Date: Sat, 7 Apr 2007 21:31:38 +0100 From: Ceri Davies <ceri@submonkey.net> To: Andrew Pantyukhin <infofarmer@FreeBSD.org> Cc: Pawel Jakub Dawidek <pjd@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: Host ID. Message-ID: <20070407203138.GL90410@submonkey.net> In-Reply-To: <cb5206420704070808t183dd708v489564d27c0d34dc@mail.gmail.com> References: <20070407120656.GD63916@garage.freebsd.pl> <cb5206420704070607j7afe5349r180151dac1ec3e92@mail.gmail.com> <20070407145154.GG63916@garage.freebsd.pl> <cb5206420704070808t183dd708v489564d27c0d34dc@mail.gmail.com>
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--qyHYMwAXsHLOQihY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Apr 07, 2007 at 07:08:18PM +0400, Andrew Pantyukhin wrote: > On 4/7/07, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: > >On Sat, Apr 07, 2007 at 05:07:25PM +0400, Andrew Pantyukhin wrote: > >> - Is Windows-style hardware ID's hashing totally ruled out? > > > >I know nothing about it... >=20 > Well, maybe something like hashing MAC of the first NIC > to get the initial ID... But then there's always the > probability that we initialize several systems putting > the same NIC into each of them... >=20 > >> - How does it work in other OS'es? (e.g. solaris /bin/hostid) > > > >On OpenSolaris, if I understand the code right, hostid is derived from > >hw_serial, and hw_serial is taken from: > > > > * On sparc machines, read hw_serial from the firmware at boot time > > * and simply assert Sun is the hardware provider. Hmm. > >[...] > > * On x86 machines, read hw_serial, hw_provider and srpc_domain from > > * /etc/bootrc at boot time. >=20 > There's even a business [1] selling software to change > Solaris hostid for ??49. Should I squat freebsdhostid.com? :) >=20 > [1] http://www.solarishostid.com/ Hmm. The host id lives on the, trivially swappable, SCC on a number of recent Sun systems. Ceri --=20 That must be wonderful! I don't understand it at all. -- Moliere --qyHYMwAXsHLOQihY Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGF/+qocfcwTS3JF8RAihDAKDGLV3TGMNbaQT8ro1V3uNdfftjDgCggmBo 7U73IgmmypR0Tt5kAjqmA34= =VRF1 -----END PGP SIGNATURE----- --qyHYMwAXsHLOQihY--
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