Expose DNS Servers via public API

[Norman Maurer]

> On 30. Mar 2017, at 16:58, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> On 30/03/2017 15:36, Norman Maurer wrote:
>> Hi there,
>> 
>> I am not sure if this is the correct list for the question but as relate to network I will just try. If its the wrong list please tell me which one would be better fitted.
>> 
>> Is there reason why not expose the DNS Servers configured on a system. These are exposed in sun.net.dns.ResolverConfiguration but not exposed in any public way. Be able to access these would help people that want to do a custom dns lookup (for example non-blocking) like what we do in netty.
>> If this is something that would be considered I can come up with a patch for it.
>> 
> One could imagine introducing an API in java.net that exposes more of the networking configuration but I think would require debate as to whether it's the right thing to do or not (esp. as the existing networking APIs are abstracted from whether resolution is done via DNS, host files, ..).
> 
> An alternative might to see if it is exposed by the JNDI-DNS provider (the primary user of ResolverConfiguration and the reason it was created). It might already be exposed in the environment.
> 
> -Alan

Thats why I tried to kick-off the topic :) Thanks for the quick reply btw…. So is this list the right place for this discussion ?

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