In some mail from Julian Elischer, sie said:
>
> Darren Reed wrote:
> >
> > In some mail from Kris Kennaway, sie said:
> > >
> > >
> > > --rwEMma7ioTxnRzrJ
> > > Content-Type: text/plain; charset=us-ascii
> > > Content-Disposition: inline
> > > Content-Transfer-Encoding: quoted-printable
> > >
> > > On Mon, Apr 16, 2001 at 02:03:11AM -0700, Kris Kennaway wrote:
> > >
> > > > Here's a patch ported from OpenBSD which randomizes this (supposedly
> > > > such that it respects the constraint of not wrapping within the
> > > > prescribed time period). I should wrap it in a sysctl, I guess.
> > > >=20
> > > > http://www.freebsd.org/~kris/ipid.patch
> > >
> > > Okay, I did this and updated the patch, with the sysctl defaulting to
> > > off since the random algorithm does add some amount of overhead.
> > >
> > > > Comments?
> >
> > You should optimize it for mod being 2^n-1 (or make that a requirement).
> >
> > Also, drop the HTONS statements, they no longer make sense. Before ip_id
> > was a counter and so it made sense (sorta) to change its byte ordering to
> > network. Now it's just a random number so there is no longer any need.
>
> there is a site that calculates server uptime from these numbers.
> All the leading machines are freeBSD. When you do this it will
> no-longer be able to track us :-(
IMHO, extraordinarily large uptimes are nothing to be proud of and
say nothing about the quality of software.
I'd almost go so far as to say uptimes greater than 1 year indicate
that the system administration practises need review.
Darren
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