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José Lopes
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Authentication Using SSH and PuTTY Generated ED25519 Keys
A few days ago I was making a proof-of-concept of ElasticSearch, Logstash, and Kibana. Once everything was installed, I had to configure SSH to access the server from my workstation and I wanted to make it work in a secure way. So, I stated that I would u...

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IRPF 2016 no Ubuntu
tl;dr # apt-get remove --purge -y openjdk* # add-apt-repository -y ppa:webupd8team/java # apt-get update && apt-get install -y oracle-java8-installer oracle-java8-set-defaults $ wget -O irpf-2016-x64.bin

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Entropy #6
MASSCAN Web Interface This scanner is told to be one of the quickest made. Didn't try. Yet. Vuvuzela " Vuvuzela is a messaging system that protects the privacy of message contents and message metadata." If you're looking for a message system focused on p...

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Criando e Aplicando Patches
tl;dr $ diff > $ patch Explanation Sometimes you need to make a copy of a file, work on that copy and then, that copy becomes more important than the original file. At this point, you can r...

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git request-pull
O primeiro "pull request" a gente nunca esquece, ainda mais quando é num projeto da Netflix. Software livre tem dessas coisas: eu estava tendo problemas testando o Lemur --gerenciador de certificados digitais livre, criado pela Netflix. Então escrevi um rel...

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Entropy #5
Now that's what I call a Hacker This is one of the best [hacker|geek] testimonies I've ever heard . Just read it. :) What is Important in Secure Software Design? This article impressed me. Despite the fact it has many nice references, it looks more like ...

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Entropy #4
Zero Days - Security Leaks for Sale This awesome documentary explains a bit of the zero days market and its implications on modern interconnected world. Time-based OTP Just some useful resources for understanding this nice type of one time passwords: RFC 62...

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Entropy #3
Higher Resolution on Text Mode Linux This is such a nice tip to better configure your VMs or servers, in order to take advantage of bigger screen resolutions when using text mode Linux. The first thing you've got to do is open Grub configuration file in a ...

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Entropy #2
Canary Box Honeypots are such a great idea to improve network security, but it's often hard to configure and maintain. Canary Box was developed to solve this problem, by providing an easy-to-configure appliance that fits into [almost] every network architec...
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