I just purchased a Yubico Yubikey 5 NFC, a hardware authentication device that is plugged into a USB port. It can be used for signing in to your own machice or some web services such as GitHub. Often it is used as part of a multi-factor authentication scheme, so for instance signing in would requireContinue reading “Yubico Yubikey and PAM”
Category Archives: Computer
Command line tools for binary files
The tools of Unix command line are usually meant for processing line oriented text. Some of those tools can however also handle byte oriented content. In this post I go through some simple use cases. For more complicated uses, hex editors or self-made tools can be more appropriate. Let’s first create two example files:echo -nContinue reading “Command line tools for binary files”
HP Zbook Studio G5
I just bought a new laptop. It features 15.6 inch display, good keyboard, and plenty of processing power. The machine has two USB-A 3.0 type ports and two USB-C ports. However, the USB-A 3.0 ports are too close to each other, so if you plug in an even slightly larger USB memory stick for instance,Continue reading “HP Zbook Studio G5”
Thoughts from the bottom of a well 