two NS servers on a single host

Wed May 13 13:51:13 UTC 2009

On Wed, May 13, 2009 at 09:02:55PM +0800,
 Tech W. <techwww at yahoo.com.cn> wrote 
 a message of 34 lines which said:

> I want to give two NS records for my domain, each NS take each of
> the IP set in the host.

Why? This would be completely useless. RFC 1034 and other documents
call for at least two name servers, for redundancy reasons. If the two
name servers are on the same host, what's the point? There would be no
gain in reliability.