FIRST: this will be my last response to you and if it's only to prevent
using words leading to moderation
Am 19.06.21 um 15:46 schrieb alcol alcol:
Ohuuuuuuuuuu I haven't written slave but was not your email
if you want to say something don't quote others taht say right things
please understand that this is my decision
if I don't use words as you could use or like is not your matter
sorry for correcting wrong technical terms and understanding, either
learn to deal with it or don't ask on places where professionals are present
>>> 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.
this is nosense
a) IANA don't download anything from nowhere
b) zone transfers are not downloads
c) worldwide dns don't work that way
RECURSION:
* the resolver asks the root which
nameserver is responsible for the TLD
* the tld registry tell him the
nameserver for the zone
* finally it asks that nameservers
how they got their zone-data is irrelevant, the autoritative nameservers
just respond to specific queries
you initally asked "find who is hosting this reverse lookup?" and the
answer is simply: look the SOA of the reverse-name
[harry@srv-rhsoft:/downloads]$ dig SOA 6.73.118.91.in-addr.arpa. @8.8.8.8
; <<>> DiG 9.11.32-RedHat-9.11.32-1.fc33 <<>> SOA
6.73.118.91.in-addr.arpa. @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39068
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;6.73.118.91.in-addr.arpa. IN SOA
;; AUTHORITY SECTION:
73.118.91.in-addr.arpa. 1799 IN SOA ns2.thelounge.net.
hostmaster.thelounge.net. 2021050714 3600 1800 1814400 3600
as last part of your reply, please think to yourself as you started to
quote me with no meaning saying same things as me
Why do you look at the speck that is in your brother's eye and don't
notice the beam that is in your eye?
------------------------------------------------------------------------
*From:* bind-users <bind-users-boun...@lists.isc.org> on behalf of
Reindl Harald <h.rei...@thelounge.net>
*Sent:* Saturday, June 19, 2021 2:23 PM
*To:* bind-users@lists.isc.org <bind-users@lists.isc.org>
*Subject:* Re: Origin of reverse lookup
Am 19.06.21 um 13:24 schrieb alcol alcol:
I see you have time to waste saying strange things
seriously?
dns zones even forard or reverse are downloaded as configured from
masters to slaves or where are needed
may you show me word "slave" in any line below?
all other remarks are confirmations of what said
that must be why you started with:
>> Any thoughts on how I might resolve this
>> or find who is hosting this reverse lookup?
I see u have time to waste ................ is clear 🤔😄
don't get me wrong but when you know that little about DNS that you
expect a service on the internet cares about what you configured at your
local box you shouldn't be that arrogant!
>> 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.
------------------------------------------------------------------------
*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/> <https://intodns.com/
<https://intodns.com/>> <https://intodns.com/
<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?
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