How to size our servers for many zones hosting ?

[David Botham]

> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Aktarus73
> Sent: Wednesday, February 12, 2003 4:01 PM
> To: comp-protocols-dns-bind at isc.org
> Subject: Re: How to size our servers for many zones hosting ?
>=20
> Thanks a lot for your advice...
>=20
> But, a last question about this:
>=20
> > If you don't have the resources for setting up 4 or more NS you may
run
> > different instances (an AONS and a resolver) in the same box.
Running
> two
> > separate chrooted instances of bind in the same box.
>=20
> what about 53/tcp listening port ?
> How is it possible to have several instances of the same "domain" port
?
> We certainly need several NICs our even several virtual IP addresses,
> don't
> we ?

Use virtual IP addresses on the same NIC.  I did not catch your OS, but,
if you need help setting up these IP's, drop me a line...

Dave...

>=20
>=20
> <enrique at podernet.com.mx> wrote in message
> news:b2e3qm$5bm8$1 at isrv4.isc.org...
> > On Wed, 12 Feb 2003, Aktarus73 wrote:
> >
> > =3D>Very interesting facts...
> > =3D>
> > =3D>When plan to have 2 conventional Primary and Secondary Name
Servers to
> honor
> > =3D>basic domains registering.
> > =3D>Our customers will have typical zones with 2 NS, a couple of MX
and 2
> or
> 3 A
> > =3D>or CNAME references (@, WWW, FTP, POP3, SMTP will be a max).
> > =3D>
> > =3D>I suppose the best thing to do is to simulate load with
auto-generated
> fake
> > =3D>zones on an isolated box... just to see...
> > =3D>
> > =3D>I don't ynow if it is possible to limit our NS to be
"authoritative
> only"
> > =3D>(no recursive, no cache) and how to do this.
> > =3D>And does it worth regarding memory usage ?
> >
> > It is really worth to separate services indeed. In a server oro two
have
> > Authoritative Only Name Servers (resolving for your registered
domains).
> > Those AONS should be non-recursive, should answer queries to anyone.
> >
> > On the other hand you may set up a couple of resolving only name
> servers,
> > those should be able to be queried recursively only by your clients,
> have
> no
> > zones but hint and 0.0.127.in-addr.arpa.  Thus being cache only,
> >
> > If you are really worried about the load, you should not, unless you
> have
> a
> > really busy NS. The question is what is a busy NS? Well, in general
> terms
> a
> > really busy NS are those root servers or gTLD NS and in some cases
those
> ccTLD
> > NS. Other name servers may become busy if you have a few thousands
of
> domain
> > names. Resolvers would become busy with a few thousands clients
> querying.
> >
> > If you don't have the resources for setting up 4 or more NS you may
run
> > different instances (an AONS and a resolver) in the same box.
Running
> two
> > separate chrooted instances of bind in the same box.
> >
> > --
> >
> > -- 'You tread upon my patience' -- William Shakespeare, "Henry IV"
> >
> > The river is within us, the sea is all about us.
> >
>
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> =3D=3D
> =3D=3D=3D
> > Jos=E9 Enrique D=EDaz Jolly e-mail: enrique at podernet.com.mx
> >
>
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> =3D=3D
> =3D=3D=3D
> > @(#) $Id: signature.podernet,v 1.1 2003/01/21 23:45:50 ediaz Exp $
> >
> >
>=20