On Mon, Jan 07, 2019 at 04:04:24PM -0500, John Harris wrote: > On Monday, January 7, 2019 3:18:10 PM EST Lennart Poettering wrote: > > hence my recommendation to derive the any uuid for purposes like this > > from /etc/machine-id, by using a HMAC of some kind (see other mail). > > I really don't think that this should be derived in any way from a machine > id, > if it really is meant to be used for counting users, rather than tracking.
Please read the man page [1]. The machine id cannot be derived from this number. On the other hand, using a derived UUID for this makes it easier to wipe identifying information from an image, because there is still just the one /etc/machine-id file that needs to be wiped. [1] https://www.freedesktop.org/software/systemd/man/sd_id128_get_machine_app_specific.html Zbyszek _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
