On 11/08/2016 06:25 PM, Andrew Lutomirski wrote: > On Tue, Nov 8, 2016 at 3:19 PM, Neal Gompa <ngomp...@gmail.com> wrote: >> On Tue, Nov 8, 2016 at 6:14 PM, Zbigniew Jędrzejewski-Szmek >> <zbys...@in.waw.pl> wrote: >>> On Tue, Nov 08, 2016 at 05:25:36PM -0500, Matthew Miller wrote: >>>> On Tue, Nov 08, 2016 at 04:49:42PM -0500, Stephen Gallagher wrote: >>>>> SUSE generates a random name of the format linux-XXXXXX (I'm not sure how >>>>> many >>>>> My proposal is that we should consider changing the default hostname for >>>>> Fedora >>>>> 26 to be either FED-XXXXXXXXXXX or FEDORA-XXXXXXXX. The former allows for >>>>> a >>>> >>>> How about non-yelly Fedora-XXXXXXXXXXX? Since SUSE apparently does >>>> lower case, that should be fine, right? >>> >>> Bastian Nocera also filed >>> https://bugzilla.redhat.com/show_bug.cgi?id=1392925, >>> where he proposes "fedora" as the hostname. I think "fedora" is better than >>> "localhost", and a non-constant hostname would be even better. >>> For interactive installs (like with anaconda) it would be great if we could >>> ask for the hostname. For non-interactive ones, "Fedora-[0-9a-z-]{8}" seems >>> like a good option (*). It would give "branding", and solve the freeipa >>> issues. >>> It would also be a good default for the interactive case, so that people can >>> "click through" without having to pick anything. >>> >>> (*) The suffix could include dashes for more possibilities, but they should >>> not be adjacent or at the end. >> >> I'm in favor of defaulting to "Fedora-[0-9a-z-]{8}" myself. However, >> I'm concerned that people don't realize that we can, in fact, set the >> hostname during installation. People usually don't because Anaconda >> doesn't currently make that mandatory or otherwise note that it's >> possible during the initial panel of spokes (hint: it's the networking >> spoke), and so the default of "localhost" continues on without anyone >> being the wiser. >> >> > > If the hostname is non-constant, can we also arrange that, by default, > this hostname is never sent over the network? In particular, I think > that DHCP requests should *not* include this hostname. We're already > starting to randomize MAC addresses -- there's no reason to give a > persistent per-installation identifier to every network.
If this is a problem (and I'm not necessarily convinced it is), it's a problem already for anyone using DHCP who set a hostname manually. The fact that the default happens to be constant (and therefore indistinguishable) is a side-effect. If this is something that is genuinely concerning from a privacy point of view, then that should be changed in the DHCP client software rather than at the default hostname level. If it's not acceptable to send a unique default hostname then it must be equally unacceptable to send a manually selected hostname. (At least a randomly-generated one is only unique; a chosen one may in fact be possible to use for individual identification as well.)
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