On 7 Mar 2005, at 14:58, Edward Lewis wrote:
Second issue I would like to raise is the fact that PTR is not a singleton RR but what does it mean to have multiple PTR records ? (open question to wg)
As far as the protocol, it means that the address has multiple domain names corresponding to it.
As far as applications, they can't easily deal with this. E.g., traceroute will just print one of the PTRs. (There are many apps that look a PTR records, traceroute is the only one I've really taken time to think about in this context.)
Or, worse, hostname may print a new-line separated list of names.
Best regards,
Niall O'Reilly UCD Computing Services
PGP key ID: AE995ED9 (see www.pgp.net) Fingerprint: 23DC C6DE 8874 2432 2BE0 3905 7987 E48D AE99 5ED9
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