Re: [DNSOP] Mail addresses in .arpa
Tony Finch <dot@dotat.at> Mon, 09 April 2018 09:11 UTC
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From: Tony Finch <dot@dotat.at>
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Date: Mon, 09 Apr 2018 10:11:23 +0100
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To: "John R. Levine" <johnl@iecc.com>
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Subject: Re: [DNSOP] Mail addresses in .arpa
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> On 8 Apr 2018, at 19:14, John R. Levine <johnl@iecc.com> wrote: > > I know it's ugly, but is there any rule that forbids putting an MX in a reverse zone? No, though talk to Joe Abley if you want some practical interop experience :-) https://mailarchive.ietf.org/arch/msg/dnsop/Ttvz3m_x7PyS6czeT-K9VQYQeqY/?qid=bff38cd5089003ca0d849bb8f2150644 Similarly, there’s nothing stopping you from putting PTR records in the “forward” DNS - my dodgy VM provisioning scripts stuff EUI48 <-> hostname maps in the DNS (the vm’s MAC address is its most persistent externally visible identifier). 08-00-27-b6-01-b4.dev.dns.cam.ac.uk. 3 IN PTR vm0.dev.dns.cam.ac.uk. vm0.dev.dns.cam.ac.uk. 3 IN EUI48 08-00-27-b6-01-b4 Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at
- [DNSOP] Mail addresses in .arpa John R. Levine
- Re: [DNSOP] Mail addresses in .arpa Rubens Kuhl
- Re: [DNSOP] Mail addresses in .arpa Petr Špaček
- Re: [DNSOP] Mail addresses in .arpa Tony Finch