I am sooo confused...
Kevin Darcy
kcd at daimlerchrysler.com
Fri May 3 19:09:43 UTC 2002
Len Conrad wrote:
> >Len Conrad <LConrad at Go2France.com> wrote in message
> >news:<aas88s$ag9$1 at isrv4.isc.org>...
> > > >********* db.westwood.st.mycompany.com *********
> > > >$TTL 3h
> > > >westwood.st.mycompany.com. IN SOA westwood.st.mycompany.com. (
> > > > 2002050210 ; Serial
> > > > 3h ; Refresh
> > > > 1h ; Retry
> > > > 2w ; Expire
> > > > 1h ) ; Negative caching
> > > >
> > > >; Name Servers
> > > >westwood.st.mycompany.com. IN NS westwood.st.mycompany.com.
> > >
> > > you need 2 NS's here.
> >
> >Can you tell me why I need two NS's here? Does this mean I need to
> >run two DNS servers?
>
> technically, one will work. 2 or more is conventional for reliability
> through redundancy.
Actually, it's *required*:
> A given zone will be available from several name servers to insure its
> availability in spite of host or communication link failure. By
> administrative fiat, we require every zone to be available on at least
> two servers, and many zones have more redundancy than that.
>
(RFC 1034, Section 4.1)
If you don't comply, the RFC stormtroopers will be showing up at your doorstep.
- Kevin
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