Setting up a new YubiKey as a second factor is easy—your browser walks you through the entire process. However, setting up a YubiKey to sign your Git commits and Secure Shell (SSH) authentication is a very different experience. In this post, I’ll walk through configuring a YubiKey and highlight some of the things I’ve learned along the way. I’ve used GPG for years, but it didn’t really "click" for me until I sat down and...

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