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today's howtos

Submitted by Roy Schestowitz on Sunday 17th of October 2021 10:55:00 AM Filed under
HowTos
  • How to enable debug logs in Nginx

    While working with the Nginx web server, one of the most common tasks is checking the debug logs. Knowing how to enable and interpret the debug logs is quite helpful for troubleshooting application or server issues as these logs provide detailed debugging information. In Nginx, you can enable the debug logs for examining the upstream interactions and internal behavior.
    Nginx keeps track of its events in two logs: error logs and access logs. Before moving ahead, let’s understand the basic concept of error logs and debug logs.

  • How to fix “FirewallD is not running” error on CentOS

    Are you looking for a solution to fix the “FirewallD is not running” error? We are here to assist you. In Linux-based operating systems such as CentOS, FirewallD is a firewall management utility. It acts as a front-end for the netfilter framework of the Linux kernel, offering firewall functionality. It supports firewall zones, bridges, IPv6, IPv4, and other ipsets for networks.

    If the FirewallD utility is not enabled or your system is missing this tool, then you may encounter a “FirewallD is not running” error in your CentOS terminal. In this post, we will check three different solutions for fixing the “FirewallD is not running” error on a CentOS system. So, let’s start!

  • How to enable and disable systemd-resolved in Ubuntu - Anto ./ Online

    This guide will show you how to enable and disable the systemd-resolved service in Ubuntu.

  • How to do Debian 11 Network configuration

    Debian is a Linux-based distribution known for its power, stability and security. Network configuration is a broad process to set up controls of a network, manage the network flow and operation to support the network communication for a specific organization or network owner. Multiple configuration settings are included while configuring the network: Router Configuration, Host Configuration, Software Configuration.

    In this descriptive post, network configuration of Debian 11 is explained using command line and GUI as well.

  • How to delete empty lines using sed

    There are two possible methods to delete empty lines from a text file using sed; the methods are listed below and are discussed in detail in the upcoming part of this guide.

  • How To Install ROS Noetic on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install ROS Noetic on Ubuntu 20.04 LTS. For those of you who didn’t know, ROS (Robot Operating System) is an open-source robotics software framework and tools for robotics applications. It helps design complex software without having a good understanding of the hardware. The architecture ROS Noetic supported are amd64, armhf, and arm64.

    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 ROS Noetic on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to Renew DHCP IP on Debian 11

    The DHCP or Dynamic Host Configuration Protocol is used to assign devices random IP addresses automatically. When using a server or router with a DHCP server, clients don’t have to set their IP addresses manually. They need to request it from the DHCP. The IP addresses provided by DHCP are known as Dynamic IP addresses, while IP addresses set manually are known as Static IP addresses.

  • How to ZIP a folder in Ubuntu

    Sometimes, you want to share a directory or folder that contains a bundle of files with someone. In this situation, compressing the folder in a .zip file format is a good approach. Zip is the commonly used and popular archive file format in many operating systems for file compression that provides lossless data compression features.

    The zip file behaves as a container that is composed of more compressed files or folders. There are more file formats such as .tar extension, also common practice to use for Linux systems, but still zipping folders using .zip extension is ubiquitous and a perfect choice.

    Using Zip file format for file compression takes less disk space and saves the network bandwidth while you transfer a file from one machine to another system. Zipped file format can be transferred more quickly as compared to uncompressed files. These compressed zip folders can easily be extracted using supportive utilities in Linux, macOS, and Windows operating systems.

    You will learn in this guide how to zip a folder in Ubuntu Linux operating system. We will explain two methods for zipping a folder; one method is zip a folder using command-line and the other using the Gnome graphical interface environment. All steps we will cover in this article have been implemented on Ubuntu 20.04 LTS focal fossa distribution.

  • How to use vim editor – Complete Guide

    Vim editor is among the best editors used in the command-line interface to open, edit and save files, vim editor can be used for editing simple text files as well as different code files of different languages. Vim is the updated version of Vi editor that’s why vim is abbreviated as “Vi improved”. It is highly efficient and also known as IDE (integrated development environment) because of its popularity in the programming editors. Vim has different shortcuts to perform tasks, it has different modes and bindings.

  • List all Users in Ubuntu

    The Linux administrator can easily interact with the system and manage all users using useful commands in a Linux system.

    Ubuntu is the most widely used Linux distribution that offers more useful features for system administrators to list all users and manage their daily tasks. Therefore, the administrator can easily grant privileges to a user on a file or folder and assign limited permission for each user to secure your system’s data.

    We will explore in this article how to list all users in the Ubuntu Linux system using a command-line environment. All commands are implemented on the Ubuntu 20.04 LTS focal fossa in this article. Let us dive into the details!

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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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