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Stephen Sprunk stephen at sprunk.org
Thu May 31 14:02:12 UTC 2007

Thus spake "Randy Bush" <randy at psg.com>
> small site.  so public servers provide multiple and diverse
> services.  if a hostname has a v6 address, then all services
> must be v6 capable because clients do not retry the A record.

This seems to argue for having "service" hostnames, which has been standard 
practice at many sites for a long, long time.  For instance, if you have a 
single box which does mail and news, and you have v6 mail but only v4 news, 
then mail.example.com should have both A and AAAA records but 
news.example.com should have A records only.

(Yes, this means you can't just CNAME the service hostname to the real 
hostname, but there are several other strategies.)


Stephen Sprunk      "Those people who think they know everything
CCIE #3723         are a great annoyance to those of us who do."
K5SSS                                             --Isaac Asimov 

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