CNAME and MX

Bill Manning bmanning at ISI.EDU
Wed Apr 12 17:10:45 UTC 2000


% >First of all, why are you supposed to have only one A record for each IP
% >address?  Is that actually stated by the RFC?
% 
% No, but it does make it easier to do a PTR record.  There can only be 1 PTR 
% record per IP address.  Having a 1 to 1 mapping does simplified tracking a 
% bit.  
% 
% [ Rodrick Su       [                                                  ]
% [ rsu at tigana.com   [       I might be crazier than you think.         ]

	And he did err, not knowing the documentation.
	There can be multiple PTR records as well. For most,
	they are of limited usefulnes.

--bill



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