On Sun, Mar 08, 2015 at 11:34:00AM -0500, Nick Williams wrote:
> The following are standardized DNS record types[1] that aren't supported by 
> PowerDNS[2]. I was hoping someone could enlighten me as to whether there are 
> specific reasons for not supporting them (as opposed to "nobody has gotten 
> around to doing the work yet," which is of course understandable) and if 
> there are any plans to begin supporting them.
> 
> These types are:
> 
> - APL: Specifies list of address ranges typically in CIDR format
> - CAA: Used for pinning a specific certificate authority for a host
> - DHCID: DHCP identifier
> - DNAME: Alias for a name and its subdomains (CNAME is just for exact name)
> - HIP: Host Identify Protocol
> - IPSECKEY: Key for IPSec protocol
> - KX: Key Exchanger Record
> 
> Thoughts?

Actually, as per version 3.0 we support KX and IPSECKEY. There are even
tests for these. Not that anyone really uses these. 

There has been some previous of discussions about DNAME. 
http://mailman.powerdns.com/pipermail/pdns-users/2011-September/008251.html
http://mailman.powerdns.com/pipermail/pdns-users/2008-August/005680.html

APL is considered experimental (could not find any RFC saying otherwise, 
there was now-expired RFC draft), so I can't see any justification for this. 

CAA is probably superceded by TLSA/DANE. Someone correct me if I'm wrong.

DHCID is not difficult to add, if needed.

HIP/HIT ditto, it looks like many of the other key storage types. 

In any case, these are added if someone provides patches, or strong need. 

Aki

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