On Thu, Jul 18, 2013 at 4:29 PM, Charles Swiger <cswi...@mac.com> wrote:
> On Jul 18, 2013, at 1:18 PM, John Miller <johnm...@brandeis.edu> wrote: > > I know that for the following record in example.com's zone file: > > > > host.example.com. IN CNAME otherhost > > > > BIND will return: > > > > host.example.com. <TTL> IN CNAME otherhost.example.com. > > Assuming $ORIGIN is set to example.com, but yes. > > > Is this behavior required anywhere in the RFCs, or would > > > > host.example.com. <TTL> IN CNAME otherhost. > > > > be equally valid from an RFC perspective? Obviously this would also > pertain to NS, MX, SRV, PTR, etc. records. > > "otherhost." is equally valid from an RFC perspective, or > "otherhost.other.domain." If there is a trailing dot, the CNAME target is > assumed to be fully qualified, otherwise $ORIGIN is appended just as it > would be for any other record using an unqualified name. > > Regards, > -- > -Chuck > > I think what I was getting at was whether appending $ORIGIN to an unqualified target--only talking target, not label--was _required_ by the RFCs, and if so, the RFC/section. I'll read through 'em; was just hoping someone knew the answer off the top of their head. John
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