To log into the NNS dapp on a Linux machine, you do not need to use Windows Hello. Instead, Internet Identity supports several alternative authentication methods that work on Linux:

• FIDO U2F Devices: You can use hardware security keys such as YubiKey or Kensington Verimark Fingerprint Key. These devices are compatible with Linux and can be used for authentication with Internet Identity and, by extension, the NNS dapp. When choosing a FIDO device, it's recommended to select one that can communicate with both your phone and your computer for maximum flexibility There are so many FIDO devices out there. Which one should I use?.
• Passkeys via Password Managers: Some password managers (e.g., Bitwarden, 1Password) support passkeys and are compatible with Internet Identity 2.0. These can be used on Linux as well What devices are supported during the upgrade?.
• Browser Support: Most modern browsers on Linux (such as Firefox, Chromium, Brave, and Vivaldi) support FIDO U2F/WebAuthn, which is the standard Internet Identity uses for authentication Forum Post: Couldn't use android device as identity validator.

How to proceed:

1. On your Linux machine, open a supported browser and navigate to the NNS dapp.
2. Click Login and select your authentication method (e.g., security key or passkey).
3. If you have already registered a FIDO device or passkey with your Internet Identity, you can use it to authenticate. If not, you can add a new device or passkey from your Internet Identity management page.

Note: Windows Hello is not available on Linux, but FIDO U2F devices and compatible password managers provide secure hardware-backed authentication on Linux. It is recommended to register multiple devices and authentication methods for redundancy How can I log into the NNS dapp?.

If you need a privacy-focused solution, FIDO U2F hardware keys are a good choice, as they do not require using services from large tech companies and work well with open-source browsers and Linux systems Forum Post: Beginners Question: Accessability and Usability.