Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.user > #256348
| Path | csiph.com!1.us.feeder.erje.net!3.us.feeder.erje.net!3.eu.feeder.erje.net!feeder.erje.net!weretis.net!feeder8.news.weretis.net!newsreader4.netcologne.de!news.netcologne.de!fu-berlin.de!news.servidellagleba.it!bofh.it!news.nic.it!robomod |
|---|---|
| From | fh@dnsbed.com |
| Newsgroups | linux.debian.user |
| Subject | Re: Question for this IP's PTR |
| Date | Sat, 25 Mar 2023 02:30:01 +0100 |
| Message-ID | <Gd0Tf-eSI2-3@gated-at.bofh.it> (permalink) |
| References | <GcZXb-eSak-1@gated-at.bofh.it> <Gd06R-eSdj-3@gated-at.bofh.it> |
| X-Original-To | debian-user@lists.debian.org |
| X-Mailbox-Line | From debian-user-request@lists.debian.org Sat Mar 25 01:22:50 2023 |
| Old-Return-Path | <fh@dnsbed.com> |
| X-Amavis-Spam-Status | No, score=-5.5 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, LDO_WHITELIST=-5, PHONENUMBER=1.5] autolearn=no autolearn_force=no |
| X-Policyd-Weight | using cached result; rate:hard: -4.6 |
| MIME-Version | 1.0 |
| X-Sender | fh@dnsbed.com |
| Content-Type | text/plain; charset=US-ASCII; format=flowed |
| Content-Transfer-Encoding | 7bit |
| X-Mailing-List | <debian-user@lists.debian.org> archive/latest/797636 |
| List-ID | <debian-user.lists.debian.org> |
| List-URL | <https://lists.debian.org/debian-user/> |
| List-Archive | https://lists.debian.org/msgid-search/c5016313e5f328603ed236f7f862cb89@dnsbed.com |
| Approved | robomod@news.nic.it |
| Lines | 38 |
| Organization | linux.* mail to news gateway |
| Sender | robomod@news.nic.it |
| X-Original-Cc | debian-user@lists.debian.org |
| X-Original-Date | Sat, 25 Mar 2023 09:22:29 +0800 |
| X-Original-Message-ID | <c5016313e5f328603ed236f7f862cb89@dnsbed.com> |
| X-Original-References | <1b36638b99d47dba7cee9b07e2de1e04@dnsbed.com> <ZB5BHwcteKAbEvm6@wooledge.org> |
| Xref | csiph.com linux.debian.user:256348 |
Show key headers only | View raw
On 2023-03-25 08:32, Greg Wooledge wrote: > On Sat, Mar 25, 2023 at 08:28:03AM +0800, fh@dnsbed.com wrote: >> Greetings, >> >> as you see this PTR, >> >> $ dig -x 1.1.1.1 +short >> one.one.one.one. >> >> so 2.2.2.2 can have the PTR two.two.two.two? and 3.3.3.3 can have >> three.three.three.three? > > Any IP address can have any PTR value. You just have to petition the > owner of the IP address range to set it. > > I didn't know .one was a valid TLD. It looks like .two is not, so if > someone were to assign "two.two.two.two" as the PTR value of an IP > address, that PTR would not resolve back to any IP address. (An IP > address block owner might reject such a petition.) Thanks Greg. I also don't know .one is a valid TLD, looks surprising. But, one.one is owned by a domain registrar (one.com), while one.one.one's zone owner is cloudflare. $ dig one.one soa +short a.b-one-dns.net. hostmaster.one.com. 2013010101 1800 900 1209600 300 $ dig one.one.one soa +short fred.ns.cloudflare.com. dns.cloudflare.com. 2305085481 10000 2400 604800 3600 maybe they co-work for this domain. regards.
Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Question for this IP's PTR fh@dnsbed.com - 2023-03-25 01:30 +0100
Re: Question for this IP's PTR Greg Wooledge <greg@wooledge.org> - 2023-03-25 01:40 +0100
Re: Question for this IP's PTR fh@dnsbed.com - 2023-03-25 02:30 +0100
Re: Question for this IP's PTR Jeremy Ardley <jeremy@ardley.org> - 2023-03-25 02:30 +0100
Re: Question for this IP's PTR Joe <joe@jretrading.com> - 2023-03-25 10:30 +0100
Re: Question for this IP's PTR debian-user@howorth.org.uk - 2023-03-25 19:20 +0100
csiph-web