Re: Should a nameserver know about itself?

[Mark . Andrews]

> 
> On Wed, 9 May 2001, James Raftery wrote:
> 
> > And for IE too. An authoritative nameserver is authoritative for a
> > finite set of zones. There is no reason to presume the auth. server's
> > own A RR is in one of the zones it's serving.
> 
> Right.  Now that we've gotten that out of the way, can anyone suggest a
> *reliable* test for verifying that a nameserver is responding ( which is
> seperate from verifying that a nameserver is authoritatively serving a
> given zone )

        Send it a non-recursive query.  A nameserver should always
        answer even if it is just a header containing refused,
        servfail or notimp.

        With this in mind the status opcode would be a good one to
        use.  It should always come back notimp/refused.

        Mark
> 
> -- 
>   Bruce Campbell <[EMAIL PROTECTED]>                +61-7-3367-0490
>                       Systems Administrator                          APNIC
> 
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: [EMAIL PROTECTED]