Hi Duane-san, I'm also an Internet old timer, so I know that the root servers also served com / org / net before. But I didn't know why J-Root don't provide arpa zone. Thank you for your clarification and it is so interesting.
I tweeted the summary of your explanation in Japanese: <https://twitter.com/OrangeMorishita/status/1467525559807016960> And I heard from another person that J-Root holds the arpa zone, but not delegated. It is also interesting. -- Orange -- Yasuhiro 'Orange' Morishita <[email protected]> From: "Wessels, Duane" <[email protected]> Subject: Re: [dns-operations] What is the reason of J-Root doesn't serve the arpa zone? Date: Fri, 3 Dec 2021 23:39:48 +0000 > Thanks for the opportunity to add some clarity around J-root and > the arpa zone. Here is a brief history of events that can provide > some context: > > In the 1996 time frame there were 9 root servers: A through I. In > addition to the root zone, they also served a number of TLDs, > including com, net, org, and arpa. > > It is important to understand that when Jon Postel expanded the > root servers in 1997 to include J, K, L, and M, the new ones only > served the root and root-servers.net zones. > > In June 2000 RFC 2870 was published with section 2.5 stating: > > [root servers] also MUST NOT provide secondary service for > any zones other than the root and root-servers.net zones. > > Around this same time (+/- 1 year) the first nine root servers > stopped serving com, net, and org, but not arpa. > > In November 2002 K, L, and M were added to the NS list for arpa, > but J was not. We can't speak to decisions made by the other > operators, but Verisign chose not to put j.root-servers.net in the > NS set based on the language of RFC 2870. > > DW > > >> On Dec 2, 2021, at 10:08 PM, Yasuhiro Orange Morishita / 森下泰宏 >> <[email protected]> wrote: >> >> Caution: This email originated from outside the organization. Do not click >> links or open attachments unless you recognize the sender and know the >> content is safe. >> >> Hi, >> >> Now I'm writing an article for Japanese people that introduces the >> IETF's recent DNS-related activities, and I have a question about the >> current "arpa" zone. >> >> RFC 9120 says: >> >> Historically, the "arpa" zone has been hosted on almost all of the >> root nameservers (NSs), and [RFC3172] envisages the "arpa" domain to >> be "sufficiently critical that the operational requirements for the >> root servers apply to the operational requirements of the "arpa" >> servers". To date, this has been implemented by serving the "arpa" >> domain directly on a subset of the root server infrastructure. >> >> Yes, it is "almost all", not "all". Currently, the "arpa" zone has >> been hosted on 12 root servers, except to J-Root. >> >> Probably, this is a part of the "Historically", but I want to know why. >> >> -- Orange >> >> -- >> Yasuhiro 'Orange' Morishita <[email protected]> >> _______________________________________________ >> dns-operations mailing list >> [email protected] >> https://secure-web.cisco.com/1UPWQoE5QZLgSrY5t3Pk7jXYfTh275uVJ8x1xZqeVty8lc-Yaa_VRvU_qscPHa63slHPejQEwqAeGcHQqGLFc8cxEazngQZbzGtRJs-kpGh1Ix2ImAu6_Db9Ei0BEH7ExEYpVkdqdAdQoOhIczU-CA_RzUA5Q2ZcnDm3-NF07D4OKwhGGmE81IOScm_VxTGW5pUfkPp1xa7_aUn26-u0HJ6CCRP33Yi1TAEz0TCAxZtMHo4t0TVlG9rqLS6IBN0is8o8vD9eZMN5UAsokuWH72Q/https%3A%2F%2Flists.dns-oarc.net%2Fmailman%2Flistinfo%2Fdns-operations >> > > _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations
