My old Android smartphone fell too many times and had its physical buttons (back, home, recent apps) not working, which was problematic to do anything. You can go back with…
Category: Tips
A setup for remote piano lesson over Zoom
First create a new sink: pactl load-module module-null-sink sink_name=zoom_input sink_properties=device.description=zoom_input then remap into a Zoom monitor source that Zoom will allow selection of: pactl load-module module-remap-source master=zoom_input.monitor source_name=zoom_mic source_properties=device.description=”zoom_mic”
How to give a scientific talk
I have listened to so many talks in so many different fields and topics, that I feel confident enough to provide advice on how to give a proper talk. I…
WP CLI custom commands not working
Make sure to add them in active code. Adding a spare php file with the WP-CLI command definition in /wordpress won’t work, because that code won’t be loaded by WP.…
Brute force a crackme file password with Python
I was to reverse a file for a challenge, MD5 hash 85c9feed0cb0f240a62b1e50d1ab0419. The challenge was called mio cuggino, purposefully misspelled with two g letters. It asks for three numbers. The…
Getting started with Binary reverse engineering: an example
For a challenge in a university security class, I was given this file to crack: reverse1. I started with reverse0, which was considerably easier than the second one. In this post I…
Base conversion in Ubuntu (decimal to binary)
Need to convert a base 10 integer in a base 2 one? Or, at any rate, convert a number from one numeration system to another? In Ubuntu, the bc utility…
