System Administration & Configuration

Automatically mount USB external drive

The default behavior of most Linux systems is to automatically mount a USB storage device (such as a flash drive or external drive) when it gets plugged into the computer. However, this is not the case across every distro, or sometimes configurations go awry and you may find that your device is not being automatically mounted. You may also just want your storage device to mount when you plug it in before booting....
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Introduction to grep, egrep, fgrep...

The grep command on Linux systems is one of the most common commands you'll come across. If we had to sum up this command, we'd say it's used to find a specified string or text inside inside of a file. But even with a simple explanation like that, the amount of things it can be used for is quite staggering. The grep command also has a few close cousins, in case you find that it's not up to the job. That's where...
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Programming & Scripting

Addition and subtraction arithmetics...

The date command on Linux can be used to see the current date and time, but we can also use addition and subtraction arithmetic with the command to extend its functionality. For example, instead of seeing the current date, we can see the date and time from five days ago, five years in the future, etc. The possibilities here are endless. This becomes useful in many situations. One such example would be when you're...
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How to convert binary number to...

In this guide, we will show you a short script that can be used to convert a binary number to a decimal number in Python on Linux . This script uses casting which is used to convert a variable from one type to another. In this case, we use Python casting to convert a string to decimal number that is an integer. Check out the script below to use it on your own system. In this tutorial you will learn: How to convert...
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Multimedia, Games and Crypto

How to get CUDA Cores count on Linux

In this article you will learn how to get CUDA Cores count on Linux. As a text subject we will get CUDA core count on NVIDIA GeForce RTX 3080. In this tutorial you will learn: How to get CUDA Cores count using NVIDIA drivers How to get CUDA Cores count using NVIDIA CUDA toolkit
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HiveOS Best Ethereum Miner for NVIDIA

This article will provide you with a benchmark information on best Ethereum miners on HiveOs for your Nvidia GPU card. For our benchmark we have considered all currently available crypto miners on HiveOS, namely: Ethminer, Bminer, lolminer, Phoenixminer, T-rex, Gminer, Nbminer, Nanominer and TT-miner. In this tutorial you will learn: Best Ethereum Miner based on hash rate speed Best Ethereum Miner based on mining...
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Ubuntu

/etc/network/interfaces to connect...

If you want to connect to a wireless network on Ubuntu or any other Debian based Linux distro, one of the many ways to do it is by editing the /etc/network/interfaces file with your Wi-Fi network info. This is a command line only method, so it's very useful if you don't have a GUI installed on the system but need to get on to the WiFi network. It will also support DHCP or static configuration. Read on to see how to...
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How to Create an Integrated...

In this tutorial, we will learn how to create a custom application launcher for an appimage in the Gnome Desktop Environment in Ubuntu . Although we are focusing on Ubuntu for this tutorial, this method should also work in other distributions that use the Gnome Desktop Environment and may also be useful reading for those using other Desktop Environments as some parts are still applicable. In this tutorial you will...
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Debian

How to blacklist a module on...

There may be a time when you need to disable some kernel modules from being loaded during your Linux system's boot time. In this guide, we will discuss a few different ways to blacklist a module, including its dependencies, on Ubuntu and any other Debian based distros. This will effectively permanently disable a module from loading during the boot time. In this tutorial you will learn: How to blacklist a kernel...
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How to install NVIDIA CUDA on Debian...

In this tutorial we will be be installing NVIDIA CUDA on Debian 10 (buster) Linux. We will perform direct network installation from the CUDA developer repository. In this tutorial you will learn: How to install CUDA How to confirm CUDA installation How to install NVIDIA CUDA on Debian 10 (buster) Software Requirements and Conventions Used Software Requirements and Linux Command Line Conventions Category...
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Kali Linux

Use JoomScan to scan Joomla for...

When installing a content management system for your website, it's easy to get lazy and assume that it's going to do all the work for you. A CMS like Joomla certainly does make things more convenient, and lets you publish a polished website very quickly, but that doesn't mean you shouldn't take some extra time to secure it. If your website is running Joomla, you can use the JoomScan utility against your site to...
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How to provide user with root...

Many of the hacking tools on Kali Linux require root privileges to execute, not to mention all the ordinary Linux commands that require it. If you're sick of having to preface commands with sudo and typing in the root password often, we have a couple of solutions for you. You can login to the root user in terminal with the sudo -i command, as we explain in our guide on Kali Linux default password . Alternatively,...
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RHEL / CentOS / AlmaLinux

How to query packages information...

RPM is the recursive acronym for RPM Package Manager: it is the default low level package manager in some of the most famous and most used Linux distributions, such as Fedora, Red Hat Enterprise Linux, CentOS, OpenSUSE and their derivatives. The software, as you can expect, is free and open source; when invoked with the -q option it can be used to query packages to retrieve specific information, such as...
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Configuring VNC Server Access on a...

Most of the time as a Linux system administrator you are managing your servers over the network. It is very rare that you will need to have a physical access to any of your managed servers. In most cases all you need is to SSH remotely to do your administration tasks. In this article we will configure a GUI alternative to a remote access to your RHEL server, which is VNC. VNC allows you to open a remote GUI session...
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Fedora

Virtualbox Guest additions...

If you're running Fedora Linux inside a VirtualBox virtual machine, installing the Guest Additions software will help you get the most out of the system. VirtualBox Guest Additions will give the machine more capabilities, such as a shared clipboard with the host system, drag and drop file transfer, and automatic window resizing. This makes copying data to and from a host system much more convenient. It also changes...
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Configure Apache VirtualHost on Fedora

Apache web servers utilize the virtual host feature in order to host more than one website. If you have Apache installed on Fedora Linux and want to run multiple websites, this is the route you will have to take. But don't worry, Apache makes it rather easy to setup and configure virtual hosts. In this guide, we'll go through the step by step instructions to configure Apache virtual hosts on Fedora. In this...
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