ubuntu

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…

Read more
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.

Read more
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.

Read more
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.

Read more
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).

Read more
How To Install and Use OTPW for Single-Use SSH Passwords on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use OTPW for Single-Use SSH Passwords on Ubuntu 14.04

SSH is a way of connecting to a remote server securely. It includes a number of mechanisms to perform this task in a safe way. However, the protocol assumes that the computer that you are connecting from is secure. In this guide, we will instruct you on how to set up one time passwords as an option for connecting to your server from an insecure location. We will do this by configuring the OTPW utility on an Ubuntu 14.04 machine.

Read more
CHAT