Using Wild card in DNS record for subdelegation

[Kevin Darcy]

Mark's answer was "No. '* NS' has undefined semantics". Apparently you 
need a more rigorous response. Try reading sections 4.3.2 and 4.3.3 of 
RFC 1034. I think you'll find that it is far from clear how a '* NS' 
wildcard would work, or even if it would work at all. That's what Mark 
meant by "undefined semantics". Just avoid this can of worms. Delegate 
each subzone individually, as DNS administrators have been doing since 
the beginning.

                                                                         
                                             - Kevin


VSSS wrote:

>Hi,
>    I am using Bind 8.3.4. 
>
>    Is there a way to delegate of all 3rd level domains to a name
>server without creating NS entries for all the 100 3rd level domains
>like below :
>            
>In the  zone file of db.def.com
>
>domain1     IN NS    svr1.def.com
>domain2     IN NS    svr2.def.com
>domain3     IN NS    svr3.def.com
>....
>...
>domain100  IN NS svr3.def.com
>
>Can I use wild card to save entering all the 100 domain describe above
>?
>
>
>Many thanks
>VSSS
>Mark Andrews <Mark_Andrews at isc.org> wrote in message news:<cl1kh3$2d7d$1 at sf1.isc.org>...
>  
>
>>>Recently I hv a requirement to subdelegate out any 3rd level domain of
>>>abc.com to another DNS server. Can I define as follow with a wild card
>>>?
>>>      
>>>
>>	No.  "* NS" has undefined semantics.
>> 
>>    
>>
>>>Under the dbfile for the 2ndlevel.com zone file.
>>>$Origin abc.com IN SOA ....
>>>..
>>>..
>>>* IN NS     svr1.def.com.
>>>svr1.def.com.    IN A 55.55.55.55
>>>
>>>
>>>E.g, Anyone performing query to www.aaa.def.com; www.bbb.def.com;
>>>www.ccc.def.com; www.xxx.def.com ... will be forwarded to svr1.def.com
>>>name server.
>>>
>>>Thanks alot
>>>VSSS
>>>
>>>      
>>>
>
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