A little project of mine to read the Bitcoin chain. You can read every block directly from the binary files of the blockchain.
Seperation from the root user is always a smart thing to do. Here is a small init script i made to do exactly this.
Openvpn gives you the possibility to configure your own authentication scripts. For an example I made a script that accepts both Yubikeys and Google Authenticators. I will show you the basics to set this up.
With my recent curiosity into the Bitcoin chain I discovered that is it possible to be part of the validating network. This way i could be one of the first to get the changes in the network and get a live feed to all the transactions that are being made.