Category: How To’s

install Docker compose

Lazy SysAdmin’s guide to install Docker Compose

In this tutorial, we are going to learn about Docker Compose & process to install Docker compose on your Linux machines. With the help of docker compose, we can create & run multi-container Docker...

install Docker on Ubuntu

Learn Docker : Easy way to install Docker on Ubuntu

A Docker container provides a way to run multiple isolated systems on a single server or host. Each container shares kernel (& libraries also) of the host’s operating system. And since each container that...

create docker container

Create your first Docker container : A Beginner’s guide

Docker containers are making news for some time now & there popularity has been growing day by day. They are now being adopted at a fast pace & are replacing Virtual machines especially when...

Gitlab tutorial for Beginners

Informative guide to Gitlab tutorial for Beginners

This gitlab tutorial for beginners is actually a collection of various tutorials that we have already published & purpose of writing this tutorial is actually to make it easy for readers to get all...

Gitlab tutorial

A Gitlab tutorial — Things to do after installation

Earlier we have discussed detailed installation of Gitlab server on CentOS & Ubuntu systems. Once we have our Gitlab server ready, we must be able to perform common operations like the ones mentioned below,...

how to install java on ubuntu

Easy guide on how to install Java on Ubuntu systems

Java is a high level programming language that is being used for a large number of applications & is installed on large number of servers/systems. We have already covered how we can install java...

wildfly cluster

Creating a Wildfly cluster for load-balancing in Linux

In our earlier tutorial, we have learned to install wildfly 10.1.0. in this tutorial, we will learn to create a load-balancing wildfly cluster. We will be using wildfly verison 10.1.0, which is the latest...

let's encrypt on centos

Create a free Apache SSL certificate with Let’s Encrypt on CentOS & RHEL

Let’s Encrypt is a free, automated & open certificate authority that is supported by ISRG, Internet Security Research Group. Let’s encrypt provides X.509 certificates for TLS (Transport Layer Security) encryption via automated process which...

compare files in Linux

Simple way to compare files in Linux for differences

There are many GUI tools available to compare files & folders to check for any changes or dissimilarities, but it does not mean that one can’t perform comparison or diff using CLI on a...

tar command examples

Tar command Examples : Compress & Decompress the files\directories

One of the most performed functions during day to day activities of a system admin is data archiving or data compression/Decompression. And normally we use ‘tar’ command to do so but there are other...

Send mail from terminal

Mail Command : Send mail from terminal on Linux machines

There are plenty of ways for sending email while using GUI , using browser or with an email client. But options are limited when it comes to command line interface aka CLI. In this...

Backup & Restore GITLAB

Easy & simple guide to Backup & Restore GITLAB

Gitlab is a web GUI for git repositories with support for CI/CD, issue tracking & wiki. We have already discussed in detail, how we can install GITLAB on CentOS & Ubuntu systems. In this...

Simple Ansible commands

Ansible Tutorial: Introduction to simple Ansible commands

In our earlier Ansible tutorial, we discussed the installation & configuration of Ansible. Now in this ansible tutorial, we will learn some simple ansible commands that we will use to manage our infrastructure. So...

Step by step guide to install Ubuntu 18.04

Ubuntu is & has been a good choice for people who use want a stable Desktop Linux distribution, & it’s also a good choice of Linux distribution that can also be used as server...

create Bootable Linux Flash Drive

Learn to create Bootable Linux Flash Drive (using Ubuntu)

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,...

add ssh credentials on Jenkins Server

How to easily add ssh credentials on Jenkins Server

Jenkins can make ssh connection to a remote server for the purpose of executing a command or running a script or we can also copy file from jenkins or some other server to another...