CentOS

DHCP (Dynamic host configuration protocol) used to assign an IP address automatically to Mobile, Laptop, PC, and other network devices so they can communicate. It employs a connectionless service model, using the UDP (User Datagram Protocol). DHCP uses a well-known UDP port 67 for the DHCP Server and the UDP Port 68 for the client. … Read more

To start programming in Java on CentOS, you first need to install the (JDK) Java Development Kit on the system to compile and run a java program. We will demonstrate the installation of the JDK and Java program execution through the command line environment. To run a java program you need a text editor in … Read more

In this tutorial, we will learn how to enable email SSH login notifications in CentOS 8. Is your Linux Server used by multiple users and you want to know when a user is logging in by SSH? If yes, then you can enable SSH notifications in Bash profile to get notified. We will add a … Read more

Samba is a free and open-source implementation of the Windows SMB (CIVFS) protocol that allows us to share files, folders, and printers between Linux and Windows Operating System simply and seamlessly. In this tutorial, I will show you how to install and configure Samba on CentOS 8. Install Samba packages To install samba packages in … Read more

XRDP is an open-source implementation of the Microsoft Remote Desktop (RDP) that allows you to graphically control your system. With RDP, you can log in to the remote machine the same as you had logged into the local machine. It uses Port 3389 for its connection. In this tutorial, we will look at how to … Read more

When working on a Linux distribution, the user may need to know about hardware and basic system information of the current working system. Regardless of whether you are a software developer or a normal Linux user, it might be necessary to check software and hardware system compatibility. The command-line Linux system provides built-in commands through … Read more

In UNIX and Linux Operating System, Zombie processes also known as defunct processes, are those which are still running after the complete execution of the process but it still remains in the process table. In this tutorial, we will learn how to check and kill Zombie processes in CentOS 8. How to find zombie/defunct processes … Read more

MTR is known as Matt’s traceroute. It is a simple and cross-platform utility for network diagnostic that is used for most of the command-line systems. This tool is not so popular but provides the features of both traceroute and ping programs. As similar to the traceroute program, the Mtr tool is also used to print … Read more

The Traditional way of turning your monitor off via hotkey has been broken for a few newer versions. A Python script can bring that functionality back in a reliable and efficient manner. The older way to turn off hotkey is by using this command: # xset dpms force off To Turn off the monitor using … Read more

XAMPP is a cross-platform used as a local host, providing them a suitable environment for developers to test web applications before transferring data to remote servers. XAMPP is an open-source Apache distribution of a PHP development environment. It consists of the cross-platform software Apache, Maria DB, PHP, and Perl. XAMPP package is not available on … Read more