Linux & DevOps

Terraform is one of the most widely used applications to use the Infrastructure as Code. It is available for almost all the cloud service providers out there & also can be used for in-house solutions.

Terraform can be used to create a single instance or a complete data center. Not only instances, but we can also perform networking, DNS, or firewall management using the terraform scripts. In this tutorial, we will discuss some of the important Terraform commands that we should know.

When we install a Linux distribution, we see that a number of directories are created. These created directories may be the same or partially different on various Linux distributions.

You might know about the directory structures & what purpose they serve. For those of you who don’t know about the Linux directory structure or have partial knowledge or just want to relook on Linux directory structure & its usage, this article will act as a reference guide.

This tutorial answers your question i.e. how to set up Passwordless SSH? SSH  is a protocol to communicate a server with the client in an encrypted manner.

It has replaced telnet protocol, which was not at all secure at all. Almost all the Linux system admins know about it because they use it to connect to Linux servers as the physical access to the server is very limited.

SSH is installed by default on most Linux distribution. In this tutorial, we will learn to access ssh sessions securely with the help of Public/Private keys authentication aka passwordless ssh setup.

Learn how to set up Passwordless SSH in this video tutorial.

SSH  is a protocol to communicate a server with the client in an encrypted manner.

It has replaced telnet protocol, which was not at all secure at all. Almost all the Linux system admins know about it because they use it to connect to Linux servers as the physical access to the server is very limited.

SSH is installed by default on most Linux distribution. In this tutorial, we will learn to access ssh sessions securely with the help of Public/Private keys authentication aka passwordless ssh setup.

To be able to install Ubuntu or any other Linux OS or even any other OS like Windows etc, we either need a bootable FlashDrive or a DVD of the OS.
In this tutorial, we will discuss how we can create a bootable Linux Flash Drive or a USB drive using a Ubuntu System.

There are many tools on almost all operating systems available with most of them being 3rd party tools, but we have an inbuilt tool on Ubuntu for creating a bootable flash drive, called ‘Startup Disk Creator'. We will be using the same tool to create a bootable Linux flash drive.

Learn about some useful Linux keyboard shortcuts that can increase your efficiency as well as your productivity. Using Linux means using

Learn how to install Python 3.9 & also PIP on Ubuntu & also other Linux versions. You can also refer to the following web tutorial for step by step tutorial...

This simple tutorial details the process to install Python PIP on Ubunu & also on CentOS / RHEL.

PIP is a package manager for python-based software, PIP actually is a recursive acronym for 'PIP installs python' or 'PIP install packages'.

Using PIP, we can install, uninstall the python based packages along with their required dependencies. Many of the packages can also be found at PyPI (Python Package Index).

In this Ansible commands cheatsheetl, we will learn some important yet simple ansible commands that we can use to manage the hosts connected

In this Beginner's friendly BASH tutorial, we will learn to create Bash Functions for shell scripts. Functions are like mini-scripts inside

Learn how to perform some of the common operations for Gitlab Setup, once you have installed the Gitlab server on your systems. We must be aware of how to perform following common operations as mentioned below,

Add SSH keys
Create/Remove User
Create/Remove Groups
Create Project

In this Gitlab tutorial, we are going to discuss just that.

Learn some Yum command Tips & Tricks to use it with ease. Yum command in Linux is the default package manager for RPM packages on RHEL &

Learn how to create a docker image. We will use one of those Dockerfiles to create a Docker image & will then upload the created image to

In this beginner's friendly tutorial, we will learn how to create a Dockerfile with some dockerfile examples. Dockerfiles are required to

Learn how to install Terraform on Linux. Terraform is a great tool for automating our infrastructure by converting all our infrastructure into

Identify network issues on system with the SS command in Linux with examples . SS command is used to get various network/socket connections

In this Beginner's friendly tutorial, we are going to learn to configure networking in Centos/RHEL using NMCLI & IFCONFIG command in Linux.

In this beginner's friendly tutorial, we will learn about GLANCES tool. It is a Linux server monitoring tool that can be used for real-time

Learn how to perform simple Linux Backups with Rsync command. Having a comprehensive data protection policy in place is now a fundamental

This is beginner's friendle guide for Securing Redis server. Redis is an open source, in-memory data structure store or a key-value store

Should I use CyberGhost ?? Is this the best VPN for torrenting ?? IS this the best VPN for PC ? If these are the questions you are seeking

Learn how to install Ansible on Ubuntu. Ansible is an open source configuration management, application deployment as well software