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Install LibreNMS on Ubuntu 20.04 LTS using Nginx - Step by step guide ?

This article covers the process of installing LibreNMS on your Ubuntu 20.04 LTS Focal Fossa system. In fact, LibreNms works and supports protocols such as SNMP, LLDP, OSPF, ARP, CDP, BGP and FDP to auto-discover the network.  You can also use LibreNms to monitor many network hardware (such as Cisco, Juniper, Foundry, FreeBSD, Brocade) and even operating systems such as Windows, Linux, and FreeBSD.

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Install Tmux on Linux Mint 20 - Step by step guide ?

This article covers the process of installing Tmux on a Linux Mint 20 system. In fact, Tmux is a popular multiplexer which makes it easy for you to run different applications in separate sessions and switch between them effortlessly.

Tmux is a Linux application that allows multitasking in a terminal window. It stands for Terminal Multiplexing, and is based around sessions. Users can start a process, switch to a new one, detach from a running process, and reattach to a running process.


How to Install Tmux in Linux ?

1. On Debian-based distributions:

$ sudo install tmux

2. On CentOS/REHL:

$ yum install tmux

3. To install tmux on Arch Linux:

$ pacman -S tmux

Once the installation is finished, launch a terminal and type in tmux to start a fresh tmux session:

$ tmux

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Install and Use MyCLI in MySQL / MariaDB / Percona for Auto-Completion and Syntax Highlighting on Ubuntu 20.04 server

This article covers how to install and use the MyCLI tool on your Ubuntu Linux system. In fact, MyCLI is an easy-to-use command line interface (CLI) for MySQL, MariaDB, and Percona, that helps you speed up development with auto-completion and syntax highlighting features.


How to install the MyCLI tool on your Linux system ?

MyCLI tool is based on Python and needs to be installed via pip. Make sure PIP and python development libraries are installed.:

$ yum install python-pip
$ yum -y install python-devel
$ pip install mycli


MyCLI Features include:

  • Auto-completion as you type for SQL keywords as well as tables, views and columns in the database. Auto-completion is on by default. The REPL will pop up a suggestion menu as soon as you start typing. The suggestions are context sensitive based on the position of the cursor. eg: Only tables are suggested after the FROM keyword, only column names are suggested after the WHERE clause.
  • Syntax highlighting using Pygments. Syntax highlighting has plenty of themes that can be changed via the config file.
  • Smart-completion (enabled by default) will suggest context-sensitive completion.
  • SELECT * FROM <tab> will only show table names.
  • SELECT * FROM users WHERE <tab> will only show column names.
  • Support for multiline queries.
  • Favorite queries with optional positional parameters. Favorite Queries are a way to save frequently used queries with a short name. Save a query using \fs alias query and execute it with \f alias whenever you need.
  • Timing of sql statments and table rendering.
  • Config file is automatically created at ~/.myclirc at first launch.
  • Log every query and its results to a file (disabled by default).
  • Pretty prints tabular data (with colors).
  • Support for SSL connections.
  • There are two types of keybindings available. Emacs mode and Vi mode
  • Cross-platform support – runs under Linux and macOS. The software may run under Windows but this is not tested.

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Install OBS Studio on Ubuntu 20.04 LTS - Step by step guide ?

This article covers the process of installing OBS studio on your Ubuntu Linux system. In fact, OBS Studio is a free open source software for capturing, compositing, encoding, recording, and streaming video content.


Main features of OBS Studio includes:

  • Live to stream.
  • Video recording.
  • Fully configurable with multiple video sources.
  • Individual audio mixer with per-source supporting filters.
  • Video transitions.
  • Real-time video/audio capturing and mixing.
  • Free and open-source.
  • Export to multiple formats.
  • Drag and drop.

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Install Budgie on Linux Mint 20 - Step by step guide ?

This article covers the process of installing and removing the Budgie Welcome Screen application on a Linux Mint 20 system. In fact, the Budgie Desktop environment is popular because of its simplicity yet user-friendly and easy to use. Budgie uses GNOME technologies at its core and is integrated very well with the GNOME stack.

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Install / Enable RPM Fusion on Rocky Linux 8 - Step by step guide ?

This article covers how to install RPM fusion on AlmaLinux 8 / Rocky Linux 8. In fact, RPM Fusion is a repository specifically for Fedora Linux which is an amalgamation of the software repositories Livna, Freshrpms, and Dribble to bundle resources. 


How to Disable or Enable any repository like RPM Fusion from Rocky Linux 8 system ?

1. Install Yum Utils:

$ sudo dnf install yum-utils

2. Command syntax to enable or disable repo:

$ sudo yum-config-manager --disable repository-ID

3. To get the ID list the repositories using:

$ dnf repolist

Let's say we want to disable Fusion then the command will be:

$ sudo yum-config-manager --disable rpmfusion-free-updates

To enable the same in the future, use:

$ sudo yum-config-manager --enable rpmfusion-free-updates

4. To List, all the enabled and disabled repositories simply type:

$ dnn repolist all

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