RFC 2219:Use of DNS Aliases for Network Services
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A Record


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... An alternative approach would be to create an A record for each of the IP addresses associated with ph.hivnet.fr, e.g. ...
... It isn't a simple matter of recommending CNAMEs over A records. Each site has it's own set of requirements that may make one approach ...
... locations, it may be desirable to list the IP addresses of the mirror servers as A records of the primary server. This is only likely to be appropriate if the mirror servers are exact copies of the original server. ...



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