OT: DNS Zone policy and hidden masters (was: Re: OT?: Emailing from within filepro)

[Fairlight]

>From inside the gravity well of a singularity, Jay Ashworth shouted:
> On Sat, May 29, 2004 at 02:00:07PM -0400, Fairlight wrote:
> > I won't get into putting a primary nameserver on DSL.  Well, yes I will,
> > since DSL has absolutely zero guarantee of service under FCC regulations.
> > Doesn't matter what your contract with the telco says--under regs, they
> > don't have to fix it, you don't have any recourse if they don't.  This
> > means that if you want one on your side of the demarcation point, it
> > should be the secondary, not the primary, as that way at least the primary
> > would always be active and you'd have less delay.  As it happens, this
> > wouldn't normally cause much of a problem, as the system is designed to
> > have secondaries for a reason.
> 
> Actually, the sugested solution to this problem is to tell the world
> your ISP's NS is your primary (list it first), but tell that server
> it's a slave -- to your "real" "hidden" master server behind the DSL
> line.  If your zone expire time is long enough, and both servers do
> NOTIFY, this gets you the best of both worlds.

Sure--unless you set expire and refresh both to 20s and you lose sync on
your DSL.  Then your primary becomes useless because it has no zone data,
and your secondary is unreachable.  :)

mark->
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