how a name DNS can have several @ IP in different lan?

[Roger Ward]

Consider using what is commonly known as "Views" in bind.  You setup a
listener on your LAN interface for a single IP (or as many network cards as
you need for your network) and configure different views to respond to
queries from your IP address range (for your internal LAN) with internal DNS
data.  Then the rest should get your public DNS data.  This means two
things:

- Essentially you'll be running two domains (one internal, one external)
- Once you setup views you can configure your DNS server not to answer
recursively for outside requests
	(if someone queries YOUR nameserver for something like www.isc.org,
then your DNS server can optionally return just the delegation information,
and not the IP address).

Hope this helps!  Feel free to ask more questions...

Roger

-----Original Message-----
From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On Behalf
Of MOULARD Guillaume OCISI
Sent: Wednesday, October 01, 2003 10:13 AM
To: bind-users.at.isc.org at fairesuivre.com
Subject: how a name DNS can have several @ IP in different lan?


Hi,=20

I have a delegation from my domain name. I want to create new services = in
my domain :=20 myservice.mydomain.com.

example for one of the 3 services:
In Internet, the good ip @ is: internet: myservice.mydomaine.com -> =
217.167.31.20 In my lan, there is a different @: private lan1:
myservice.mydomaine.com =
-> 10.241.14.15
In other privale lan, the good adress is: private lan2: =
myservice.mydomaine.com -> 10.232.0.250

There is a NAT from lan 1 to lan 2=20
@lan2(10.232.0.250) -> @lan1(10.241.14.15)

All sercices in mydomaine.com are used by internet.=20
only 3 services in mydomaine.com are used in internet, lan1 and lan2 For
these services, it is necessary to have exacly the same name, and = the same
domaine.

If I configure my DNS with 217.167.31.20, it is necessary to create 2 =
others DNS and for each DNS syncronise manually all @ for services in =
mydomaine.com.

I don't know a better architecture ?=20
do you have some information, for a beginner in DNS.

Regards,=20
Guillaume Moulard=20