where to declare

[Gerard M. Mamou]

Hello
Thank you for the answer
But I still have a question:
I have a Primary NS for my.domain
My ISP is willing to be my Secondary NS for *ONLY* my.domain
so when I upgrade the my.domain file I am getting AFXR, fine!
If I delegate for subzone 
bogus.my.domain (2 MX records and maximum 3 A)
when I upgrade this subzone, I am alone for the NS and I do not have any
secondary NS.

Q1: Is there a way to become a secondary NS for a zone and all its
subzone?
rather than explicit??

Q2: I just have all my A, MX, TXT records for bogusbis.my.domain in 
my.domain file except SOA (of course) and no NS record.
When I update my.domain file, I am getting AFXR from my ISP name server,
that is fine!
And the good thing is that my secondary ISP name server  knows about
bogusbis.my.domain A, MX, TXT and so machines.bogusbis.my.domain .....
Is it technically speaking OK to do this.
TIA
Gerard Mamou



Michael Voight a écrit :
> 
> It is an obligation.
> If you tell my.domain to delegate the zone bogus.my.domain, then ALL
> records for bogus.my.domain MUST be in that zone. What would be the
> purpose of delegating a subzone if you weren't going to look there for
> the information??
> 
> In summary: Yes, this is an obligation. It is how DNS works. If you have
> a subzone, then that is where you go to look for records for the
> subzone.
> 
> Michael
> 
> "Gerard M. Mamou" wrote:
> >
> > Hello
> > and thank you for the answer.
> > Your advice is it a recommandation or an obligation?
> > And why it is working when I declare it in the my.domain file?
> > Do you mean that a external sendmail is checking the MX record only in
> > the
> > bogus.my.domain?
> > TIA
> > Gerard Mamou
> >
> > marka at isc.org a écrit :
> > >
> > > > Hello
> > > > I have a zone my.domain and a subzone bogus.my.domain
> > > > I have a Name Server ns.my.domain and ns.bogus.my.doamin (which is the
> > > > same A, same machine)
> > > > Where should I declare the MX records for bogus.my.domain
> > > > in the file of my.domain or in the file of bogus.my.domain????
> > >
> > >         In the zone file for "bogus.my.domain".
> > >
> > >         Mark
> > > >
> > > > my.domain SOA ...
> > > >
> > > > bogus.my.domain       IN      NS      ns.bogus.my.domain
> > > > bogus.my.domain IN    MX      mail.bogus.my.domain
> > > > ..
> > > > end of db for my.domain
> > > >
> > > > or
> > > >
> > > > my.domain SOA ...
> > > > bogus.my.domain       IN      NS      ns.bogus.my.domain
> > > > ..
> > > > end of db for my.domain
> > > >
> > > > bogus.my.domain SOA ...
> > > >               IN MX mail.bogus.my.domain
> > > > end of db for bogus.my.domain
> > > >
> > > > Is there any differences??
> > > > How it is resolved??
> > > > Which one come first???
> > > > Which one is better???
> > > > I have also a slave for my.domain ONLY in my ISP name server
> > > > Maybe the First method is better in case ns.bogus.my.domain come down
> > > > the record will be resolved anyway because it is in my.domain file???
> > > > Any helps?
> > > > TIA
> > > > Gerard Mamou
> > > >
> > > >
> > > --
> > > Mark Andrews, Internet Software Consortium
> > > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > > PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org