How to use Ansible
In this article we will see what is and how to use Ansible, so we will start with a brief introduction. Introduction to Ansible Ansible is an open source configuration …
The 8 best hex editors for linux
In this article you will see the 8 best hexadecimal editors for Linux. But first let’s define what a hex editor is and what it is used for. We also …
How to use tmux
Surely you have heard of tmux. Today we will talk about how to use tmux, that is: what it is, what it is for and how to use it. What …
Compile and Install python 3.7
Sometimes we can find ourselves with an old system that we cannot change for some reason. Being old in this system we can not install from Python 3.7 package, to …
How to hold packages with apt-get in Debian and Ubuntu
Hello! Upgrading packages, sometimes you may have problems if some packages are upgraded. You may want to prevent a certain package from being upgraded, but how to hold packages on …
How to kill zombie processes in Linux
Let’s see how to kill zombie processes in Linux. But before that we have to explain what these processes are. What is a zombie process? Sometimes we are faced with …
Basic HTTP Routing and Balancing with HAProxy
Hello again! Today we are going to talk about basic HTTP routing and balancing with HAProxy. What is HAProxy? HAProxy is a software that allows us to perform load balancing …
The importance of upgrading systems
As you have probably seen in the media lately, the importance of updating systems is more visible than ever. We are seeing numerous critical vulnerabilities that can lead to a …
Best practices building images with Dockerfiles
Order matters In Dockerfiles the order matters a lot. For example, it is not the same to execute a COPY or ADD instruction to add an executable file and then …
Basic linux series chapter 3: How to connect via SSH to another system
This is the new installment of the Linux Basics Series: How to connect via SSH to another system. We are going to teach how to connect to a linux system …