On 11/09/2016 08:02 AM, Simo Sorce wrote: > On Tue, 2016-11-08 at 23:05 -0500, Stephen Gallagher wrote: >> 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.) > > Although this is true, one thing we could do is set a default hostname > that is static ("fedora" or similar is fine), and teach the utilities > used to join an AD/IPA/etc.. domain to generate a new random hostname if > they detect the hostname is the generic "static" one.
I feel like that's solving a symptom (and one we'd have to keep solving every time we encountered something for which a non-unique hostname would be a problem). It's an option though, of course.
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