Glenn writes:
> I just wanted to know the *one* place the kernel goes to most
> efficiently to determine the Internet domain name.
The kernel has no interest in domain names.  It deals only in IP
numbers.  Dealing with DNS is the job of a resolver running in user
space.

> But if I were writing all that stuff, the host's domain name relevant
> to TCP/IP would be in one place...

A machine can be in more than one domain.
-- 
John Hasler


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