forward unknown query

Junior Arnold arnold7979 at hotmail.com
Sun Nov 2 03:36:08 UTC 2003


Barry Finkel <b19141 at achilles.ctd.anl.gov> wrote in message news:<bnts61$1qvq$1 at sf1.isc.org>...
> arnold7979 at hotmail.com (Junior Arnold) wrote:
> 
> >Sorry if this question has been asked (and answered) before but i've
> >been googling for sometime with no luck:
> >
> >Here comes my ques:
> >
> >I have foobar.com hosted somewhere else with www.foobar.com = 1.2.3.4
> >and mail.foobar.com = 5.6.7.8.
> >
> >I have a LAN with 20 PC and i want to do local (internal) DNS where
> >every PC has a name (pc1.foobar.com = 192.168.0.100, pc2.foobar.com =
> >192.168.0.101). Hence, I created a master zone called foobar.com.
> >
> >Now, how do i forward unknown queries such as www.foobar.com or
> >mail.foobar.com to my hosting service provider's DNS (or perhaps any
> >internet'able DNS such as my ISP's one)?
> 
> If you have a DNS server that is the master for
> 
>      foobar.com
> 
> Then one of three things must be true:
> 
>      1) You have an "A" record in your zone for
> 
>              www.foobar.com
> 
>      2) You have a subdomain
> 
>             www.foobar.com
> 
>         of your primary domain
> 
>              foobar.com
> 
>         and that subdomain is either a zone mastered on your server or
>         mastered on someone else's server.
> 
>      3) There is no such machine 
> 
>              www.foobar.com
> 
>          and thus there is no record in DNS for that name.
> 
> Summary - for the zone foobar.com, ALL of the records must be in your
> master zone or be in a delegated sub-domain zone.  If neither the master
> zone or the delegated sub-domain zone contain any records for
> 
>      www.foobar.com
> 
> then that nodename does not exist in DNS.  You are authoritative for
> the information in foobar.com, and if the info is not in your DNS,
> nothing is going to make it look in some other zone on some other 
> server.
> ----------------------------------------------------------------------
> Barry S. Finkel
> Computing and Instrumentation Solutions Division
> Argonne National Laboratory          Phone:    +1 (630) 252-7277
> 9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
> Building 222, Room D209              Internet: BSFinkel at anl.gov
> Argonne, IL   60439-4828             IBMMAIL:  I1004994

Then i guess i'd have to manually insert an A record for both
www.foobar.com and mail.foobar.com .... the forward zone (the name
"forward") used to confuse me into thinking it as forward something
else to external DNS if not found in local DNS.... lol, guess i'm
gonna slap myself with a copy of dns hand book ;P

Thanks Margolin and Finkel ;)

Regards,
Jr. Arnold


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