no glue A record in child domain

2009-07-18 Thread Tech W. 

Hello gurus,

Say I have this glue record in parent's DNS:

child.example.com.  IN NS  ns.child.example.com.
ns.child.example.com. IN A  12.34.56.78

Then in child's zone file, I don't include the A record for  
"ns.child.example.com.".

What will be happened? Does it affect client's query to other records in this 
child domain?

Thanks.


Regards,
Wah.


  

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Re: no glue A record in child domain

2009-07-18 Thread Mark Andrews 

In message <961314.13824...@web15606.mail.cnb.yahoo.com>, "Tech W." writes:
> 
> Hello gurus,
> 
> Say I have this glue record in parent's DNS:
> 
> child.example.com.  IN NS  ns.child.example.com.
> ns.child.example.com. IN A  12.34.56.78
> 
> Then in child's zone file, I don't include the A record for  "ns.child.exampl
> e.com.".

Then you have a broken delegation.
 
> What will be happened? Does it affect client's query to other records in this
> child domain?

Lookups will fail sooner or later when the interative
resolver learns that the A record does not exist.  It just
a matter of time.

Mark
 
> Thanks.
> 
> 
> Regards,
> Wah.
> 
> 
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> _
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Re: no glue A record in child domain

2009-07-18 Thread Tech W. 


--- On Sat, 18/7/09, Mark Andrews  wrote:

> From: Mark Andrews 
> Subject: Re: no glue A record in child domain
> To: "Tech W." 
> Cc: bind-users@lists.isc.org
> Received: Saturday, 18 July, 2009, 10:22 PM
> 
> In message <961314.13824...@web15606.mail.cnb.yahoo.com>,
> "Tech W." writes:
> > 
> > Hello gurus,
> > 
> > Say I have this glue record in parent's DNS:
> > 
> > child.example.com.  IN NS 
> ns.child.example.com.
> > ns.child.example.com. IN A  12.34.56.78
> > 
> > Then in child's zone file, I don't include the A
> record for  "ns.child.exampl
> > e.com.".
> 
>     Then you have a broken delegation.
>  
> > What will be happened? Does it affect client's query
> to other records in this
> > child domain?
> 
>     Lookups will fail sooner or later when
> the interative
>     resolver learns that the A record does
> not exist. 


Thanks Mark.
How will a LDNS behave under this case?

Regards,
Wah.



  

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A simple question, please help

2009-07-18 Thread Ken Lai 

my bind server have a default option

forwarders { 208.67.222.222; 208.67.220.220; };

to send all query to OpenDNS.

but some answer could not access, while a answer can which solved by another 
server

i put these in the config:

zone "x.com" {
 type forward;
 forwarders { x.x.x.x; };
};

but this not work.

how can i make this happen. 


THANKS.


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