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DNS query question

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  DNS query question Jeff Peng <jeff@tls-mail.com> - 2024-06-12 05:00 +0200
    Re: DNS query question Marco Moock <mm@dorfdsl.de> - 2024-06-12 06:50 +0200
      Re: DNS query question Geert Stappers <stappers@stappers.nl> - 2024-06-12 07:40 +0200

#270038 — DNS query question

Hello list,

I have made a successful query in one of my VPS as the following.

~$ dig 235.84.36.104.zen.spamhaus.org

; <<>> DiG 9.16.48-Ubuntu <<>> 235.84.36.104.zen.spamhaus.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2160
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;235.84.36.104.zen.spamhaus.org.	IN	A

;; ANSWER SECTION:
235.84.36.104.zen.spamhaus.org.	852 IN	A	127.0.0.10

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Wed Jun 12 02:45:16 UTC 2024
;; MSG SIZE  rcvd: 75



But, the same query wouldn't success in another VPS as follows.

$ dig 235.84.36.104.zen.spamhaus.org

; <<>> DiG 9.16.1-Ubuntu <<>> 235.84.36.104.zen.spamhaus.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15831
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;235.84.36.104.zen.spamhaus.org.	IN	A

;; Query time: 1 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Wed Jun 12 10:45:41 HKT 2024
;; MSG SIZE  rcvd: 59


The returned result is "NXDOMAIN".

Both nodes use systemd-resolve as DNS subresolver.

Do you know what's the reason behind this?

Thanks.

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#270039

Am 12.06.2024 um 10:51:45 Uhr schrieb Jeff Peng:

> Do you know what's the reason behind this?

Spamhaus restricts queries from public resolvers.
https://www.spamhaus.org/resource-hub/email-security/if-you-query-the-legacy-dnsbls-via-digitalocean-move-to-spamhaus-technologys-free-data-query-service/#the-headlines-for-those-in-a-hurry


-- 
Gruß
Marco

Send unsolicited bulk mail to 1718182305muell@cartoonies.org

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#270040

On Wed, Jun 12, 2024 at 06:42:04AM +0200, Marco Moock wrote:
> Am 12.06.2024 um 10:51:45 Uhr schrieb Jeff Peng:
> > Hello list,
> > 
> > I have made a successful query in one of my VPS as the following.
> > 
> > ~$ dig 235.84.36.104.zen.spamhaus.org
> > ;; QUESTION SECTION:
> > ;235.84.36.104.zen.spamhaus.org.	IN	A
> > 
> > ;; ANSWER SECTION:
> > 235.84.36.104.zen.spamhaus.org.	852 IN	A	127.0.0.10
> > 
> > ;; Query time: 0 msec
> > ;; SERVER: 127.0.0.53#53(127.0.0.53)
> > 
> > 
> > But, the same query wouldn't success in another VPS as follows.
> > 
> > $ dig 235.84.36.104.zen.spamhaus.org
> > ;; QUESTION SECTION:
> > ;235.84.36.104.zen.spamhaus.org.	IN	A
> > 
> > ;; Query time: 1 msec
> > ;; SERVER: 127.0.0.53#53(127.0.0.53)
> > 
> > 
> > The returned result is "NXDOMAIN".
> > 
> > Both nodes use systemd-resolve as DNS subresolver.
> > 
> > Do you know what's the reason behind this?
> 
> Spamhaus restricts queries from public resolvers.
> https://www.spamhaus.org/resource-hub/email-security/if-you-query-the-legacy-dnsbls-via-digitalocean-move-to-spamhaus-technologys-free-data-query-service/#the-headlines-for-those-in-a-hurry
> 
> 
> > Thanks.

Thanks for keeping context
Thanks for noting that response text is below previous text. Yes, keep
the discussion order.


Regards
Geert Stappers
Aware of people in different time zones
Creating awareness for that not all messages are read
Asking for standalone messages
-- 
Silence is hard to parse

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