stateless-workstation-config
authorized_keys
| stateless-workstation-config | authorized_keys | |
|---|---|---|
| 1 | 1 | |
| 22 | 1 | |
| - | - | |
| 6.4 | 0.0 | |
| 3 months ago | almost 2 years ago | |
| Jinja | Shell | |
| - | - |
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stateless-workstation-config
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How often should I rotate my SSH keys?
> An even more robust approach is to use some kind of hardware token that can sign short-lived ssh keys, and teach all your servers how to deal with those. That’s neat, but it’s hard to deploy (needs custom ssh settings).
Ahem, no. I use Yubikeys for a few years now. They are literally braindead to use, and works out of the box in recent Ubuntu. Here is an Absible role to get started: https://github.com/cristiklein/stateless-workstation-config/...
Stop making excuses and start protecting your SSH keys!
Disclaimer: I'm not compensated in any way by Yubico, but their product is so darn good that I really want people to start using it.
authorized_keys
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How often should I rotate my SSH keys?
Definitely not appropriate for protecting Real Infrastructure, but for my handful of personal machines I put my authorized keys in a Google Doc and configure hosts to download it using `AuthorizedKeysCommand`.
I have a hardware-backed "doomsday key" to use if the Google Doc stops working.
Writeup and script at https://github.com/mmdriley/authorized_keys
What are some alternatives?
secretive - Store SSH keys in the Secure Enclave
openssh-sk-winhello - A helper for OpenSSH to interact with FIDO2 and U2F security keys through native Windows Hello API
sekey - Use Touch ID / Secure Enclave for SSH Authentication!
bless - Repository for BLESS, an SSH Certificate Authority that runs as a AWS Lambda function
sharkey - Sharkey is a service for managing certificates for use by OpenSSH
thoughts - Just my public thoughts, think of it like a blog I never update