Master and Slave on one server

[Lincoln Yeoh]

On 14 Apr 2000 14:19:24 -0700, Barry Margolin <barmar at genuity.net> wrote:

>I think I can guess: InterNIC requires two servers in a registration, but
>he only has one machine.  He's using virtual addressing to pretend to be
>two machines to satisfy InterNIC.

Actually why is there such a _requirement_?

A lot of companies only have one connection to the Net. If that goes down,
is it really useful to have another DNS server elsewhere on the Net? 

I suppose the latter will cause emails to be queued up instead of bouncing
with 5XX errors, but is that all?

Cheerio,

Link.
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