Proper CNAME interpretation

2011-09-14 Thread Ronald F. Guilmette
Last night, it appeared to me that nslookup was resolving the name graphiteops.com to IP address 72.52.4.95. Today however it is no longer doing that, reporting instead: % 127.0.0.1 Address:127.0.0.1#53 Non-authoritative answer: graphiteops.com canonical name = graphiteops.com.

Re: Proper CNAME interpretation

2011-09-14 Thread John Payne
On Sep 14, 2011, at 4:35 PM, Ronald F. Guilmette wrote: Is there a rule that says how a resolver should behave in cases where there is both an A record and also a CNAME record for the same FQDN? Which one should take precedence, the A or the CNAME? RFC 1034, Section 3.6.2: If a CNAME RR is

Re: Proper CNAME interpretation

2011-09-14 Thread Ronald F. Guilmette
In message 7d9b265c-36bf-40c1-9012-ac0a96fb8...@sackheads.org, you wrote: On Sep 14, 2011, at 4:35 PM, Ronald F. Guilmette wrote: Is there a rule that says how a resolver should behave in cases where there is both an A record and also a CNAME record for the same FQDN? Which one should take

Re: Proper CNAME interpretation

2011-09-14 Thread Chuck Swiger
On Sep 14, 2011, at 2:27 PM, Ronald F. Guilmette wrote: The second part however seems to go more to my question, which is What is the resolver supposed to do when some knucklehead breaks the rules and puts a CNAME in with some other stuff? Depends on which query one issued. The very next

blacklisting replies, was: Proper CNAME interpretation

2011-09-14 Thread Chuck Swiger
Sigh: your mail server is blacklisting email from mac.com. Begin forwarded message: From: postmas...@mac.com Date: September 14, 2011 2:53:05 PM PDT To: cswi...@mac.com Subject: Delivery Notification: Delivery has failed This report relates to a message you sent with the following header

Re: Proper CNAME interpretation

2011-09-14 Thread Kevin Darcy
On 9/14/2011 5:52 PM, Chuck Swiger wrote: On Sep 14, 2011, at 2:27 PM, Ronald F. Guilmette wrote: The second part however seems to go more to my question, which is What is the resolver supposed to do when some knucklehead breaks the rules and puts a CNAME in with some other stuff? Depends on

Re: blacklisting replies, was: Proper CNAME interpretation

2011-09-14 Thread Ronald F. Guilmette
In message cf550bd6-ba85-4cb3-8b03-e4e1b0829...@mac.com, you wrote: Sigh: your mail server is blacklisting email from mac.com. Yes. Sorry about that. Too much spam from there and no indication that anybody there gives a damn that that they gush spam. (If you find anybody who does care,