System Administration & Configuration

Learning Linux Commands: awk

In the case of this article, the Learning Linux Commands: awk title might be a little misleading. And that is because awk is more than a command , it's a programming language in its own right. You can write awk scripts for complex operations or you can use awk from the command line . The name stands for Aho, Weinberger and Kernighan (yes, Brian Kernighan), the authors of the language, which was started in 1977,...
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What is DHCP and how to configure...

DHCP is a networking protocol used to assign IP addresses to networked devices. In this guide, we'll introduce you to the protocol and explain how it works. You'll also see how to implement a DHCP server on Linux systems , and configure it for your own network. In this tutorial you will learn: What is DHCP? How to implement a DHCP server on major Linux distros How to configure DHCP on Linux
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Programming & Scripting

ls command

The ls command on Linux is one of the most essential command line tools that all users should familiarize themselves with. When navigating directories on the command line, the ls command is used to list the contents of a directory. Without this command, we can't know what files are on our system. Once you learn how to use this command, the knowledge will carry over to any Linux distribution , since ls is a longtime...
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Converting xlsx Excel format files...

Files with the xlsx extension have been formatted for Microsoft Excel. These documents contain columns and rows of data, just like those found in Google Sheets or LibreOffice Calc. This data can be stored as CSV (comma separated values), making it easily readable by various applications or even plain text editors. Due to their proprietary nature, Excel spreadsheets can be difficult to open on Linux systems , making...
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Multimedia & Games

ffmpeg audio format conversions

The ffmpeg software is a free and open source suite of utilities that facilitate audio and video media. On Linux systems , installing ffmpeg gives us access to the ffmpeg command , which can be used to convert audio files to various types, such as wav, mp3, ogg, etc. In this guide, we will go over the instructions to install ffmpeg on major Linux distros . Then, you'll see various command line examples that can be...
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How to install Starcraft 2 on Ubuntu...

In this Linux guide you will learn how to install Starcraft 2 on Ubuntu Linux. The Starcraft 2 game has been released free of charge for anyone with registered Battle.net account. Before you proceed with the installation make sure that you have correctly installed an appropriate VGA driver whether it is for your NVIDIA or Radeon graphic card. In this tutorial you will learn: How to install Wine How to install...
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Ubuntu

How to setup and use FTP Server in...

FTP stands for "File Transfer Protocol" and is a great protocol for downloading files from a remote or local server, or uploading files onto the server. Using FTP proves to be a pretty basic task after it has been setup properly. It works by having a server that is listening for connections (on port 21 by default) from clients. The clients can access a remote directory with their user account, and then download or...
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Setup Wireless interface on Ubuntu

Setting up the wireless interface on Ubuntu Linux is likely one of the first things you'll need to do after installing the operating system and booting into it for the first time. As long as you have the proper hardware, Ubuntu can easily connect to Wi-Fi networks configured with various types of security like WEP, WPA, and WPA2. In this guide, we will cover the step by step instructions to connect to a Wi-Fi...
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Debian

How to use apt search Linux command

One of the most attractive features of running a Linux system is the instant access to thousands of packages that are able to be installed from the Linux distro's package manager . Installing packages is really easy. That is, as long as you know the name of what you're trying to install. If you don't, then you can always search for installable packages. On distros that use the apt package manager , like Debian ,...
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How to change hostname on Debian Linux

The hostname of a Linux system is important because it's used to identify the device on a network. The hostname is also shown in other prominent places, such as in the terminal prompt. This gives you a constant reminder of which system you're working with. It's a real life saver when you're managing multiple systems through SSH and those command line terminals start to blend together in your mind. Of course, IP...
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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

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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How to work with dnf package groups

Dnf is the default high-level package manager in the Red Hat family of distributions, which includes Fedora, Red Hat Enterprise Linux and all its clones. It is the successor of Yum, and indeed using the yum command in recent versions of the distributions mentioned above, is just another way to call dnf. Dnf has a lot of nice features and plugins which help us install, update and remove software packaged in the...
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Fedora

NVIDIA GeForce Driver Installation...

The NVIDIA Driver is a program needed for your NVIDIA Graphics GPU to function with better performance. It communicates between your Linux operating system , in this case Fedora , and your hardware, the NVIDIA Graphics GPU. The NVIDIA drivers can be installed by using a Bash command after stopping the GUI and disabling the nouveau driver by modifying the GRUB boot menu. To install Nvidia driver on other Linux...
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How to create a Fedora Linux Live...

A great feature of many Linux distributions is that you can create a live USB (or CD/DVD) key and boot directly into it. This allows you to try out an operating system, troubleshoot an existing installation, or install Linux onto the system's hard drive. Fedora is one of those distributions of Linux that allows us to boot into a usable environment directly from USB. In order to do that, we just need to write the...
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