I think you are right, thank you for reminding me. 

Sent from Workspace ONE Boxer 


On Jan 8, 2025 18:28, Masataka Ohta <mo...@necom830.hpcl.titech.ac.jp> wrote:

Paul Vixie wrote: 

> wildcarding should always have been signaled by the server and synthesized in 
> the stub. 

No. See below. 

> however, when dns was first developed, stubs were tiny and the idea of an 
> extra 500 lines 
> of C to implement wildcard synthesis would have seemed crazy. 

A lot more serious problem is that, before the synthesis, the 
stub must check non-existence of exact or more-specific-wildcard 
match, which was, w.r.t. server load, prohibitively painful when 
negative caching was not available. 

That should be why rfc1034 explicitly specify synthesis by the 
server. 

Masataka Ohta 

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