Date: Mon, 25 Apr 2005 18:20:24 -0700 From: Eric Hodel <drbrain@segment7.net> To: freebsd-questions@freebsd.org Subject: Re: named/AAAA/resolver not failing correctly with CNAME Message-ID: <6c4c920593cad7dd5ebe1346ad44c9c6@segment7.net> In-Reply-To: <ddb6e5d4c93d1d8ec89c1c7c3f84d473@robotcoop.com> References: <ddb6e5d4c93d1d8ec89c1c7c3f84d473@robotcoop.com>
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On 25 Apr 2005, at 14:09, Eric Hodel wrote: > Starting last week, AAAA queries for domains are not "failing" > correctly when the domain being looked up is a CNAME for an A record. > > Instead of getting back a response indicating there is no AAAA record, > the resolver continues to look for a AAAA record until a timeout (a > minute or so), where it then switches to looking for an A record, > which is found immediately (as a CNAME). Here it is even more simply, the first query should give something like the third. $ host -t AAAA www.43things.com $ host -t AAAA www.43things.com dns.sea1.speakeasy.net Using domain server: Name: dns.sea1.speakeasy.net Address: 66.93.87.2#53 Aliases: www.43things.com is an alias for 43things.com. $ host -t A www.43things.com www.43things.com is an alias for 43things.com. 43things.com has address 65.61.137.67 $ host -t A www.43things.com dns.sea1.speakeasy.net Using domain server: Name: dns.sea1.speakeasy.net Address: 66.93.87.2#53 Aliases: www.43things.com is an alias for 43things.com. 43things.com has address 65.61.137.67 -- Eric Hodel - drbrain@segment7.net - http://segment7.net FEC2 57F1 D465 EB15 5D6E 7C11 332A 551C 796C 9F04
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