubernetes has become the dominant container orchestration system for deploying and managing containerized applications. It provides a wide range of features and functionalities that enable DevOps teams to deploy, scale, and manage applications easily.

• Seamless Blogging: Deploying WordPress on Kubernetes Clusters

  Blogging has become an important tool for businesses and individuals to reach their audience. It's an effective way to share ideas, market products, and connect with people.

• Embracing PaaS: Setting up OpenShift Origin for Your Docker Projects

  In today's fast-paced business environment, companies need to be agile and responsive to changing market needs. One way to achieve this is by leveraging cloud computing and Platform as a Service (PaaS) offerings.

• Expand and Contract: Scaling Your Kubernetes Cluster Effectively

  Kubernetes is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications. It has become increasingly popular in modern software development due to its ability to automate the deployment and management of scalable, distributed systems.

• From Code to Deployment: Building and Launching Apps on OpenShift with Docker

  Building and launching applications has become a complex process in today's digital world. The rise of containerization has made it easier to package an application and its dependencies into a single container that can run on any platform.

• Discovering Docker APIs and SDKs: A Comprehensive Introduction

  Docker is a powerful containerization technology that allows developers to bundle their applications and dependencies into portable containers that can be run anywhere, regardless of the underlying hardware or operating system.

• Streamlined Construction: Building Docker Images Using APIs

  Docker has revolutionized the way modern software is developed and deployed. It is a containerization platform that allows developers to package their applications along with their dependencies into a single, portable unit called a Docker image.

• Seamless Deployment: Launching Docker Containers with APIs

  Docker Containers have revolutionized the way we deploy and manage applications. Unlike traditional Virtual Machines that require a full-fledged operating system and consume heavy resources, Docker Containers enable us to package applications into portable, lightweight, and self-sufficient units that can run anywhere.

• Mastering Container Management: Performing Operations Using Docker APIs

  In today's fast-paced and dynamic world of software development, containerization has become an essential practice for managing applications. Containerization allows developers to create and deploy applications more quickly, efficiently, and securely.

• Converting UTC Date and Time to Local Time in Linux

  When managing a Linux system, you may frequently come across timestamps recorded in Coordinated Universal Time (UTC). Understanding and converting these timestamps to your local time can be essential, particularly when troubleshooting system events or running time-specific commands.

• dig and nslookup commands on Linux

  Hello, friends. In this post, you will learn the basics of the dig and nslookup commands on Linux. These commands, although simple, are part of powerful network utilities. Introduction to dig and nslookup commands The tools for querying network actions are important for testing solutions and troubleshooting in everyday system use.