On 2015-09-03 00:33, Mark Andrews wrote:
> This UPDATE only server would take less than a day to write.
> 
>       open listening sockets
> 
>       parse message
> 
>       check for signature - return NOTIMP if not found.
> 
>       check ZONE section for sanity
> 
>       look at first name in UPDATE section to determine registrar
> 
>       forward update using a per registrar txid space for TSIG
>       so you can de-mux replies.
> 
>       forward update using same txid for SIG(0) ensuring that
>       you don't have multiple txid outstanding on the same socket
>       so you can de-mux replies.
> 
>       relay reply fixing restoring txid for TSIG.
> 
> Named does all this for UPDATE when running as a slave with
> update-forwarding enabled, with the exception of looking up the
> registrar, so this is *nothing* new.  You are looking at 16 year
> old code paths here.

Still the registrar would have to implement the translation from DNS
updates to EPP messages. I wouldn't say that this is impossible to
implement in PHP (sadly that's how most registrars work) but it's not
easy. Moreover, there has to be customer demand or another incentive for
a registrar to implement it.

- Matthias-Christian

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