What's difference?

[Joseph S D Yao]

On Sat, Sep 23, 2000 at 12:24:35AM +0700, Patrick wrote:
> 1st sceanario
> 
> mail	IN A	202.133.122.141
> mail1	IN A	202.133.122.141
> 
> 2st sceanario
> 
> mail	IN A	202.133.122.141
> mail1	IN CNAME	mail

2d scenario advantage: single point to make any changes to the IP
address.

2d scenario disadvantage: you can no longer use "mail1" in an MX
record.  Also, two database references required to return an IP
address.  This may turn into two queries, depending on what your real
situation is.

You may want to consider why you had two different names, in the first
place.  Will one do?

-- 
Joe Yao				jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support					EMT-B
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