Linux is an Open source operating system comes in many flavors like RedHat, Ubuntu, CentOS , OpenSUSE etc. It is currently supported in almost all the infrastructure and is most widely used OS around the World. I will cover all the important Linux Topics under this category.
In this article, I will take you through the different usages of cat command in Linux. cat command is also abbreviated as "concatenate". It is the most popular opensource tool in Linux and Unix based Systems to show/view contents of the files. You can also perform operations like search, redirect, append etc with the help ... Read more
In this article, I will take you through 20 Useful Linux History Command Examples. As a Linux Professional you must be running multiple commands every day in your system but did you ever thought if these commands gets recorded anywhere or can you fetch the commands which you ran in the past ? The answer ... Read more
In this article, I will take you through 20 Useful curl command in Linux with Examples. curl is very powerful command line tool to send or receive GET and POST request/response from web server. You can even use this tool to upload your data in the FTP Server. There are other useful operations like checking ... Read more
In this article, I will take you through the steps to install and configure FTP Server in Linux. FTP is known as File Transfer Protocol used for transferring files over the network insecurely. Since FTP transferred data is in plain text and not in encrypted form so it is usually recommended to use the secure ... Read more
In this article, I will explain you about the possible reasons for "Failed to restart network service: Unit network service not found" error and will also show you all the possible solutions that can be done to solve this issue. As you might be aware this error is very frequent whenever you change some network ... Read more
In this article, we will look into the possible reasons of getting network.service failed to start LSB: Bring up/down networking error in RHEL/CentOS 7/8 based systems and the number of solutions that can be done to solve this issue. This error is quite common now a days for all the Linux Professionals to deal with. ... Read more
In this article I will take you through 11 Useful LVM(lvcreate, pvcreate and vgcreate) command example on Linux. You might be aware of LVM Technologies which is frequently being used by multiple Organizations to manage their resources effectively. You can check more about LVM Configuration on How to Configure LVM in Linux (pvcreate, vgcreate and ... Read more
In this article I will take you through 11 Useful PSSH Command Examples to Perform Parallel SSH in Multiple Linux Servers. You might be familiar with ssh tool which we often use to run some command or perform certain task on remote host. pssh(parallel-ssh) tool is the more advanced version of ssh command which comes ... Read more
In this article, I will take you through 15 Popular pssh command examples in Linux to perform parallel ssh in a single command. PSSH is a very popular command line tool used for parallel SSH Connections in Linux. You can connect multiple servers with different Linux/Unix OS to perform parallel SSH Operations. In many occasions ... Read more
In this article, I will take you through the steps to install and setup Freeradius Server in Linux (RHEL/CentOS 7/8). The FreeRadius server project is the implementation of the Remote Authentication Dial-In User Service (RADIUS) protocol used by many corporations and Internet service providers to authenticate users connecting from remote locations. The FreeRadius server daemon, ... Read more