Linux

One draw back of being in the IT industry for so many years is the amount of technologies I’ve used in all past projects, this complicates things even more when I’m on a interview and I’m asked one of the most nonesense questions, whish is:

• How many years of experience do you have in ____ technology? Just fill whichever technology you want in the blank and as you might know, the answer is mostly nonsense. Just to mention a couple of examples:

1. The first time I used AWS was back in 2008, back then I was working in a start up company and the product to be built was a brokerage, we where looking into implementing some infrastructure in the newly created AWS but we where unable to do so since at the time, AWS was not PCI compliant. Funny to think about that now, 16 some years later. Now, the fact that I used AWS for the first time that many years ago, does not mean that I am a master of AWS technologies. What it means is that I’ve used AWS on and off for the past 16 years and are very comfortable with most of the common tools and services. Recently I worked in a project in which it was my first time using Fargate and ECS. It took me a couple of weeks to get the entire implementation going and it was fun to work with it.

Bash Search Text

Creating a bash script to collect specific text from a file is a relatively simple task that can be accomplished using a few basic command line tools. In this post, we will walk through the process step-by-step, so you can start collecting the text you need in no time.

First, open a text editor and create a new file. This will be the script file where we will write the commands that will collect the text from the target file.

Ansible Create Local User

Ansible is a powerful automation tool that can help you manage and automate your infrastructure. One of the many things that Ansible can do is create and manage users, including the ability to add SSH keys for secure access. In this blog post, we will go over how to use Ansible to create a new user and add an SSH key for that user.

First, we need to create a new Ansible playbook. A playbook is a YAML file that contains instructions for Ansible on what tasks to execute. The playbook we will create will have two tasks: one to create the new user and one to add the SSH key for that user.

Getting started with Ansible

Ansible is a powerful tool for automating the configuration and management of servers and infrastructure. In this blog post, we’ll go over the basics of how to get started working with Ansible, including how to install it, how to create and run a simple playbook, and how to organize and manage your playbook files.

First, let’s talk about installation. Ansible is a Python-based tool, so you’ll need to have Python installed on your system in order to use it. The easiest way to install Ansible is to use a package manager like pip:

How to add a Grafana pre-built dashboard

Once you have configured your Grafana + InfluxDB + Telegraf host and you have confirmed that you are sending data, the next step you want to perform is to create a dashboard to display it’s metrics. These are the steps that you’ll need to follow to install a pre-built Grafana dashboard. We will be using the dashboard listed here

First you need to go to

Grafana - InfluxDB - Telegraf Linux Monitoring howto

This is a quick tutorial to install Grafana, InfluxDB and Telegraf on a Debian based system

Grafana has recently become one of the preferred tools for data visualization, this tool provides the users with the required tooling to display data via charts and graphs and these can be unified into one dashboard.

InfluxDB is a time series database. This means that it’s a collection of observations of well-defined data items resulted through repeated measurements over time. Time series data is indexed in time order which is a sequence of data points.

Please take notice that this blog post is work in progress

While working on some tasks in the past few weeks, I faced a problem that involved setting a “filter” for an application that was exposed to the internet.

The application receives requests with some data, process it and then it produces an output, the problem was that the application did not have much control on how many requests it could receive in a specific time frame or from which source it could receive this requests.