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Redhat / CentOS
The nmap command is an invaluable tool for any system or network administrator. This command is not available on RHEL 8 / CentOS 8 default installation. However, it can be installed with a single dnf command.

In this tutorial you will learn:
  • How to install Nmap command on RHEL 8 / CentOS 8.
  • How to to check Nmap version on RHEL 8 / CentOS 8.

Details
Redhat / CentOS
The Python 2 interpreter is not available on RHEL 8 / CentOS 8 default installation. However, it can be installed with a single dnf command.

In this tutorial you will learn:
  • How to install Python 2 on RHEL 8 / CentOS 8.
  • How to to check Python version on RHEL 8 / CentOS 8.

Details
Redhat / CentOS
The netcat or a.k.a. ncat command is an invaluable tool for any system or network administrator. This command is not available on RHEL 8 / CentOS 8 default installation. However, it can be installed with a single dnf command.

In this tutorial you will learn:
  • How to install ncat command on RHEL 8 / CentOS 8.
  • How to to check ncat version on RHEL 8 / CentOS 8.

Details
Redhat / CentOS
Chrony is a default NTP client as well as an NTP server on RHEL 8 / CentOS 8. This article will provide you with an information on how to perform an installation and basic configuration of an NTP server or client on RHEL 8.

In this tutorial you will learn:
  • How to install NTP server on RHEL 8 / CentOS 8.
  • How to install NTP client on RHEL 8 / CentOS 8.
  • How to open firewall to incoming NTP requests.
  • How to configure Chrony as NTP server.
  • How to configure Chrony as NTP client.

Details
Redhat / CentOS
The wget network downloader utility is an invaluable tool for any system or network administrator. The wget utility can be installed with a single dnf command in case it is currently unavailable on your RHEL 8 / CentOS Linux system.

In this tutorial you will learn:
  • How to install the wget command on Redhat 8.
  • What is the wget command basic usage.

Details
Redhat / CentOS
Putty is GUI SSH, Telnet and Rlogin alternative client for graphical user interface. PuTTY is not a part of the standard RHEL 8 / CentOS 8 repository however can be installed from the EPEL repository directly as an RPM package using the dnf command.

In this tutorial you will learn:
  • How to install PuTTY on RHEL 8 / CentOS 8 using the dnf command.
  • How to launch PuTTY.

Details
Redhat / CentOS
The command line vim text editor utility is an invaluable tool for any system administrator. The vim editor can be installed with a single dnf command in case it is currently unavailable on your RHEL 8 / CentOS 8 Linux system.

In this tutorial you will learn:
  • How to install vim text editor on RHEL 8 / CentOS 8.
  • How to set vim as the system wide default text editor.
  • How to set vim as the user default text editor.

Details
Redhat / CentOS
In this guide we will manually install graphical User Interface (GUI) on RHEL 8 / CentOS 8 Linux. Please note that KDE GUI has been officially dropped as of RHEL 8 / CentOS 8.

In this tutorial you will learn:
  • How to install GUI on RHEL 8 / CentOS 8
  • How to start GUI on RHEL 8 / CentOS 8

Details
Redhat / CentOS
NPM is a javascript package manager for the Node JavaScript platform. The objective of this article is to install NPM on RHEL 8 / CentOS 8. To install NPM on RHEL 8 / CentOS 8 we will use the dnf install command.

In this tutorial you will learn:
  • How to install NPM on Rhel 8.
  • How to search for modules using NPM.
  • How to install modules using NPM.
  • How to install modules form a Git repository.

Details
Redhat / CentOS

The latest release of the RHEL 8 / CentOS 8. Red Hat has built its own tools, buildah and podman, which aim to be compatible with existing docker images and work without relying on a daemon, allowing the creation of containers as normal users, without the need of special permissions (with some limitations: e.g. at the moment of writing, it's still not possible to map host ports to the container without privileges).

Some specific tools, however, are still missing: an equivalent of docker-compose, for example does not exists yet. In this tutorial we will see how to install and run the original Docker CE on Rhel8 by using the official Docker repository for CentOS7.

In this tutorial you will learn:
  • How to enable the docker-ce repository on RHEL 8 / CentOS 8
  • How to install docker and docker-compose on RHEL 8 / CentOS 8
docker-RHEL 8 / CentOS 8
Docker installed on RHEL 8 / CentOS 8

Details
Redhat / CentOS
The LAMP server is the foundation of Linux web hosting. If you're looking to set up a LAMP stack to host your website, this guide will provide you with the necessary information on how to get start with LAMP on RHEL 8 / CentOS 8 Linux server.

In this tutorial you will learn:
  • How to install all LAMP prerequisite packages on RHEL 8 / CentOS 8.
  • How to secure MariaDB database.
  • How to start httpd and MariaDB services.
  • How to open HTTP and HTTPS firewall ports.

Details
Redhat / CentOS
Some software packages for RHEL 8 / CentOS 8 come from commercial vendors such as game companies that provide closed-source binary packages or installers that you can run and enjoy in Linux. These installers often come either in .sh form or .bin form. Both are executable installers that you can launch in RHEL 8. If you have downloaded a .bin file and don't know how to run it follow these steps.

In this tutorial you will learn:
  • How to make .bin files executable using the command line
  • How to install .bin files in RHEL 8

Details
Redhat / CentOS
The dig DNS lookup utility is an invaluable tool for any system or network administrator. The dig utility can be installed with a single dnf command in case it is currently unavailable on your RHEL 8 / CentOS 8 Linux system.

In this tutorial you will learn:
  • How to install the dig command on Redhat 8.
  • What is the dig command basic usage.

Details
Redhat / CentOS

There may come a time when that package you want to install in RHEL 8 / CentOS 8 is simply not available as a RPM file. The alternative is to download the source and compile it yourself, or - alternatively - generate a RPM file from that source code later on.

But there is another way. Given the fact that Debian-based distributions have way more users than RPM-based ones, the number of available packages in their repositories is greater. Chances are you will be able to find a DEB file for that package you want. Here is how to install that DEB file in RedHat Linux with the help of a small utility called alien.

In this tutorial you will learn:
  • How to install alien in RHEL 8 / CentOS 8
  • How to convert a DEB package to a RPM one

Details
Redhat / CentOS

Most laptops and mobile devices these days have a wireless card. Mobile connectivity is important more than ever. If twenty years ago Linux barely had enough drivers for a handful of on-board ethernet cards, now the wireless drivers embedded in the kernel grows with every kernel release. Further than that, hardware companies release their products together with Linux drivers, be they closed or open-source. In this article we will take a look at how to install wireless drivers in RHEL 8 / CentOS 8.

In this tutorial you will learn:
  • How to install wireless drivers using dnf
  • How to install manually downloaded wireless drivers

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