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today's howtos

Submitted by Roy Schestowitz on Friday 4th of June 2021 06:12:37 PM Filed under
HowTos
  • How to Check Internet Speed in Linux Using Speedtest CLI

    Many times to check our Internet speed we used to use a speedtest website to measure our network speed. Instead of using the utility from the web now, you have the option to use it from the terminal using Speedtest CLI.

  • How to Install Nagios Client (NRPE) on Ubuntu 20.04 – TecAdmin

    NRPE is a client side application for executing Nagios plugins. The Nagios server communicate with remote system using this plugin. NRPE must be installed on all the remote systems needs to monitor by Nagios server. Nagios server sends instruction to the NRPE server using check_nrpe plugin.

  • Optimize Java serverless functions in Kubernetes

    This significantly impacts serverless function development and the Java deployment model. This is because many enterprise developers chose alternatives such as Go, Python, and Nodejs to overcome the performance bottleneck—until now, thanks to Quarkus, a new Kubernetes-native Java stack. This article explains how to optimize Java performance to run serverless functions on Kubernetes using Quarkus.

  • SSH to Port Other Than 22: How to Do It (with Examples)

    In this guide, we will explore how to change the SSH server port. In addition to, we will show you how to use the ssh command to connect to port other than the default 22.

    By default, the SSH server runs on port 22. However, there are occasions when it is run in a different port.

  • The USB Boot Drive and Best Boot Utility
  • Install Google Chrome on Debian Sid / Bullseye 11 / Buster 10 – If Not True Then False

    This is quick guide howto install install Google Chrome browser on Debian Sid / Bullseye 11 / Buster 10. Best way to install and keep up-to-date with Google Chrome browser is use Google’s own APT repository. All Google-Chrome-Stable, Google-Chrome-Beta and Google-Chrome-Unstable are available.

  • How to Install Damn Vulnerable Web Application on CentOS 8

    DVWA also called "Damn Vulnerable Web App" is a free and open-source vulnerable web application. It is designed for security professionals to test their skills and understand web application security processes. It provides a platform to experiment with new penetration testing tools and practice new exploitation techniques to exploit common vulnerabilities.

    In this post, we will show you how to install a Damn Vulnerable Web App on CentOS 8 server.

  • How To Install Review Board on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Review Board on Ubuntu 20.04 LTS. For those of you who didn’t know, Review Board is a free and open-source web-based software tool that is used to Review your developer’s code yet pre-commit and post-commit. It is written in Python and uses either SQLite, MySQL, MariaDB, or PostgreSQL to store its data. Review Board saves time because it allows you to review almost anything during a development lifecycle, including documentation, website designs, artwork, user interface mockups, release announcements, and feature specifications.

    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 through the step-by-step installation of the Review Board 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.

  • The basics of regular expressions in Linux script - Linux Concept

    A sequence of characters that have certain patterns of text (with meta-characters) that are searched for in a larger text file are called regular expressions [...]

    In the preceding command, the grep utility will search for the cpuinfo text in all lines of input text and will print lines that have the cpuinfo text.

  • User initialization scripts in Linux - Linux Concept

    So far, we have seen different scripts that initialize the operating system prior to a user login. Once the basic operating system is initialized, the user login process starts. This process is explained in the following topics.

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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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