Yt-dlp: youtube-dl alternative

yt-dlp is a youtube-dl fork based on the now inactive youtube-dlc. The main focus of this project is adding new features and patches while also keeping up to date with the original project.

Official GitHub repository:


sudo wget -O /usr/local/bin/yt-dlp
sudo chmod a+rx /usr/local/bin/yt-dlp

Yt-dlp usage similar as a youtube-dl. To show all supported video formats use command:

yt-dlp -F

To download video use command with flag yt-dlp -f <firmat-id> <video-url>

yt-dlp -f 22

Install Proxmox VE on Debian

Proxmox VE (Proxmox Virtual Environment) – this is a open source virtualization system, that uses a hypervisor KVM and LXC, based on Debian GNU Linux.

First edit your /etc/hosts file and write there your IP address:

sudo nano /etc/hosts   hostname

Add Proxmox VE distribution to your operating system:

echo "deb buster pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list

Add key for Proxmox VE repository:

wget -O /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg
chmod +r /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg # optional, if you have a non-default umask

Update packages list and upgrade your system:

apt update && apt full-upgrade

Install Proxmox VE packages:

apt install proxmox-ve postfix open-iscsi

Reboot your system


After reboot open your web borwser and go to, where – is a IP address of your Proxmox computer, and 8006 – default Proxmox port.

That’s all, Proxmox VE successfully installed on your PC. Now you can create new Virtual machines…

Download video from YouTube and convert it to mp3 in Linux

To download video from YouTube you can use some site in Internet, but many of them have ads, viruses and don’t do what you need.

But you can use simple program youtube-dl. It is free, open source, work in console and can download video, audio from YouTube in one click.

To install youtube-dl use simple commands:

1. Install python:

sudo apt install python3
sudo ln -s /usr/bin/python3 /usr/local/bin/python

2. Install youtube-dl:

sudo wget -O /usr/local/bin/youtube-dl
sudo chmod a+rx /usr/local/bin/youtube-dl

How to use youtube-dl:

To get all supported formats from YouTube video use command:

youtube-dl -F

Thic sommand show you all video formats and id’s

To download some format use flag -f and ID from previous command:

youtube-dl -f 18

That’s all, video starts download. You can use it in terminal and don’t need to open suspicious sites.

You can also download playlists of video from YouTube the same way.

Convert video to mp3 audio.

And you can convert video to mp3 using program ffmpeg. To install ffmpeg use command:

sudo apt install ffmpeg

To convert video to mp3 use command:

ffmpeg -i video.mp4 -acodec libmp3lame audio.mp3

Configure thumbnails for video files in nextcloud

Nextcloud use ffmpeg to generate thumbnails from video files, so you need to install ffmpeg on your server first:

sudo apt install ffmpeg

Now configure nextcloud. Open configuration file /config/config.php and add this lines:

'enable_previews' => true,
'enabledPreviewProviders' => array (
        0 => 'OC\\Preview\\Image',
        1 => 'OC\\Preview\\Movie',
        2 => 'OC\\Preview\\TXT',

That’s all, it is very simple 😉

How to Install NGINX and PHP 7.4 on Debian 10

Step 1: Install Nginx

Firstly install the prerequisites:

sudo apt install curl gnupg2 ca-certificates lsb-release

Then we need to add the Nginx mainline package to our repository so that when we run apt install nginx, we will download the mainline version instead of the old stable version.

echo "deb `lsb_release -cs` nginx" 
    | sudo tee /etc/apt/sources.list.d/nginx.list

Next we need to download the signing key so that we can verify its authenticity

curl -fsSL | sudo apt-key add -

If it prints out OK! then you are good to go!

Now update package repositories and install Nginx:

sudo apt update
sudo apt install nginx

That’s it! You have now installed the latest release of Nginx on Debian 10. You should now start it!

sudo systemctl start nginx.service

And Don’t forget to make it automatically start on system boot as well.

sudo systemctl enable nginx.service

Step 2: Install PHP 7.4

To install PHP 7.4 we need to add repository. Since PHP 7.4 didn’t come with Debian 10 it is required to add the following repository. Write this commands:

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:ondrej/php

Update package repositories:

sudo apt update

And now install PHP 7.4:

sudo apt install php7.4-fpm php7.4-common php7.4-mysql php7.4-gmp php7.4-curl php7.4-intl php7.4-mbstring php7.4-xmlrpc php7.4-gd php7.4-xml php7.4-cli php7.4-zip php7.4-soap php7.4-imap

It is recommended to raise the memory limit to improve the overall performance. Your PHP configuration is located in /etc/php/7.4/fpm/php.ini.

sudo vim /etc/php/7.4/fpm/php.ini

Replace it with memory_limit = 256 and save document with :wq command. How to edit files in text editor Vim you can read here: How to exit Vim? And other required commands.

Step 3: Configure Nginx

Add nginx to www-data group

sudo usermod -a -G www-data nginx

Change owner of directory to www-data

sudo chown -R www-data /usr/share/nginx/html

Go into your default.conf file

sudo vim /etc/nginx/conf.d/default.conf

Replace your existing configuration file with the one below

server {
    listen       80;
    server_name  localhost;

    root   /usr/share/nginx/html;
    index  index.php index.html index.htm;

   location / {
    if ($request_uri ~ ^/(.*)\.html$) {
        return 302 /$1;

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
        location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass   unix:/var/run/php/php7.4-fpm.sock;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include        fastcgi_params;


Restart Nginx server:

service nginx restart

Now you can cteate test file fith information about PHP version:

nano /usr/share/nginx/html/phpinfo.php

In Web-browser write IP address of server:

That’s all Nginx Server with PHP 7.4 installed.

Install monit in Debian 10 (buster)

Monit is a free open source utility for managing and monitoring, processes, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.

To install Monit on Debian 10 GNU Linux (Buster) you need to add backports repository:

printf "%s\n" "deb buster-backports main" | \
sudo tee /etc/apt/sources.list.d/buster-backports.list

Then update package list:

sudo apt update

And install buster-backports and monit package:

sudo apt install -t buster-backports monit

To start monit service and show running status use commands:

sudo systemctl start monit
sudo systemctl status monit

If you want to enable auto start monit when system starts use command:

sudo systemctl enable monit

Now let’s configure monit to monitoring Apache2 and Nginx services. Open monit configuration file:

sudo vim /etc/monit/monitrc

To change monitoring interval change option:

set daemon 120

To send email if monitored services is down edit this options:

set mailserver your.mail.server
set alert your.mail.address

You can enable Web-interface where you can view information about monitoring services. By default monit starts on 2812 port. Enable this two lines and change administrator password:

set httpd port 2812 and
allow admin:monit # require user 'admin' with password 'monit'

Don’t forget to open port 2812 in firewall and restart monit service:

sudo systemctl restart monit

Now open and see monit web interface:

Install Skype on Debian 10

Skype is not an open-source application, and it is not included in the default Debian repositories. We’ll install Skype using the Skype deb package.

Download Skype deb package:


When the download is complete, install Skype using command:

sudo apt install ./skypeforlinux-64.deb

Now run Skype and authorize with your login, that’s all

Install Viber on Debian 10

Step 1: install flatpak:

sudo apt install flatpak

Step 2: install Viber:

flatpak --user remote-add --if-not-exists flathub
flatpak --user install flathub com.viber.Viber

That’s all, scan QR code with your phone and use Viber on Debian 10!

Debian 10 – install and configure i3wm

i3 is a tiling window manager designed for X11, inspired by wmii and written in C. It supports tiling, stacking, and tabbing layouts, which it handles dynamically.

Configuration is achieved via plain text file and extending i3 is possible using its Unix domain socket and JSON based IPC interface from many programming languages.

Step 1: Install Debian 10.

Download Debian 10 .ISO image from official site:

Step 2: Write ISO image to USB drive using program Etcher:

Step 3: Install Debian 10 on your PC.

Don’t install any other programs and desktop environments, uncheck all check boxes in installation menu. You need clear operating system without any other software.

Installation i3wm and other software:

Now you have clear oerating system with command shell.

First authorize in system with root login, change repositories to testing branch in file /etc/apt/sources.list, it is needed to get latest packages:

Upgrade your system:

apt update
apt upgrade

Install sudo and add sudo privilegies to your username:

apt install sudo
usermod -aG sudo username

Now you can logout from user root and authorize with your username login, Install file manager MC and other additional software:

sudo apt install mc vim htop screenfetch

Install X-Window-Server, I3, and other software for desktop environment:

apt install bash-completion lightdm zenity network-manager-gnome viewnior i3 xserver-xorg xbacklight conky nitrogen compton tilix firefox-esr thunar rofi flameshot

Visual Studio Code first config

Visual Studio Code is a very powerful free and open source text editor, but before start usage it you need to but to use all its features, you need to configure it.

Visual Studio Code

First of all disable telemetry collection in File > Preferences > Settings menu:

Override “Alt” button to toggle menu bar:

"window.titleBarStyle": "custom",
"window.customMenuBarAltFocus": false

Disable file previewing when clicked on at all is by setting:

"workbench.editor.enablePreview": false

Functionality of Visual Studio Code can be extended with plugins and extensions.

To change tabulation for existing document use command:

indent using tabs

I prefer to install such basic plugins: Project Manager, Ftp-sync, Show Functions, Beautify, and Material Icon Theme, Atom Material Theme:

This is my basic configuration of Visual Studio Code, you can also change other options and config this amazing text editor as you want.