ubuntu

How To SSH Securely with Kryptonite on the cloud provider — step-by-step Linux tutorial on Progressive Robot

How To SSH Securely with Kryptonite on the cloud provider

SSH is the primary way of connecting to remote Linux servers. Securing this channel is essential to maintaining a secure infrastructure. Kryptonite is a secure solution to protecting your SSH private key. In this guide, you will generate an SSH key pair with Kryptonite on your phone, pair your phone with your local computer, and use Kryptonite to SSH into a cloud servers.

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Como atualizar para o Ubuntu 20.04 Focal Fossa — step-by-step Linux tutorial on Progressive Robot

Como atualizar para o Ubuntu 20.04 Focal Fossa

A versão mais recente de Suporte de longo-prazo (LTS) do sistema operacional Ubuntu, o Ubuntu 20.04 (Focal Fossa), foi lançada no dia 23 de abril de 2020. Este guia explicará como atualizar um sistema Ubuntu de versão 18.04 ou superior para o Ubuntu…

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How To Use fwknop to Enable Single Packet Authentication on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Use fwknop to Enable Single Packet Authentication on Ubuntu 12.04

Single Packet Authentication is a method that grew out of earlier port knocking as a way of keeping services shielded until you request access through a predefined sequence of events. Single packet authentication does this by sending a single encrypted packet to the server in order, which can then validate the client and open the requested port. In this article, we will discuss how to use the fwknop suite to implement single packet authentication on an Ubuntu 12.04 VPS.

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How To Use LVM To Manage Storage Devices on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Use LVM To Manage Storage Devices on Ubuntu 18.04

LVM, or Logical Volume Management, is a storage device management technology that gives users the power to pool and abstract the physical layout of component storage devices for easier and flexible administration. In this guide, we will cover how to manage your storage devices with LVM. We will show you how to display information about volumes and potential targets, how to create and destroy volumes of various types, and how to modify existing volumes through resizing or transformation.

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How To Use Port Knocking to Hide your SSH Daemon from Attackers on Ubuntu — step-by-step Linux tutorial on Progressive Robot

How To Use Port Knocking to Hide your SSH Daemon from Attackers on Ubuntu

Port knocking is a method of protecting your services behind a firewall until connection attempts are made to a specific sequence of ports in a certain amount of time. The firewall rules are then modified to allow access to the service and the user can connect as normal. In this article, we will discuss how to implement port knocking to add an extra layer of protection to your SSH daemon in order to dissuade attackers.

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How To Use the LESS CSS Preprocessor on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Use the LESS CSS Preprocessor on an Ubuntu VPS

In this tutorial, we will see how you can install LESS and get started using it on the server-side. For this, it assumes you are already running your own VPS with Ubuntu and a web server installed on it if you want to see something in the browser (but not necessary at this level). Additionally, you will have to install Node.js and NPM (Node Package Manager).

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