On Suns the hostid is actually encoded on a EPROM chip in a socket on
the motherboard (though it is actually possible to switch these chips
from similar hardware). It is designed to be non-spoofable, though there
is a fairly easy way with dynamic libraries to hack it (not that I'm
advocating this). I'm not sure exactly how Linux generates the hostid
but it's enlikely that there is anything on a PC motherboard (short of
perhaps the LAN MAC) to generate a unique, consistent, and non-spoofable
hostid.
- Matt
John Birkrem wrote:
>
> My only thought is this, If Linus dies, and all Linux development is 100% to
> the indivual companies, what happens to the portability and unity? Or is this
> not an issue?
>
> thanks
> jb
>
> > Date: Wed, 28 Jun 2000 10:16:33 -0400
> > From: Matt Fahrner <[EMAIL PROTECTED]>
> > X-Accept-Language: en
> > MIME-Version: 1.0
> > To: R Swiernik <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> > CC: [EMAIL PROTECTED]
> > Subject: Re: Leda (Linux) NIS server
> >
> > Regarding using Linux for our NIS and DNS servers...
> >
> > R Swiernik wrote:
> > >
> > > How about a commercial supported OS for $75...
> > >
> > > From the company that created NIS...
> > >
> > > How critical is your network system...
> >
> > I actually like Solaris a lot so it wouldn't bother me to use the
> > Solaris operating system. On the other hand, I am adverse to paying well
> > over twice the cost for a system that doesn't even perform as well. I
> > would probably be happy with Solaris x86, but Solaris Sparc is in my
> > opinion increasing becoming a waste of money. A beefy PC is far more
> > recyclable than any Sparc based box.
> >
> > RedHat is $0 (or $75 if you want to buy the distributed CD). It is both
> > a commercially supported OS and it is a non-commercially supported OS,
> > meaning that rather than having one party to fix everything you have
> > both business units (RedHat, SuSe, IBM, etc.) as well as an entire open
> > source community. Additionally if they won't fix it, you can. The
> > ability to access source code has already saved enormous time on our
> > part (though Sun is starting to offer this, maybe?).
> >
> > Incidentally the last problem with Linux NIS we solved was in fact a Sun
> > bug that had been bugged since 1993 and not fixed. Increasingly when I
> > put tickets in with Sun they receive little attention or I am told it's
> > a feature or my problem. My last RedHat issue took exactly 1 day to be
> > resolved through Linux mailing lists. Mike Sterret's last one took 5
> > minutes.
> >
> > I like Solaris, but I really can't see the argument against Linux.
> >
> > - Matt
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