VirtualBox VMs: Moving to and running from external drives
In a recent webinar someone said that it was impossible for him to set up the suggested lab environment because … More VirtualBox VMs: Moving to and running from external drives
Best Japanese language learning resources after one decade of studying
Recently I realized that it’s been almost a decade since I started to learn Japanese. In my Anki vocabulary trainer … More Best Japanese language learning resources after one decade of studying
Script to check VirusTotal for many files and folders
Edit 09/04/2021: Clarified installation instructions by adding explanation on how to install the YAML module. Edit 13/03/2021: Corrected reference for … More Script to check VirusTotal for many files and folders
Use AWS Security Token Service (STS) to let low-privileged user temporarily assume privileged role in other account
Imagine one of your contractors usually does not need access to your AWS S3 buckets (or only access to buckets … More Use AWS Security Token Service (STS) to let low-privileged user temporarily assume privileged role in other account
Script to set up port forwarding, start/stop & automatically SSH into headless VirtualBox VM
Virtual machines are very useful not only on servers or in cloud environments, but also installed locally on a workstation … More Script to set up port forwarding, start/stop & automatically SSH into headless VirtualBox VM
“Stealing the environment” – Insecure password injection in scripts and containers via environment variables
An “interesting” part when working with APIs or runtime environments like containers is of course credential management. Somehow you have … More “Stealing the environment” – Insecure password injection in scripts and containers via environment variables
Subnetting quick & easy
It’s very useful to be able to quickly perform some subnetting when given an IP address with its CIDR – … More Subnetting quick & easy
Making a unidirectional double tagging VLAN hopping attack bidirectional
A network engineer recently asked me why VLAN hopping via a double tagging attack is considered dangerous – after all, … More Making a unidirectional double tagging VLAN hopping attack bidirectional
Counterintuitive traditional Chinese input on Windows
When it comes to typing Chinese characters on a computer, one has to decide if simplified characters should be used, … More Counterintuitive traditional Chinese input on Windows
How fast does a society become individualistic?
According to the “rice farming theory“, societies that traditionally sustained on rice were collectivist societies, while wheat farming gave rise … More How fast does a society become individualistic?