About Matjaz Trcek

Senior lead developer currently working in Java, architecture design, mix of tech from Front-end in JS and templating to chef,rundeck etc. For fun and challenge I am writing different blog posts from stories to poems, programming tutorials and many more. Currently working on my Masters degree on a part-time basis.

Acer Travelmate 4150 retrofitting to Raspberry Pi Laptop: Part 1 – LCD and cleanup

First about the idea: I decided to try to create my own laptop with using one of older laptops not useful for anything else. Idea was to find a cheap one on ebay with working LCD and keyboard, ignoring everything else. Choosen laptop: Acer Travelmate 4150 15" Intel Centrino 1.73Ghz spares/rebuild. // Cost 15£ Perfect, It arrived fairly soon and everything seems to be in order. The

By |March 27th, 2017|Categories: ALL, Electronics, How to|Tags: , , , , , |

Duplicity scp/ssh backup on raspberry Pi

I want to use duplicity to backup my cloud server on Linode (You can use AWS as well or any other provider through which you can scp/ssh). Why I want to use duplicity is also because or partial backups, since the first backup will be full and all continuous ones will be only for the difference in files. Why Raspberry pi? It's cheap, low power and very

By |March 1st, 2017|Categories: ALL, How to, The Code|

Pibakery example of first setup with wifi and on boot VNC ( for updated version of pibakery)

Recently Pibakery has released an update with updated blocks, that changed quite a bit in comparison to previous versions and improved with several additions of the new building blocks or simplification of the previous ones. Now you even have cron job scheduler which is absolutely amazing! First boot: Let's start with taking a look at First boot part of the image above: We start with enabling VLC

By |February 25th, 2017|Categories: ALL, Electronics, How to|

Finding faulty commit with git bisect

Recently the problem I have encountered was that the master got broken, possibly due to broken commit. Therefore I was investigating what would be the best and most appropriate way of finding a solution. Git bisect is a tool that uses binary search to find a faulty commit. Without something like this, your only other option is going through each of the commits until you found the

By |February 22nd, 2017|Categories: How to, The Code|

Installing Docker on Linode with WordPress image

After creating your new Debian/Ubuntu instance on your Linode manager console follow following steps. Instance update and docker install 1.) To upgrade your Linux instance with the newest relevant updates, to get our instance up to date (in our case running Ubuntu) . apt-get upgrade apt-get update 2.) There is an issue with Linode and Docker with dependancies, therefore following command needs to be run as well

By |February 17th, 2017|Categories: ALL, How to, The Code|

Observation analysis of Messier 31 super massive black hole

From a viewpoint of objective observer at centre of galaxy identified as Messier 31 or as known "Andromeda galaxy" by the robotic observer of high elevation of AI it appears that the super massive black hole at the centre, harbours different characteristics to previously identified patterns in the database. Based on currently collected data, the constant flow of energy and mass from the central star clusters close

By |January 13th, 2017|Categories: ALL, Literature|

Gorvak [Poem] – Sentient species of trees in a far away land

Poems are an alternative way of how to put imagination into writing. And in the following one I have imagined a world of sentient tree like beings in a nitrogenic atmosphere with their conscious great but working in a different way and speed to what we may be used to. It gives I hope also a good representation of possible challenges when encountering foreign species sooner or

By |December 10th, 2016|Categories: ALL, Poem|

ATM Skimming attacks and explosives!

When reading on ATM Skimming and article about using explosives on ATM for dispersing the cash and or read the credit card details and PIN's or magnetic strips with the help of the skimmers. It reminded me of my time living in Berlin, where I got used to check every single ATM and removing Skimmers on a mostly daily basis, since I would say at least in

By |November 14th, 2016|Categories: ALL|

DDOS attack – Liberia

A highlight on a very recent DDOS attack from "We live security" blog: http://www.welivesecurity.com/2016/11/04/colossal-ddos-attack-liberia-wipes-majority-country-offline/ A highlight on the bot-net used in the attack from "Medium" site: https://medium.com/@networksecurity/shadows-kill-mirai-ddos-botnet-testing-large-scale-attacks-sending-threatening-messages-about-6a61553d1c7#.3uen29nmd And their excerpt on Liberia: "Over the past week we’ve seen continued short duration attacks on infrastructure in the nation of Liberia. Liberia has one internet cable, installed in 2011, which provides a single point of failure for internet access.

By |November 7th, 2016|Categories: ALL|

Most popular Linux distributions for Hacking and Penetration Testing in 2016

Kali Linux https://codeandunicorns.com/wp-content/uploads/2016/10/kalilinux-min.png Kali linux which contains more then 300 security penetration tools ranging from  Artmitage which is a cyber attack managment tool, nmap which is unmissable port scanner for your everyday security analyst of your beautiful network. as well as a Wireshark for analysing packets, John the ripper which can crack your password with a nice bit of charm. It contains loads of other

By |October 30th, 2016|Categories: ALL|