In the previos post, I went through the basic steps of getting data from Owntracks to a MySQL database. In this post I will show how these data easily can be imported into QGIS. Our first obstacle is to get some additional python modules installed inside the QGIS environment. We need these modules for extracting […]
Author: Alex Jensen
From Owntrack to QGIS – part 1
I like to track my trips. I don’t like google (or others) also tracking me! In this blog post I will present a solution where you can track yourself privately on your own server. All this is done with Owntracks installed on the mobile phone I also wanted to have easy access to the data […]
Ture og steder fra udinaturen.dk i QGIS
Jeg mangler tit en bedre tilgang til data på udinaturen.dk. Jeg har derfor lavet lidt python-kode, som kan trække al deres data ud via deres API. De har godt nok WMF og WFS adgang, men jeg kan ikke få det til at virke i QGIS. Resultatet er gemt i en færdig GEOPACKAGE til QGIS, med […]
Grabbing Media with MITMPROXY
Why Often I like to follow some online courses on my tablet when I am offline. E.g. in trains and planes. Most content providers don’t give me the option to download the content for offline usage. There are many ways of grabbing content, but often sites are trying to obfuscate their content with a lot […]
Evil Maid – Encrypt your harddrive
The problem Many companies/people are very aware of their online security. They install firewalls, AV, IDS, not running as local admin and in general behaving cautiously on the internet. All this is very good, but most people and corporations seems to forget about physical security. Without physical security all of the above precautions are pretty […]
Under the radar remote shell
Telnet shell through TOR hidden services As a black hat you always want to stay undetected. Even if you are detected you don’t want to leave traces back to your IP. The onion router (TOR) is a perfect solution for hiding your identity. I set up a POC to show that it’s possible to gain […]
Poor mans Bash Bunny
The Project I have been looking at the BashBunny from Hak5 for some time, and thought to myself that it was quite expensive. I wanted to play with the same powerful tools, so I decided to build my own cheap-ass version from a Raspberry Pi Zero WiFi. After looking around the internet I found a […]
ESP8266 on batteries for years – part 5
Actual power consumption measurements The power beast – ESP8266 One of the very first and most important measurements is how much the ESP consumes when its waken up. I used my voltage/current logger to measure this. This is the result: It shows that the ESP is awake for about 0.7 seconds and on average […]
ESP8266 on batteries for years – part 4
Python Server The python source code can be found on github here. The program starts up a TCP listener on a defined port. Whenever there is an incoming connection it spawns a thread that handles the incoming data. The data packet is parsed and each measurement is stored in Influx-db with name, value and timestamp. […]
ESP8266 on batteries for years – part 3
AtTiny85 Firmware The arduino source code can be found on github here. The main loop is a state machine that keeps track of if the AtTiny is sleeping, measuring, waking up ESP, or sending its data. When a measurement is taken it’s stored in RAM. If it doesn’t fit in RAM, the oldest measurements are […]