Found 22 results

Create CoreOS Container Linux Ignition File

With all recent changes within CoreOS’s Container Linux distribution one of the most notable change is related to the Ignition file, basically this file handles the configuration for any Container Linux installation and we can say that it is pretty powerful. The concept behind this is somehow simple but as we have already said, quite powerful, allowing the users to configure the operating system right from the start with all basic and advanced settings needed. In this short tutorial we will cover the basics of how to create a simple .yaml CoreOS Container Linux ignition config file and how to […]

Category: General | Published: 10/01/2020 | Updated: 10/01/2020

Empty file content on Linux

Empty file content on Linux can be quite handy when for example you want to empty a small or a very big log file or any other similar files that could take long time to open, select all lines and finally remove these lines. We know is not so complex to go down this path but for sure is time consuming, too many operations we would say for such a simple task. This quick tutorial will show you ten easy ways how to empty a file on Linux without opening or editing files, nothing fancy or advanced stuff but as […]

Category: General | Published: 06/11/2018 | Updated: 06/11/2018

Create a Backup Server on Linux

How to create a backup server on Linux is just another quick and easy tutorial from that will guide you step by step to create in just a few minutes your own Linux backup server based on CentOS 7 operating system and also system storage manager (ssm) utility. Even if we are living in the age of Cloud technology with so many nice tools available out there like storage buckets, blob stores and many other trendy names some of us may still need to keep the data safe somewhere on premises. This could be due data sensitivity or maybe […]

Category: General | Published: 06/07/2018 | Updated: 05/11/2018

How to create partitions larger than 2TB in Linux

It’s well known that is impossible to create partitions larger than 2TB in Linux using the default utility fdisk that comes with most of Linux distros, at least for now. In this short tutorial we’ll learn how to create larger than 2TB partitions using parted utility instead of fdisk on CentOS Linux. Assuming that we have to add three new disks to a new fictive server called mydbhost that will be used for a MySQL service for example, being master, slave, standalone it doesn’t matter, all that we care is the partitioning bit. Installing parted utility We can start our […]

Category: General | Published: 04/06/2018 | Updated: 05/11/2018

Generate SSH Key – Linux, Mac and Windows

In this quick tutorial, Generate SSH Key, we will learn more exactly how to generate a SSH Key in Linux or Mac using a terminal window and also in Windows using Putty. Before we start our little journey we should be clear about one thing, all SSH Keys consists of two parts, a Private Key and a Public Key. In this article we’ll generate both these keys and we’ll learn the importance but also the difference between these two. What is a Pivate Key As we said in our introduction a SSH Key contains a Private Key and a Public […]

Category: Security | Published: 09/02/2018 | Updated: 05/11/2018

How to create user in Linux

In this example we will explain how to create user in Linux and how to protect this user by setting up a password for it, we will demonstrate how to create a user account and not a system account. For this particular example we’ll use CentOS 7 as our main operating system and all the above tasks will be performed using shell prompt. Connecting to our environment As we mentioned before will be using shell prompt in our example and we’ll have to initiate a SSH connection in order to connect to our CentOS 7 environment. We can use Putty […]

Category: General | Published: 08/02/2018 | Updated: 05/11/2018