Devil’s Bridges in Europe -Rakotzbrücke Germany
If medieval legends are to be believed, a gravity-defying bridge like this could only come from a deal with the devil. Devil’s bridges exist all over Europe, with nearly 50…
A colony of blue-green algae can power a computer for six months
Researchers from the University of Cambridge have managed to run a computer for six months, using blue-green algae as a power source. The computer was placed on a windowsill at…
US-based ISP’s have been ordered to block three pirate streaming services
A federal judge has ordered all internet service providers in the united states to block three pirate streaming services operated via Doe defendants who never appeared in court and hid…
Interest Expenses: How They Work, Coverage Ratio Explained
What Is an Interest Expense? An interest expense is the cost incurred by an entity for borrowed funds. Interest expense is a non-operating expense shown on the income statement. It…
Mysterium Network – May 2022 Update
So I decided to start a new “Crypto Mining” experiment for fun and to earn some passive income with my internet. I just upgraded to a faster service level with…
Check out my Solar System!
Solar / Photovoltaics is a project that I started a LONG time ago. The story started like this. I had a weekend/summer getaway house, and inside the community, we all…
How To Generate 4096-bit Secure ssh Key with ssh-keygen
Ssh is a secure protocol used to manage remote systems like Linux, BSD, UNIX, network devices event windows operating systems. The traffic between systems is encrypted. Ssh uses asymmetric keys…
How To Set up SSH Keys on a Linux / Unix System
I recently read that SSH keys provide a secure way of logging into a Linux and Unix-based server. How do I set up SSH keys on a Linux or Unix-based…
Ansible: yum update, reboot system, and wait_for reboot to complete
Table of Contents The Objective The purpose of this post is to explain with an example how ansible initiates the reboot and waits for the reboot to complete. In some…
How to check if a File exists in bash
There are several ways to check the availability of a file in Linux. The “test” command in bash scripting is one of the critical approaches to checking a file’s existence.…