[Nut-upsdev] DNS-SD (was Re: [nut-commits] svn commit r2974 - branches/nut-scanner/tools/nut-scanner)

Arnaud Quette aquette.dev at gmail.com
Wed Apr 20 14:15:29 UTC 2011

damn, I forgot the attachment!

2011/4/20 Arnaud Quette <aquette.dev at gmail.com>

> 2011/4/20 Charles Lepple <clepple at gmail.com>
>> On Apr 19, 2011, at 10:26 AM, Arnaud Quette wrote:
>>  what still puzzles me is that "_upsd._tcp" is used as Service Type.
>>> while "nut" is used as the Service Name.
>>> (instant update) I've just made a quick test with Frédéric, and the "nut"
>>> name *must* be unique: each system that publish a nut service availability
>>> has to have a unique Service Name!
>> It looks like the convention is to use the hostname or MAC address to make
>> the DNS-SD name unique. "man avahi.services" mentions a "%h" format
>> specifier and an XML attribute to insert the local hostname.
> right, thanks for these info Charles.
> note that service files also use a friendly name like "Printer on %h".
> In light of this, I've shaped up the attachment.
> The things I'd probably like to add in <txt-record> are:
> - running mode (ie none, standalone, netserver, netclient)
> - (optional) NUT protocol version or at least NUT version (can use
> - (optional) security mode
> But service files are not suitable for this, conversely to the
> avahi-publish call.
> I need to have more use cases, but the idea is to be able to select (ie
> filter on):
> - non configured instances, to configure these
> - instance types, like netserver for netclient configuration
> If you have ideas in mind related to that, I'm all hears.
> cheers,
> Arnaud
> --
> Linux / Unix Expert R&D - Eaton - http://powerquality.eaton.com
> Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
> Debian Developer - http://www.debian.org
> Free Software Developer - http://arnaud.quette.free.fr/
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