allow-update to localhost and (but not or) TSIG key

[Kevin Darcy]

Vasiliy Baranov wrote:
> Is it possible to allow zone updates only to those clients that access 
> the server over the loopback interface and supply a specific TSIG key 
> (looking for a setup similar to the default rndc configuration)? Will 
> the following do the thing?
>
>     allow-update { !{ !localhost; }; tsigkey; };
>   
Did you test it? What was the result of the test?

                                                                         
      - Kevin