Building healthier containers
Deconstructing containers and examples to better understand the technology
Time Machine
2018
2017
Baking delicious cloud instances
A workflow for cloud instances baking and provisioning using ansible and terraform
Survival guide to tech conferences
Step by step guidelines on how to prepare and improve your experience at tech conferences
2016
fwd - The little forwarder that could
Building a network port forwarder in golang
2015
Vault: PKI Made Easy
A test drive of Hashicorp Vault PKI backend
Veewee, Packer and Kickstarting VMs Into Gear
In a world where the Operating System installation is almost a thing of the past, with all the hosting providers giving you base boxes to use, some of us sti...
2014
Cooking with Containers
Creating testing workflows with containers using docker, coreos and test-kitchen
Certificates Mumbo Jumbo
Everybody hates Public Key Infrastructure (PKI)
Home is Where the Blog is
A blog workflow using github-pages and jekyll
Beyond the HTPC
An overview of my home server and HTPC
Tools of the trade
A list of the best tools I’m currently using for coding and improving productive workflows.
2013
Server side SVN + SSH logging
How to ensure SVN server side is logging every user action on each repository using SSH.
PTCoreSec - Because Security Matters
Published awarded article on security research using hashcat and benchmarking several hashing mechanisms.
ModSecurity Nagios NRPE Check
How to integrate modsecurity with Nagios using a custom NRPE script to audit logs and receive notifications.
2012
Attack detection and notification with iptables, psad and notify-send
Tutorial on how to implement a personal intrusion detection system using the best open source tools available.
2011
Version 2.0
An introspective and why I decided to dive into Python, Github, and search for new software development skills.
Gnome 3 vmware-console with vmware-vmrc fix
How to fix vmware-console in Gnome 3 so it won’t die on you anymore for no apparent reason.
IRSSI IRC mention notify by email using ssmtp
Still using IRC? Follow this tutorial to get notifications from IRC on your inbox using ssmtp.
Do It Yourself Phone Stand
A simple idea on how to reuse something you (probably) have at home as mobile phone table stand.
Android remote filesystem with sshfs
Tutorial on how to mount a remote Android phone filesystem as a local mountpoint on your laptop.
Nagios NRPE OSSEC check
How to integrate OSSEC with Nagios using NRPE to keep an alerting eye on all your infrastructure.
2010
Conky Config eee Netbook
Tutorial on how to display maximum information on an eee Netbook with a conky configuration.
Linux screen multiple applications startup
Tutorial on how to get the most out of Screen, enabling screen sessions automatically on boot.
Asus eee 1001p Ubuntu How-To
Tutorial on how to install and configure Ubuntu 10.04 on Asus eee 1001p, so the hardware works properly.
Book Review: The Art Of Deception
My review of the exceptional manual on social engineering The Art of Deception, written by Kevin Mitnick.
There’s no place like 127.0.0.1
An overview of the main services running on my personal infrastructure and the slides from my presentation at the last PortoLinux tech meeting.
PortoLinux Encontro Técnico
Get to know the infrastructure I’ve built at home in the next PortoLinux meeting, which will take place on March 20.
Book Review: Linux Firewalls
My review of the Linux Firewalls: Attack Detection and Response book, written by Michael Rash.
Beware the SysAdmin
Sysadmin, Die Hard edition. Never underestimate the devotion of a sysadmin.
TEDxO’Porto life changing experience
I celebrated by birthday by attending a TEDx event for the first time. From the networking to the inspirational speeches, it was an outstanding surprise.
How To Disk Dump dd
Tutorial on how to Disk Dump for disk disaster recovery and data forensics with examples to back-you-up.
2009
How to enable VDPAU XBMC 1080p Linux
Learn how to get your HTPC decompressing 1080p movies directly on the GPU for a seamless Full HD movie playback experience.
PortoLinux Encontro Técnico
PortoLinux is a small community of everything Linux related enthusiasts from Porto that will get together on July 11 at Escola Artística Soares dos Reis.
Apresentação @ IPP - ESTGF
I was invited by my alma mater to speak about my professional career as their alumni, tools I’ve been working with and projects I’m currently participating in.
2008
Firestarter Firewall Switch
This script allows you to automatically change the running network interfaces on the firewall, which comes in handy if you’re using Firestarter.
Live USB system rescue cd
Tutorial on how to create a dual partition liveUSB system rescue pen drive, a tool that every sysadmin should always have on their pockets.
Evolution is upon us
Still doubting if Linux is the way to go? Let this video show you the world evolution and why Linux is getting stronger each day.
Media Center Wars
Get to know different features from the Media Center Edition software from Linux and be amazed by it’s capabilities.
Custom LiveCD
Tutorial on how to create your own custom Ubuntu LiveCD with Remastersys, available in the Linux Mint romeo repository.
Cool Ubuntu know how
The difference between Red Hat’s and Ubuntu’s configuration utility and how to fix sound issues in Quake III Arena and Pidgin running on Ubuntu.
Sysadmin tough job
Considering a career as sysadmin? Perhaps this video can both make you laugh and gloat on the perks of the trade.
Linux is sexy
If you are still doubting about Linux skills, perhaps this line of code can convince you otherwise.
Reembolso Windows (Asus)
Fighting for your rights can be a real struggle, like the one I went through to by not accepting the micro$oft windows EULA on my newly bought Asus laptop.
Open Source Software
Open Source Living is a great reference website of open source software divided by any category, from web development to entertainment.
Cheat Sheets
Step up your game on Linux, Vim, Google, Firefox and Thunderbird with these very useful cheat sheets of shortcuts, locations and tips/tricks.