I see you have time to waste saying strange things dns zones even forard or reverse are downloaded as configured from masters to slaves or where are needed
all other remarks are confirmations of what said I see u have time to waste ................ is clear 🤔😄 thanks to have said same things as mine ________________________________ From: bind-users <bind-users-boun...@lists.isc.org> on behalf of Reindl Harald <h.rei...@thelounge.net> Sent: Saturday, June 19, 2021 12:36 PM To: bind-users@lists.isc.org <bind-users@lists.isc.org> Subject: Re: Origin of reverse lookup Am 19.06.21 um 12:10 schrieb alcol alcol: > ISP Have is a normale DNS zone as forward ones > > they does not offer remote mainteining as you should own all subnet > class and are directly downloaded from iana if I remember well. ptr zones are the same way delegated as any other zones > if something go wrong with the zone ISP will have issue from tld. no > in past I had a master reverse lookup maintained from me downloaded from > isp becous iana can't go around the world to download and to avoid > issues in download. dns zones are not downloaded > as are zones with so few changes isp could allow something like a > cpannel to change some records. that don't scale given that most customers just have a single IP in case you have a /24 the ISP can delegate the whole zone to you, look at the authoritative nameservers below [harry@srv-rhsoft:/downloads]$ dig -x 91.118.73.6 ; <<>> DiG 9.11.32-RedHat-9.11.32-1.fc33 <<>> -x 91.118.73.6 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21949 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1024 ; COOKIE: 68fa6f61a7537e2c684ca5d260cdc67126f45c0615547511 (good) ;; QUESTION SECTION: ;6.73.118.91.in-addr.arpa. IN PTR ;; ANSWER SECTION: 6.73.118.91.in-addr.arpa. 7200 IN PTR arrakis.thelounge.net. ;; AUTHORITY SECTION: 73.118.91.in-addr.arpa. 7200 IN NS ns1.thelounge.net. 73.118.91.in-addr.arpa. 7200 IN NS ns2.thelounge.net. ;; ADDITIONAL SECTION: ns2.thelounge.net. 7200 IN A 91.118.73. ns1.thelounge.net. 7200 IN A 85.124.176.242 > usually reverse lookup are resolved with a standard naming with ip and > isp name for consumer ranges: yes > if you run a mail server could be usefull if you run a mailserver it is a must, at least when you care to deliver your mails, as well make sure your HELO-hostname matches too many sites add at least points to the sapm scoring for clients like that: warning: hostname szkoleniagospodarka.pl does not resolve to address 51.75.72.176: Name or service not known > if not a reverse lookup is not > so much used well, in case of servers i prefer PTR/A matching no matter if it is supposed to send mail and the same goes for internal networks i maintain > ------------------------------------------------------------------------ > *From:* bind-users <bind-users-boun...@lists.isc.org> on behalf of > techli...@phpcoderusa.com <techli...@phpcoderusa.com> > *Sent:* Saturday, June 19, 2021 1:17 AM > *To:* bind-users@lists.isc.org <bind-users@lists.isc.org> > *Subject:* Origin of reverse lookup > Hi, > > I had my ISP configure a reverse lookup years ago. They say they no > longer offer that service and there is no reverse lookup for my IP. > > I keep running into this old reverse lookup and do not know where it is > coming from. > > When I run https://intodns.com/ <https://intodns.com/> it shows this > reverse lookup and not the > one I just configured on my local box. > > Any thoughts on how I might resolve this or find who is hosting this > reverse lookup? > > Thanks!! _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
_______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
