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spring-boot-oauth2-resourceserver
spring-boot-oauth2-resourceserver PublicA Spring Boot OAuth2 resourceserver demo
Java
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flask-oauth2-validation
flask-oauth2-validation PublicFlask OAuth2 decorator for local and remote validation of self-encoded JWT based Bearer access tokens.
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lab-oauth2-device-flow
lab-oauth2-device-flow PublicA simple Python script for testing the OAuth2 device flow
Python
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GnuPG + SSH + YubiKey
GnuPG + SSH + YubiKey 1# GnuPG + SSH Authentication using a YubiKey or Smartcard
23This is about how I setup and use [GnuPG](https://www.gnupg.org) for signing and encrypting data as well as for authenticating [SSH](https://en.wikipedia.org/wiki/Secure_Shell) sessions. I use both, a [YubiKey](https://www.yubico.com) (4 and 5 NFC) and a GnuPG smartcard from [ZeitControl](https://www.floss-shop.de/de/zeit-control/) to have a backup in my wallet. As a smartcard reader I use the [uTrust 2700 R](https://support.identiv.com/2700r/) which works quite well.<br/>
4My typical use cases are SSH authentication, secure file exchange via public places and signing [Git](https://git-scm.com) commits. I rarely use GnuPG for email communication. And I neither sign other GnuPG user IDs nor participate in the [WOT](https://en.wikipedia.org/wiki/Web_of_trust).<br/>
5Since there is no difference between setting up a YubiKey or a smartcard the following description mentions the GnuPG smartcard only.
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Raspberry Pi Zero - Bridge Network S...
Raspberry Pi Zero - Bridge Network Setup 1The goal of this article is to explain how to install one or many *Raspberry Pi 3 B+* devices connected with one to four *Raspberry Pi Zero 1.3* devices each via [USB OTG](https://en.m.wikipedia.org/wiki/USB_On-The-Go) networking.
23## Preview
45Each device - Pi and Zero - will be connected to the network ```192.168.0.0/24```. Each Zero will be connected via _USB OTG_ to the Pi. That will establish a network between the two devices. On each Pi a network bridge will be configured to forward the traffic between the Pi ethernet port and the connected USB ports.
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Raspberry Pi PWM Fan Controller
Raspberry Pi PWM Fan Controller 1After mounting the GPIO hammer headers to my RPi Zero I am now ready to do some prototyping. The first thing I wanted to test is controlling a 4 pin PWM fan. So here is a short howto on that.
23# Prerequisites
4Besides a RPi Zero with pin headers you need a 4 pin [PWM (Pulse With Modulation)](https://en.wikipedia.org/wiki/Pulse-width_modulation) fan. I took a [Noctua NF-F12 5V fan](https://smile.amazon.de/gp/product/B07DXDQKZM/). Be aware that when you take a 12V fan it will damage your board!
5
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