Teemu, I don't believe this is a topic where consensus in MIF is very relevant. It needs to be decided in a much wider community rather than as a subsidiary question in a MIF document. I suggest leaving it FFS (for further study) in MIF.
Regards Brian Carpenter On 2011-10-20 20:01, [email protected] wrote: > Hi Ray, > >> -----Original Message----- >> From: ext Ray Bellis [mailto:[email protected]] >> Sent: 19. lokakuuta 2011 13:40 >> To: Savolainen Teemu (Nokia-CTO/Tampere) >> Cc: <[email protected]>; <[email protected]>; <[email protected]>; >> <[email protected]>; <[email protected]>; <[email protected]>; >> <[email protected]> >> Subject: Re: [dnsext] [mif] 2nd Last Call for MIF DNS server selection >> document >> >> I have concerns about §4.6: >> >> "A bare name (a name without any dots) MUST be first treated as a pre- > DNS >> hostname, and only after that the name SHALL be appended with domain >> information and described DNS server selection logic be utilized." >> >> When new gTLDs are introduced it is likely for brand-name gTLDs that they >> will wish to use bare names in the DNS (i.e. a single label hostname) for > their >> primary web sites. >> >> Hence bare names may become much more frequently used as DNS names, >> and §4.6 wouldn't permit those to work unless '.' is also in the suffix > list. >> I'd like to hear the authors' thoughts on these. I'm not sure that this > draft >> necessarily needs any significant changes - it may only require changes to >> ensure that bare names are also considered as potential DNS names in their >> own right. > > Okay, I understand there is no clear consensus yet how these single label > names should be handled by the resolvers at the first place? Should resolver > first treat them as pre-DNS hostnames, then as DNS hostnames, and then try > search list? The DNS server selection logic would be applied already when > resolving single label name, i.e. the network could provide a single label > domain "brand" in the domains list. > > Maybe section 4.6 could be like this, perhaps (changes in second paragraph > and title)? > -- > 4.6. Interactions with DNS search lists and single label hostnames > > A node may be configured with DNS search list by DHCPv6 > OPTION_DOMAIN_LIST [RFC3646] or DHCPv4 Domain Search Option > [RFC3397]. > > A bare name (a name without any dots) MUST be first treated as a pre- > DNS hostname, after which resolution of the name SHALL be attempted > with DNS, and as a last resort the name SHALL be appended with > domain information. DNS server selection logic SHALL be > utilized for both of the latter two DNS using methods. > > Resolution for the name containing any dots SHOULD first be attempted > with DNS servers of all interfaces. Only if the resolution fails the > node SHOULD append the name with search list domain(s) and then again > utilize improved DNS server selection algorithm to decide which DNS > server(s) to contact. > -- > > Best regards, > > Teemu > > > > ------------------------------------------------------------------------ > > _______________________________________________ > mif mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/mif _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
