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How to Restart a Frozen Desktop in Linux

There are times when your Linux desktop will just freeze and stop responding to input. Here is how you can restart the frozen desktop without rebooting.

How to Install Samba Server on CentOS 8

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 20, 2020 5:29 PM EDT)
  • Story Type: Tutorial; Groups: Linux
Samba is a free and open-source software that can be used to share files, folders, and printers between Linux and Windows systems. In this tutorial, we will learn how to install Samba and configure it as a standalone sharing server on CentOS 8.

How to Install CouchDB on Debian 10

Apache CouchDB is a free and open-source NoSQL database developed by the Apache Software Foundation. It can be used as a single-node or clustered database. This article describes how to install CouchDB on Debian 10, Buster.

Control the firewall at the command line

  • Fedora Magazine; By Paul W. Frields (Posted by bob on Mar 20, 2020 1:46 PM EDT)
  • Story Type: Tutorial; Groups: Fedora
A network firewall is more or less what it sounds like: a protective barrier that prevents unwanted network transmissions. They are most frequently used to prevent outsiders from contacting or using network services on a system. For instance, if you’re running a laptop at school or in a coffee shop, you probably don’t want strangers […]

Bash Script to Send eMail With a List of User Accounts Expiring in "X" Days

The user will only change the password on some of the servers they use, and they won’t change the password on the servers they don’t use often. To avoid this situation, we have created a shell script that sends you a list of user accounts that expire within 10 days.

How To Record And Play Mouse And Keyboard Events Using Atbswp Macro Recorder (GUI)

Atbswp is a new graphical utility (Python3) that can be used to record the mouse and keyboard events. You can then reproduce (play) them identically as many times as you want by either clicking a button, or save the mouse and keyboard actions as a script and run it without having to relay on Atbswp.

How to set up PXE boot for UEFI hardware

Setting up a PXE system will streamline new system installs, but the process is lengthy and requires attention to detail. This part one of two articles walks you through the process.

Dev branch Fedora 32 versus Dev branch Ubuntu 20.04 in relation with KVM Hypervisor

We intend to testify F32 KVM Hypervisor on Penryn's box with 8 GB RAM. However, after install KVM on F32 WKS we appear to be able to launch Manjaro Gnome 19.02 as KVM guest @F32 Workstation Virtualization Host as well as CentOS 8.1 Guest with no issues at all.

How to Change the Timezone on Debian 10

  • vitux.com; By Karim Buzdar (Posted by vitux on Mar 20, 2020 12:08 AM EDT)
  • Story Type: Tutorial; Groups: Debian
In this article, we will explain how to change the current time zone of a Debian 10-Buster system on the command line and trough the GNOME GUI.

Introduction to setting up a Linux high availability cluster

This Linux high availability cluster introductory article walks you through the basic protocol that underpins Keepalived, which is a software implementation of VRRP on Linux.

How to Install Nextcloud Client on Debian 10 Buster

If you already have a Nextcloud server in place, you're going to need to set up your client devices to connect to it. Setting up the Nextcloud client on Debian is very simple, and so is setting up your folders to sync.

How to Overclock Your Raspberry Pi 4

Retailing at $40, Raspberry Pi already gives you plenty of bang for your buck, but you can get even more out of this single-board computer by overclocking.

How To Sync Browser Profile Into Tmpfs (RAM) In Linux

  • ostechnix.com; By Senthil Kumar (Posted by ostechnix on Mar 19, 2020 5:56 PM EDT)
  • Story Type: Tutorial; Groups: Linux
Sync Browser Profile Into Tmpfs (RAM) Using Profile-sync-daemon In Linux To Improve Browser Speed And Responsiveness.

How to Uninstall Software in Ubuntu – Command Line

  • Cloudbooklet; By Pappin Vijak (Posted by cloudbooklet on Mar 19, 2020 3:28 PM EDT)
  • Story Type: Tutorial
How to uninstall software in Ubuntu from command line. In this guide you are going to remove software packages on your Ubuntu server or system from command line.

Copy Specific File Types While Keeping Directory Structure In Linux

  • ostechnix.com; By Senthil Kumar (Posted by ostechnix on Mar 19, 2020 2:13 PM EDT)
  • Story Type: Tutorial; Groups: Linux
This brief tutorial explains how to copy specific file types while keeping the directory structure in Linux.

How to Install Visual Studio Code on CentOS 8

Visual Studio Code is an open-source, cross-platform code editor developed by Microsoft. It has built-in debugging support, embedded Git control, syntax highlighting, code completion, integrated terminal, code refactoring, and snippets.

How to Install RPM on CentOS

In this tutorial, we learn how to install rpm on CentOS Linux distributions. Check how to query rpm dependencies and install rpm using yum command.

From sysadmin to DevOps

Transitioning from sysadmin to DevOps will have a cost in time and effort but will be worth it. Your benefits will include new skills, advanced tools, and fresh perspective.

How to create a Virtual Machine (VM) on Google Cloud Platform (GCP)

Google Compute Engine lets you use virtual machines that run on Google's infrastructure inside the Google Cloud Platform. In this article, we will demonstrate how to create a virtual machine (vm) using the Ubuntu 18.04 boot disk image in Google Cloud Platform (GCP).

How to Stream Steam Games with Raspberry Pi 4 and Steam Link

Want to enjoy the latest Steam games on the biggest screen in your house? Find our how to stream Steam game with Steam Link on your Raspberry Pi 4.

How to Install Latest VLC Media Player on Debian 10

  • vitux.com; By Karim Buzdar (Posted by vitux on Mar 18, 2020 12:12 PM EDT)
  • Story Type: Tutorial; Groups: Debian
In this article, we will show two ways to install VLC Media player depending on whether you choose the graphical interface or the command line of your Debian system.

How to list, create, delete partitions on MBR and GPT disks - RHCSA Objective Preparation

Disk partitions are the basis of storing our data on disks. To be able to handle partitions, in this part of RHCSA exam preparation tutorial we will add an empty disk to our test RHEL 8 system, and create, list, and delete a new partition on it.

How to Install ClamAV on Debian 9 and Scan for Vulnerabilities

Clam AntiVirus (ClamAV) is an open-source anti-virus framework used by millions of people and companies all around the world, providing free malware protection by default for everyone. It is especially effective on email servers, as it works on just about all possible MTAs (postfix, exim, etc). It is easy to set up, customizable, and has a reliable method of virus definition updates. In this tutorial, we’ll be explaining how to install ClamAV on your Debian 9 VPS, as well as how to use it to check for and remove any malware or security vulnerabilities.

How to Install Mono on CentOS 8

  • Linuxize.com; By linuxize (Posted by linuxize on Mar 18, 2020 7:15 AM EDT)
  • Story Type: Tutorial
Mono is a platform for developing and running cross-platform applications based on the ECMA/ISO Standards. It is a free and open-source implementation of Microsoft’s .NET framework.

How To List Symlinks On Linux

  • ostechnix.com; By Senthil Kumar (Posted by ostechnix on Mar 18, 2020 4:10 AM EDT)
  • Story Type: Tutorial; Groups: Linux
List symlinks or symbolic links or soft links in Linux.

A curious pair of data ops

  • BASHing data; By Bob Mesibov (Posted by Bob_Mesibov on Mar 17, 2020 10:01 PM EDT)
  • Story Type: Tutorial
A command-line method for doing multiple pivots on a table of market data, and how to organise Chinese characters when you don't understand them.

Two ways to Flush the DNS Cache on Debian 10 (Buster)

The DNS or the Domain Name Server can be characterized as the most essential part of your link to the internet. Our systems also maintain a list of DNS records so that we can access our frequently visited websites faster through a quick resolution of IP addresses. This cache on our system needs to be flushed from time to time. This tutorial shows how to flush the DNS cache on Debian 10 by using systemd and the networking service.

How to use Ranger for navigating files from the command line

  • Opensource.com; By Ben Nuttall (Posted by bob on Mar 17, 2020 7:58 PM EDT)
  • Story Type: Tutorial; Groups: Linux, Python
Ranger is an incredibly handy terminal-based file navigator that's written in Python and is available for Linux and Mac. Ranger allows you to navigate your filesystem using the arrow keys on your keyboard: Up/Down to select files in the current directory (middle pane), and Left/Right to hop back and forth through levels and into directories. When you're focused on a directory, it shows you the contents in the right-hand panel.

How to Install MySQL 8 Database Server on CentOS 8

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 17, 2020 5:55 PM EDT)
  • Story Type: Tutorial; Groups: Linux, MySQL
MySQL is a free, open-source and one of the most popular database systems around the globe. In this tutorial, we will show you how to install MySQL 8 on CentOS 8 server.

How to test failed authentication attempts with test-driven development

Testing often begins with what we hope happens. In my previous article, I demonstrated how to virtualize a service you depend on when processing the "happy path" scenario (that is, testing the outcome of a successful login attempt).?But we all know that software fails in spectacular and unexpected ways. Now's the time to take a closer look into how to process the "less happy paths": what happens when someone tries to log in with the wrong credentials?

How to upload an OpenStack disk image to Glance

  • Opensource.com; By Jair Patete (Posted by bob on Mar 17, 2020 3:21 PM EDT)
  • Story Type: Tutorial; Groups: Cloud, Linux
Glance is an image service that allows you to discover, provide, register, or even delete disk and/or server images. It is a fundamental part of managing images on OpenStack and TripleO (which stands for "OpenStack-On-OpenStack").

Speeding up container image builds with Buildah

Buildah can greatly increase the speed of builds and reduce the number of resources required to support a build farm

How To Disable Unattended Upgrades On Ubuntu

Ubuntu has a feature named Unattended Upgrades, which installs the latest security updates automatically. This guide describes how to disable unattended upgrades on Ubuntu.

Exploring the Linux /proc filesystem

There's a wealth of information for sysadmins in the /proc filesystem and it's time to explore it.

15 Important PostgreSql commands you must know

  • https://devopsmyway.com; By C Chakravarty (Posted by devopsmyway on Mar 15, 2020 7:22 PM EDT)
  • Story Type: Tutorial; Groups: Linux
These are important PostgreSQL commands that you must know as a DevOps/Database Admin. I would recommend you to also read my earlier article for PostgreSQL Installation.

How to Install FlintCMS on CentOS 7

In this tutorial, we will show you how to install FlintCMS on a CentOS 7 VPS. FlintCMS is a free and open-source, super-fast, content-focused, Node.js-based Content Management System (CMS). It provides a flexible and easy-to-use interface for creating and managing websites, blogs, and other types of content.

How I migrated from a Mac Mini to a Raspberry Pi

  • Opensource.com; By Peter Garner (Posted by bob on Mar 15, 2020 2:59 PM EDT)
  • Story Type: Tutorial; Groups: Raspberry Pi
Some time ago, I decided to move my computing environment from a Mac Mini PowerPC to a Raspberry Pi Model 2. This article describes my reasons for doing so and how I did it. While?it is quite technical in places, if you're considering switching from an existing system to something decidedly lean and mean, there are things that you need to know before making that leap. There are lots of links to click as well, which will lead you to the software and apps that I mention.

Nested KVM performance evaluation on Ubuntu 20.04 (Focal Fossa)

Performance appraisal has been done via attempt to set up Ubuntu 20.04 as KVM virtualization host installing Qemu && Libvirt. Please, be aware that successful install KVM on Ubuntu 20.04 (bare metal) might require in meantime CPU's generation Haswell at least.

How to Install Ruby on Debian 10

Ruby is one of the most popular languages today. It has an elegant syntax, and it is the language behind the Ruby on Rails framework. In this article, we will look into different ways to install Ruby on Debian 10. In this article, we will look into different ways to install Ruby on Debian 10. We'll show how to install Ruby from the default Debian 10 repositories and using the Rbenv and RVM scripts. Choose the installation method that is most appropriate for your setup and environment.

How To Backup and restore data using Restic On Linux

  • ostechnix.com; By Senthil Kumar (Posted by ostechnix on Mar 15, 2020 6:13 AM EDT)
  • Story Type: Tutorial; Groups: Linux
Install restic and how to backup and restore data using Restic on Linux.

How to Create a Plex Server on Raspberry Pi 4

Plex is a media server software that allows you to stream your movies to any Plex client. Here we show how to create a Plex server on Raspberry Pi 4.

Adding a display to a travel-ready Raspberry Pi Zero

  • Opensource.com; By Peter Garner (Posted by bob on Mar 15, 2020 1:50 AM EDT)
  • Story Type: Tutorial; Groups: Raspberry Pi
In my earlier article, I explained how I transformed a Raspberry Pi Zero?into a minimal, portable, go-anywhere computer system that, although small, can actually achieve useful things. I've since made iterations that have proved interesting and made the little Pi even more useful. Read on to learn what I've done.

How to send one-liner emails from Linux/Ubuntu terminal – Embed email sending feature into your application

  • net2.com; By Ziad Nahdy (Posted by zn52 on Mar 14, 2020 11:39 PM EDT)
  • Story Type: Tutorial; Groups: Linux
In this short tutorial, you will learn how to send one-liner emails using sSMTP from your Linux Ubuntu/Debian terminal. But why on earth would we want to send Emails from the terminal ? Well there could be many reasons. For instance you would want to build an application which sends Emails …You will also be able to attach files to the Email.

Managing Linux Users & Groups

As we all know Linux is a multi-user operating system. If you have multiple users operating on a desktop or a server, you can easily create multiple users accounts and grant permissions as per each account.

How to Install R on CentOS 8

R is an open-source programming language and free environment that specializes in statistical computing and graphical representation. It is supported by the R Foundation for Statistical Computing and mainly used by statisticians and data miners for developing statistical software and performing data analysis. This article describes how to install R on CentOS 8.

Make SSL certs easy with k3s

In a previous article, we deployed a couple of simple websites on our k3s cluster. There were non-encrypted sites. Now that's fine, and they work, but non-encrypted is very last century! These days most websites are encrypted. In this article, we are going to install cert-manager and use it to deploy TLS encrypted sites on our cluster. How to encrypt your website with k3s and Letsencrypt on a Raspberry Pi.

How to Install PHP 7.3 on CentOS 7

PHP is a server-side scripting language, commonly used for Web development, but it is also used as a general-purpose programming language. It is the most popular server-side (back-end) programming language and it powers some of the most popular products on the market, such as WordPress, the most widely used content management system, as well as e-commerce platforms such as Magento and PrestaShop. The process of installing PHP 7.3 on CentOS 7 is a pretty easy and straightforward task, and it can be done in less than 10 minutes. In this tutorial, we will guide you through the steps of installing the latest PHP version 7.3 on a CentOS 7 VPS.

You can't do GitOps until you can git add

Want to try GitOps? First, you'll need your environment in Git. We'll show you how!

How To: Migrate iptables to nftables in CentOS 8

Convert existing iptables ruels into nftables native format in CentOS 8 and RedHat 8

How to Install Yarn Package Manager on Ubuntu

  • Cloudbooklet; By Pappin Vijak (Posted by cloudbooklet on Mar 13, 2020 6:52 PM EDT)
  • Story Type: Tutorial
How to Install Yarn Package Manager on Ubuntu. Yarn is a JavaScript package manager that helps you automate the process of installing, updating, configuring, and removing npm packages easily. It also speeds up the process of the package installation and also prevents the errors related to network connectivity.

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