Blog

Esfirra

Wed, 17 Dec 2025 00:00:00 +0000

Syrian snack super popular in Brazil.

Using Cloudflare R2 for Images

Thu, 21 Aug 2025 00:00:00 +0000

I decided to change how I’m hosting images for the blog.

Goodbye Jekyll, Hello Hugo

Wed, 06 Aug 2025 00:00:00 +0000

I took a long break from writing to the blog due to a severe case of laziness. After a long time I was not even able to run it locally again :(

So now I want to restart my blogging hobby with fresh content, design, and a new framework. This post is about how I migrated my blog from Jekyll to Hugo.

Schweizer Jakobsweb Part 1 (Rorschach -> Rapperswil)

Fri, 07 Apr 2023 00:00:00 +0000

This is the Swiss part of the Jakobsweb starting in Rorschach, also called “Rorschacher Ast”.

You can find the all steps here, and other useful information as well.

Ricoh KR-10 Super - black and white pictures

Tue, 04 Apr 2023 00:00:00 +0000

I bought a very nice Ricoh KR-10 Super camera for a symbolic price.

I found the deal in an APP called Nebenan which by the way has a very nice objective to give a new purpose to those things in your home that your are no longer using.

Münchner Jakobsweb Part 2 (Marktoberdorf -> Lindau)

Fri, 15 Apr 2022 00:00:00 +0000

It’s been only a few weeks since I’ve completed the first half of the way, and it was amazing! This way, I was really looking forward to do the second half of the Münchner Jakobsweg as soon as possible.

Münchner Jakobsweb Part 1 (Munich -> Lechbruck)

Thu, 24 Mar 2022 00:00:00 +0000

The Münchner Jakobsweg" is a route that starts in Munich and leads through the Allgäu to Lake Constance. The whole way would take at least 10 days, and since I only took 3 days off, I decided to do half of the way.

Rotwand

Fri, 31 Dec 2021 00:00:00 +0000

One of my first hikings since I moved to Germany.

Naturally leavened bread + scoring tool

Sat, 31 Jul 2021 00:00:00 +0000

The whole process can take a while, but once you have the levain you will become addicted to this recipe.

How I host images for the blog (OUTDATED)

Sun, 18 Apr 2021 00:00:00 +0000

EDIT: Check here for the updated version

Today I will show you how I host the images used in the posts. There are many methods you can use, however I found this one to be the most practical, with no additional tools or services needed.

Bread Knife

Fri, 12 Mar 2021 00:00:00 +0000

Making a homemade bread knife

Homemade Bruschetta

Sun, 07 Mar 2021 00:00:00 +0000

Starting with a sourdough bread, then adding homemade pesto, tomato and galic you can made an amazing bruschetta.

Hammock and Coffee at Zeus - SJRP

Fri, 22 Jan 2021 00:00:00 +0000

In this day we went among the trees, set up an hammock and had some fresh grinded coffee.

Trekking Serra da Canastra - Delfinópolis - MG

Sun, 03 Jan 2021 00:00:00 +0000

This was our first trekking, there isn’t a better place to have this great experience. It was a weekend trip, but it was amazing and we learned a lot.

Retro 2020

Tue, 29 Dec 2020 00:00:00 +0000

On the first day of the year, I knew something was going to happen. Some good things, a lot of bad ones, but was the people who crossed my path that made 2020 probably the best year of my life, and the first year of a long jorney to come

Zeus - SJRP

Thu, 17 Dec 2020 00:00:00 +0000

We went there with some friends and had a good talk watching a nice sunset. In this day we had popcorn, fresh made coffee and a good earl gray tea with milk and honey.

Camping Barra do Monjolo - Fronteira - MG

Tue, 01 Dec 2020 00:00:00 +0000

We went camping at Barra do Monjolo - MG

It is a nice place to go camping with a minimal infrastructure and low prices.

Caminho da Alma 2020

Sat, 14 Nov 2020 00:00:00 +0000

Caminho da alma is a anual hikking event that takes place in São José do Rio Preto - SP.

Every year has a few changes, like the destination city, but it always has its traditional 40km length (about 25 miles)

Ow Café - SJRP

Sat, 24 Oct 2020 00:00:00 +0000

Dani saw some photos of a friend in Ow Café and we decided to know this place. We went there for breakfest, hoping to drink a good coffee, in diferent methods.

Little Wooden Pot

Thu, 01 Oct 2020 00:00:00 +0000

I have a few wood pieces around (gift of a friend), so I decided to make a wooden pot for a little piece of my cactus that fall of.

Terrarium 2.0

Tue, 22 Sep 2020 00:00:00 +0000

Giving a new look to the terrarium. You can find the first version here

Camping SJRP - SP

Sun, 02 Aug 2020 00:00:00 +0000

Camping in SJRP - SP

Katana

Tue, 23 Jun 2020 00:00:00 +0000

Making a homemade katana with a pvc pipe sheath

Camping Cachoeira do Caidô - Macaubau - SP

Sat, 13 Jun 2020 00:00:00 +0000

Camping Cachoeira do Caidô - Macaubau - SP

Camping and Abseiling - Torre de Pedra - Ocauçu - SP

Sat, 06 Jun 2020 00:00:00 +0000

Camping and abseiling in Ocauçu - SP

Pão de Torresmo

Tue, 19 May 2020 00:00:00 +0000

It is a traditional brazilian bread made of flour and cracklings. Its similar to the crackling bread, from the cuisine of the Southern United States, but it does not take cornmeal.

Camping Gruta de Moabi - Marília - SP

Mon, 11 May 2020 00:00:00 +0000

1 day camping in the city of Marília - SP.

Monitor Twilio balance using Zabbix

Tue, 28 Apr 2020 00:00:00 +0000

There is a lot o projects and guides on how to configure Zabbix to send alerts using Twilio. But I haven’t found how to monitor the Twilio balance using Zabbix.

Homemade Coffee Filter Holder

Mon, 20 Apr 2020 00:00:00 +0000

Making a homemade coffee filter holder for hario v60

Nasa Space APPs 2019

Fri, 17 Apr 2020 00:00:00 +0000

NASA’s International Space Apps Challenge 2019

One of the stages of this challenge took place in São José do Rio Preto in 2019. It was a great opportunity to meet people with good ideas and work together. The goal was to develop a project using NASA data to improve the world.

Machete

Mon, 13 Apr 2020 00:00:00 +0000

Making a homemade machete with a pvc pipe sheath

Cold Brew

Thu, 09 Apr 2020 00:00:00 +0000

Cold brewing, also called cold water extraction or cold pressing, is the process of steeping coffee grounds in water at cool temperatures for an extended period. Coarse-ground beans are soaked in water for about 12 to 24 hours. Wikipedia

Docker compose samples for applications

Mon, 30 Mar 2020 00:00:00 +0000

Application samples for project development kickoff

Coffee Lab SP

Tue, 17 Mar 2020 00:00:00 +0000

I was in São Paulo for the Roadsec 2019 event. I couldn’t miss the opportunity to visit such a prestigious place

Domain completion for linux network tools

Fri, 07 Feb 2020 00:00:00 +0000

Bash domain completion for some linux network tools

Restoring a Typewriter

Sat, 04 Jan 2020 00:00:00 +0000

Restoring a vintage typewriter and its leather case.

Panettone

Thu, 02 Jan 2020 00:00:00 +0000

Panettone is an Italian type of sweet bread and fruitcake, originally from Milan, Italy, usually prepared and enjoyed for Christmas and New Year. It is also very popular in Brazil, where you can often find it during whole year.

MindTheSec 2019

Mon, 30 Dec 2019 00:00:00 +0000

Mind The Sec is the leading event in Latin America aimed at Information Security

Roasting Coffee at Home

Sun, 01 Dec 2019 00:00:00 +0000

A friend of mine invited me to help him with his coffee. He has some coffee plants at home and they work at all stages of coffee production. This was a good day.

Making a folding knife

Sat, 02 Nov 2019 00:00:00 +0000

Using a broken kitchen knife and wood from a old cabinet drawer to make a folding knife. With the spares I as able to make a kukri knife miniature.

TCP a simple tool for moving files around

Sat, 02 Nov 2019 00:00:00 +0000

A simple program writen in golang for sending and receiving files in the same network.

Satellite's DVB receiver monitoring with Zabbix

Thu, 24 Oct 2019 00:00:00 +0000

Once you have a setup up and running, it is very important to monitor DVB receiver statistics. You can receive alerts for triggers via Email, if configured in Zabbix.

Stecca

Mon, 09 Sep 2019 00:00:00 +0000

Tasty and easy no-knead slow fermentation bread.

Cleaver Restoration

Thu, 05 Sep 2019 00:00:00 +0000

We were using an old rusty cleaver at a friend’s country house. Since I had a previous experience replacing a knife handle, I decided to restore it as a gift.

Share a local port using localhost.run

Fri, 26 Jul 2019 00:00:00 +0000

Sometimes it is very useful to share a local port in your computer over the Internet

Closed Terrarium

Sun, 21 Jul 2019 00:00:00 +0000

Some day at work I’ve been talking to a friend about a closed terrarium. I’ve always enjoyed planting seedlings and herbs, but I never thought of a full enclosed plant.

Monitor domain expiration using Zabbix

Mon, 15 Jul 2019 00:00:00 +0000

It is very important to monitor multiple domain expiration dates when working for a big company. It is more useful when working with multiple registrars, even if you don’t have access to these registrars accounts.

Changing domain name to teffa.dev

Sun, 14 Jul 2019 00:00:00 +0000

I am changing the blog’s domain name to teffa.dev

Homemade Pizza Dough

Sun, 14 Jul 2019 00:00:00 +0000

Ok, it is easier to buy dough when making pizza. Actually, it is much easier to just order a pizza. However, where would the fun be?

Homemade Chessboard

Sun, 07 Jul 2019 00:00:00 +0000

Some day a friend of mine comes with an idea of making his own chessboard. In the same moment I knew I had to make my own too.

Focaccia

Sat, 06 Jul 2019 00:00:00 +0000

Focaccia is a type of Italian flatbread known for its soft, airy interior and crispy crust, traditionally flavored with olive oil and herbs

Mirror a remote Postgresql table (dblink + materialized view)

Tue, 02 Jul 2019 00:00:00 +0000

It is very useful to have a copy of a production table in a local server.

Bounding Box Filtered Grafana Panels (with Postgis)

Mon, 01 Jul 2019 00:00:00 +0000

Today at work I had to create some dynamic panels in Grafana for a project involving some geometry data in Postgresql (Postgis). Most of the data are polygons, with some meta data related to them.

About

Mon, 01 Jan 0001 00:00:00 +0000

Rafael Carreira

I have a degree in computer science at UNESP / IBILCE and I have specifics with security in computer networks and infrastructure. In addition to technology, I really enjoy DIY stuff, cooking crafts, hiking and camping.

Currently

I’m a DevOps Engineer at Limehome, We aim to be the largest European digital hospitality brand that provides the quality and consistency of a casual premium hotel room experience while retaining a fully digital customer.