How do you create an ALIAS record in the raw zone file?
Question asked by BT - August 29, 2016 at 1:06 PM
This does not seem to work.
@ ALIAS my.cloudprovider.com.
Thanks.  Brian

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JH Software Replied
September 2, 2016 at 7:37 AM
Employee Post
>> You have to specify what type of record you want to alias after the ALIAS.
>> It doesn't seem like any of the other DNS software providers do it this way.
First, there is no official standard for this type of record.
I have seen several similar implementations, but so far it seems that each provider/software vendor has its own unique implementation / definition. There really is no consensus - not for the way it is done, and not even for the record type name (some call this "ANAME" or just "CNAME flattening").
In any case, only supporting A-records for this seems very limiting...
>> Can you program it so that if the record type is omitted, it is defaulted to A
We might be able to do that.
Please let us know who "the other DNS software providers" that you are referring to are, so that we can take a closer look.
>> which 99.999999% of the time will be what people want?
That's a lot of 9's :-)
What about servers on IPv6 addresses (AAAA-records)? - same exact problem with those - and their numbers are growing now.
And really - I have already seen many cases of our ALIAS record used in the wild for other record types. Don't forget that any time you use this instead of a CNAME, you are also "flattening" the responses...
BT Replied
September 2, 2016 at 8:32 AM

DNS Simple is one.

Dyn is another.

DNSMadeEasy decided to call it an ANAME.


I am not certain how ­they differentiate between A and AAAA records because the user doesn't have to specify.


My thought is that if they don't specify the record type, default to A.




JH Software Replied
September 3, 2016 at 4:34 AM
Employee Post
After having examined this further, we decided not to update how Simple DNS Plus parses ALIAS-records from zone files at this time.
We have not found any type of consensus on a format (formal or incidental), nor any efforts to reach such a consensus.
We feel that the current format used by Simple DNS Plus best reflects how this functionality is implemented in Simple DNS Plus, and that accepting an alternate format (without the alias record-type) might lead to confusion about what the record does (only A, only AAAA, A and AAAA, or all types?).

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