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NTP is a core protocol used by most IT infrastructures. Its purpose is to synchronize date and time information. However, it is very important to configure NTP for your servers, clients, and other network devices. NTP uses a UDP port number...

If you are using Linux and are looking for a tool that can monitor all the processes running on your system, then you should use the command ps aux. This command will show you an overview of all running processes. It is very useful for trou...

In this article, we will learn how to fix the error mesg: ttyname failed: Inappropriate ioctl for device in Linux . We will discuss some of the causes of this error and show you how to fix it. Let's start with what causes this error in Linu...

In this article, we will learn how to execute binary files in Linux. We will also learn how to troubleshoot the error if Linux fails to execute the binary file. Usually, this error occurs when we run shell scripts in Linux. This article wil...

In this Linux article, we will learn about lsof command in Linux operating system. We will see how to use this command for different purposes in Linux. We use lsof the lsof command to verify the ports in use on the Linux operating system. U...

In this Linux article, we will learn how to install .deb (Debian Package) files on Linux systems. We will also see how to remove .deb files after installation. More importantly, we will learn different ways to install .deb files on Linux sy...

This article will teach us how to update YUM in Linux and how to install, update, remove, find and manage packages on a Linux system. We have also seen the difference yum update between and in Linux yum upgrade . yum update command in Linux...

This short article is a brief introduction to CentOS followed by a brief discussion on how we can get the server IP address in CentOS using the Command Line Interface (CLI). This article will discuss some of the commands and their usage for...

If present, the working directory of a process in Compute is a directory in a linked hierarchical file system that is dynamic for each process. In Docker, we can set our working directory by editing the Dockerfile and adding the key WORKDIR...

Docker allows developers to efficiently build, test, and deploy applications by packaging them in standardized units called containers. When working with Docker containers, you may encounter scenarios where you need to connect a container t...

In this article, we will learn about Bash history, its size, and how we can change our history size and handle limits. Before getting into our topic, let us first understand why we need history in Bash shell and how we can get it. Most deve...

There are various ways to get network details in Linux. We will learn some of them in this article. This simple guide is all about using different commands that can be used to get the primary IP address in Linux operating system using Bash...

Suppose you have a file, a large file, and you want to display its contents. How would you do it? You obviously don't want to print out the entire contents of the file, as that's not very practical. You might want to print some selective li...

Sometimes, we need to put the entire contents of a file into a variable for various purposes, such as finding specific data from a file, replacing a specific part of a file, etc. In Batch, it is very easy to put the entire file contents in...

In batch files, variables containing multiple words or spaces must be placed in double quotes, but sometimes, we do not want to see these quotes in the output. These quotes can be removed from the variables in batch files. There are many wa...