It depends on the LIR – some let you, some don’t. And no, you don’t own the IPs – the LIR does
-- Mr Michele Neylon Blacknight Solutions Hosting, Colocation & Domains https://www.blacknight.com/ https://blacknight.blog/ Intl. +353 (0) 59 9183072 Direct Dial: +353 (0)59 9183090 Personal blog: https://michele.blog/ Some thoughts: https://ceo.hosting/ ------------------------------- Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty Road,Graiguecullen,Carlow,R93 X265,Ireland Company No.: 370845 I have sent this email at a time that is convenient for me. I do not expect you to respond to it outside of your usual working hours. From: Alessandro Vesely <ves...@tana.it> Date: Friday, 5 April 2024 at 16:24 To: Michele Neylon - Blacknight <mich...@blacknight.com>, anti-abuse-wg <anti-abuse-wg@ripe.net> Subject: Re: [anti-abuse-wg] Reverse DNS delegations [EXTERNAL EMAIL] Please use caution when opening attachments from unrecognised sources. On Fri 05/Apr/2024 14:41:01 +0200 Michele Neylon - Blacknight via anti-abuse-wg wrote: > Have you asked them to setup PTR records? I did so for IPv4. They're unable to delegate but can set PTRs. For IPv6, they don't have delegation for their own range, so cannot possibly resolve mine. > We usually do it for our clients, so I’ve no idea how others handle it Why can't users of a given range set up their own delegation? I know it should be hierarchical, but in case RIPE did not delegate anything (found SOA 0.a.2.ip6.arpa. dns.ripe.net) couldn't they delegate directly after proof of "ownership"? Best Ale > -- > Mr Michele Neylon > Blacknight Solutions > Hosting, Colocation & Domains > https://www.blacknight.com/ > https://blacknight.blog/ > Intl. +353 (0) 59 9183072 > Direct Dial: +353 (0)59 9183090 > Personal blog: https://michele.blog/ > Some thoughts: https://ceo.hosting/ > ------------------------------- > Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty > Road,Graiguecullen,Carlow,R93 X265,Ireland Company No.: 370845 > > I have sent this email at a time that is convenient for me. I do not expect > you to respond to it outside of your usual working hours. > > > From: anti-abuse-wg <anti-abuse-wg-boun...@ripe.net> on behalf of Alessandro > Vesely <ves...@tana.it> > Date: Friday, 5 April 2024 at 13:01 > To: anti-abuse-wg <anti-abuse-wg@ripe.net> > Subject: [anti-abuse-wg] Reverse DNS delegations > [EXTERNAL EMAIL] Please use caution when opening attachments from > unrecognised sources. > > Hi all, > > what's the policy for reverse delegation? My provider assigned me a > 2a02:29e1:500:6c00::/56. Great. However they didn't delegate reverse DNS. > Indeed, their own 2a02:29e1::/32 has no delegations: > > ; <<>> DiG 9.18.24-1-Debian <<>> 1.e.9.2.2.0.a.2.ip6.arpa ns > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19800 > ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 1232 > ; COOKIE: cad8ae482b0e559c01000000660fe49763aa815e05fda159 (good) > ;; QUESTION SECTION: > ;1.e.9.2.2.0.a.2.ip6.arpa. IN NS > > ;; AUTHORITY SECTION: > 0.a.2.ip6.arpa. 3600 IN SOA pri.authdns.ripe.net. > dns.ripe.net. 1712314758 3600 600 864000 3600 > > > Now there are mail servers which reject mail if they don't find a matching > PTR: > > <<< 554 resimta-c2p-559421.sys.comcast.net > resimta-c2p-559421.sys.comcast.net 2a02:29e1:500:6c00::4 Comcast requires > that all mail servers must have a PTR record with a valid Reverse DNS entry. > Currently your mail server does not fill that requirement. For more > information, refer to: https://postmaster.comcast.net/smtp-error-codes.php#554 > > > Why isn't it possible to gain a delegation by proving number assignment? > > > Best > Ale > -- > > > > > > > > > -- > > To unsubscribe from this mailing list, get a password reminder, or change > your subscription options, please visit: > https://lists.ripe.net/mailman/listinfo/anti-abuse-wg > >
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