[Pkg-exim4-users] Different nameservers for different routers/exim-instances?

Sebastian Posner sposner at gmx.de
Wed Jun 3 07:10:50 UTC 2009

"Andreas J. Guelzow" <aguelzow at math.concordia.ab.ca>:

[Get exim to use zoneinformation from two different nameservers]

> I think the question is why do you need two DNS servers in play here.
> DNS servers can be set up to be dual (or multi-) horizon so they will
> give different answers to different clients. So you could have A DNS
> that knows everything but sends the obscure info only to internal hosts.

That's a decision on OSI-Layer 8. NS A is maintained by Unit A, NS B by unit B.

Installing a nameserver with different views would put *me* in the responsibility to maintain lists of clients that need view a, b or c - this is not feasible.

I could set up my own private little nameserver on my mail-box perfectly fit for my needs, but the box does also offer other services which need "pure" DNS resolving, so this isn't really an option.

Besides.. I don't want to have infrastructure services running on every second machine, this wouldn't be maintainable, especially given that the tech-staff currently operating these boxes is already "technically challenged" with the current complexity. 

I would even be happy with the possibility to give the whole exim-instance another nameserver to use; then I could at least split-horizon the MTA on this machine and set up static mail routing for the domains in regard to go to the other "virtual exim" which uses the "sick" nameserver..

GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95 Euro/mtl.!

More information about the Pkg-exim4-users mailing list