Camilo Matajira
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Book Review: Practical Vim: Edit Text at the Speed of Thought by Drew Neil
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In Practical Vim, Drew Neil gives us an all-around perspective of how to work with Vim.The author divides this book into…
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Packaging a Pandas / Numpy project for Debian 9 and 10 using dh-virtualenv
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In this post we are going to create a debian package for a project that involves importing pandas and numpy. We…
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How to create a Python Debian package with dh-virtualenv
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Problem to solve: I wrote a Python application that is supposed to run on Debian 9/10.The application uses Python 3.5, but…
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Creating a static website with Terraform and AWS’ S3
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In this project I want to provision an S3 bucket with Terraform, and then use the AWS cli to copy the…
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Self-Service Infrastructure
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Objective Linux System Administrators are constantly interrupted with tasks that could be delegated to someone else. For example: Create a new…
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CR Search Engine
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Objective Given the bast literature concerning Christian Reconstruction. I wanted to create a tool that allowed me to search for specific…
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Python SSH Debugger
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In my job as a Linux System Administrator, a considerable amount of the support requests that I receive are related to…
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Sudoku Solver
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After learning to program in JAVA (2008), the first project that I made was a Sudoku solver. Ten years later (2018),…
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Celery — Received and deleted unknown message. Wrong destination?!?
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Root cause: in my case it was a discrepancy between the client (who pushes tasks) and the worker ( who received…
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How to install Python3-Celery executable in Debian 9?
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To install the Celery executable (or celery daemon) for Python3, install the following package: apt-get install celeryd It is important to…
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Upgrading to Ubuntu 20.04 broke my Vim YouCompleteMe
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YCM ceased working after Ubuntu upgrade.To make it work again, you need to use the vim-youcompleteme that comes from the apt…
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My most precious learning tool
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I am a smart person with memory problems. I found out of this problem at 28, and found a way to…
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My journey with touch-typing
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Since I was a kid, I have been postponing learning to touch type. Touch typing is the kind of skill that…
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Book review: Clean Coder by Robert (Bob) Martin.
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In this book, Bob Martin defines what professionalism is in the software industry. This is a “soft” book because its focus…
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Book Review: Clean Code A Handbook of Agile Software Craftsmanship (Martin, Robert C.)
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In this book, “Uncle Bob” teaches us how to write clean (good) code. But why is clean code important? Because, to…
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Book Review: The Debian Administrator’s Handbook (Raphael Hertzog and Roland Mas)
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This book trains you to be competent in managing Debian servers. Is this important or useful? Well, more than 10% of…
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Book Review: Pro Git. 2nd edition.
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If your job involves some aspect of programming, I recommend that you read Pro Git. Git is the new standard for…
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Prometheus, how to solve “error: unknown short flag ‘-c’, try –help”
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If you’ve got this error, this is probably because you are using the sintax of an old configuration file. This is solved…
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How to make SSL work for MariaDB
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First, follow this tutorial: https://www.cyberciti.biz/faq/how-to-setup-mariadb-ssl-and-secure-connections-from-clients/ Second, the only thing missing from that tutorial is this: In the client, in the section…
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How to solve Gitlab’s ‘Error loading key “(stdin)”: invalid format’
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If you receive an error like this in your CICD pipeline $ echo “${GITLAB_CI_SSHKEY}” | ssh-add – > /dev/null Identity added:…