Cc:
dnsop@cafax.se
From:
Mark.Andrews@isc.org
Date:
Fri, 14 Nov 2003 04:14:59 +1100
In-reply-to:
Your message of "Thu, 13 Nov 2003 10:28:27 MDT." <3FB3B12B.9000000@ehsco.com>
Sender:
owner-dnsop@cafax.se
Subject:
Re: well-known addresses / was DNS discovery
> > Mark.Andrews@isc.org wrote: > > > It's not a requirement if the ONLY thing you want clients > > to know about the DNS is the addresses of nameservers. In > > the real world there are lots of organisations that want > > to push other configuration details out. The proposals > > you are competing with can support this. > > Well... It's 'possible' to pass a search list to the resolvers as part of > a startup negotiation, it's just not necessary, and it may even be > determined as undesirable after some more thinking. No one is saying you have to supply the information. What I am saying is that the *ability* to do this is crucial in some environments. I don't want my ISP to supply a search path. I also don't want my ISP to depend upon that search path in there HTML documents. I have also been a network adminstator in a business. In that envirionment setting search lists is important. > In particular, if the logic focuses on choosing a candidate server versus > using any available server, then the server part of the algorithm can > require "return a list of SOAs for which you are authoritative", and the > client algorithm can allow the resolver to use the owner names of the SOAs > as the search list. Extending this logic a bit, it's feasible that any > particular implementation could provide a configuration ~directive that > filtered the domains which the server should return, thereby providing a > way for managers to control the search list array in use by the clients. > > Negotiation versus queries isn't the focus of the current WKA proposal, of > course, but as I already said, I think that's the second necessary change > (switching to multicast is the first; anycast is a non-starter). > > -- > Eric A. Hall http://www.ehsco.com/ > Internet Core Protocols http://www.oreilly.com/catalog/coreprot/ > > #---------------------------------------------------------------------- > # To unsubscribe, send a message to <dnsop-request@cafax.se>. -- Mark Andrews, Internet Software Consortium 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews@isc.org #---------------------------------------------------------------------- # To unsubscribe, send a message to <dnsop-request@cafax.se>.