[Pdns-users] BIND-Zonefiles: @ vs blank

[Bjoern Franke]

Hey,

> 
> I've always had the understanding that blank meant "reuse last" so by
> adding the _dmarc TXT record ahead of the blank records you
> inadvertently moved them to be _dmarc.ZONE
> 
> I could certainly be wrong because I haven't looked at the man page for
> bind zone files in the last decade.

Thanks for that hint. As stated in RFC 1035[1] "If an entry for an RR
begins with a blank, then the RR is assumed to be owned by the last
stated owner". When there are only blanks, it's somehow "substitute with
the domain name", so i "bricked" the entry with the dmarc TXT record.
Only an old documentation for Bind on IRIX[2] says "A blank or tab
character in the name field denotes the current domain."

Regards
Bjoern


[1]https://tools.ietf.org/html/rfc1035
[2]http://csweb.cs.wfu.edu/~torgerse/Kokua/SGI/007-2860-008/sgi_html/apa.html#LE86111-PARENT