Fingerprint scanner: Difference between revisions

Zilti (talk | contribs)
tod is often unnecessary.
Add a section about how to configure fingerprint login like in other distros
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Just run <syntaxhighlight lang="bash">sudo fprintd-enroll</syntaxhighlight> or use the UI in the Desktop Environment if available.
Just run <syntaxhighlight lang="bash">sudo fprintd-enroll</syntaxhighlight> or use the UI in the Desktop Environment if available.


== Login ==
While <code>services.fprintd.enable = true;</code> enables fingerprint login for the majority of display manager via the corresponding [https://search.nixos.org/options?channel=unstable&show=security.pam.services.%3Cname%3E.fprintAuth&from=0&size=50&sort=relevance&type=packages&query=pam.services.%3Cname%3E. PAM module], it can sometimes disable the ability to login using a password. This is addressed in the GitHub issue [https://github.com/NixOS/nixpkgs/issues/171136 171136]. In that issue, a possible workaround is addressed using a custom PAM module for the gnome display manager:<syntaxhighlight lang="nixos">
security.pam.services.login.fprintAuth = false;
security.pam.services.gdm-fingerprint = lib.mkIf (config.services.fprintd.enable) {
      text = ''
        auth      required                    pam_shells.so
        auth      requisite                  pam_nologin.so
        auth      requisite                  pam_faillock.so      preauth
        auth      required                    ${pkgs.fprintd}/lib/security/pam_fprintd.so
        auth      optional                    pam_permit.so
        auth      required                    pam_env.so
        auth      [success=ok default=1]      ${pkgs.gnome.gdm}/lib/security/pam_gdm.so
        auth      optional                    ${pkgs.gnome.gnome-keyring}/lib/security/pam_gnome_keyring.so


        account    include                    login


        password  required                    pam_deny.so
        session    include                    login
        session    optional                    ${pkgs.gnome.gnome-keyring}/lib/security/pam_gnome_keyring.so auto_start
      '';
    };
};
</syntaxhighlight>
[[Category:Hardware]]
[[Category:Hardware]]