[Techtalk] "virtual" DNS resolution?

[Cari Davidson]

Thanks Rasjid and Didar.   =D

Based on what both of you say, it seems I need to change DNS setup 
according to Didar so that domain.com and  service.domain.com point to 
the same _external_ IP.  Then, the router forwards those ports to the 
appropriate machine (in my case, the same one) by port. 

Thank you both.  I love that you've given me a background so that I not 
only can solve the problem, but I understand it.

-- Cari Davidson

Didar Hussain wrote:

>Hi Cari,
>
>Hope I'm not being too eager in answering this one.
>
>You just need to setup the domain.com "zone" and add "CNAME"
>entries in it which will do the stuff that you want. The LDP
>DNS-HOWTO is a good start to learn DNS.
>
>Of course, all this is applicable if you are in control of
>the DNS server. If OTOH, you are using some Dynamic DNS
>type service like dyndns.org or myip.org etc., then you are
>right on with the NAT port redirection thingy, which you will
>have to use in either case if you want the world to access
>the internal Linux box.
>
>The biggest thing you need to take care about are the "."
>that has caused me several "egg-on-my-face" situations.
>
>`named-checkconf' and `named-checkzone' are two very helpful 
>commands I learnt about from a colleague of mine.
>
>
>HTH,
>
>Didar
>
>--------------------------------------------------------------------
>
>Your reasoning powers are good, and you are a fairly good planner.
>
>
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