Thank you for your help. it does give insights into the problem.

if you check dnsviz history, this does not happen everytime.

the bind version is BIND 9.20.8-1+0~20250416.117+debian12~1.gbp1ea9dd-Debian

obtained from: https://www.isc.org/download/ —-> https://bind.debian.net/bind

there are no firewalls or load balancers. these are directly connected to internet. i was running BIND 9.18 official debian package and got no errors like this.


On 21/04/2025 4:46 am, Crist Clark wrote:
The version of BIND and where you got it would be a good start. Any load balancers, firewalls, etc. between the server and internet that might touch
the DNS records?

True DNSSEC gurus please check my math.

DNSvis is correct. You're not sending the proper NSEC3 records. Like the RFC says, "It takes three to tango," or NSEC3 denial of existence. You sent
two. For a name where two levels of label don't exists,

l5tz4.1i89a.akritrim.net

You should send back three NSEC3 records,

1) NSEC3 record that proves 1i89a.akritrim.net (
18QMAAOCT0HPNGCPD9MLONVAK13DS8HT) does not exist.
2) NSEC3 record for akritrim.net (N1MI0QA6QNO2L00GAT0PE6PEGGHHI48P).
3) NSEC3 record proving the wildcard, *.akritrim.net (
6L23GRBE4JIMA1A0G8DSBBUT32V6VCO1), does not exist.

But you're not, you're only sending two,

N1MI0QA6QNO2L00GAT0PE6PEGGHHI48P.akritrim.net. 600 IN NSEC3 1 0 0 -
QDO3A5R9G64L616H1K2FF3SUMFPPRV3J A NS SOA MX TXT AAAA RRSIG DNSKEY
NSEC3PARAM CDS CDNSKEY CAA

67QJN06FLKRQCT38S4FF08EP31NDRL8S.akritrim.net. 600 IN NSEC3 1 0 0 -
6LPNNJIVL1267OV5QQSBFLMFIDHMHJ8P TXT RRSIG

Those are two I'd expect to see for (2) and (3), but where is (1)?

But it's weirder. For this name,

ebzoq.ik7ub.akritrim.net

You are sending three NSEC3, but one doesn't look like the right one. You
should send,

1) NSEC3 record that proves 1i89a.akritrim.net (
S2NOKIAA732BLNNSEMCJ8KV74H6ICUEP) does not exist.
2) NSEC3 record for akritrim.net (N1MI0QA6QNO2L00GAT0PE6PEGGHHI48P).
3) NSEC3 record proving the wildcard, *.akritrim.net (
6L23GRBE4JIMA1A0G8DSBBUT32V6VCO1), does not exist.

But these get sent,

N1MI0QA6QNO2L00GAT0PE6PEGGHHI48P.akritrim.net. 600 IN NSEC3 1 0 0 -
QDO3A5R9G64L616H1K2FF3SUMFPPRV3J A NS SOA MX TXT AAAA RRSIG DNSKEY
NSEC3PARAM CDS CDNSKEY CAA

I559SEFHCJO35HED2LU4N68B44CA281V.akritrim.net. 600 IN NSEC3 1 0 0 -
KOGD0HOUD9R7BAB4LKQR2E9ALI57C7N0 A AAAA RRSIG CAA

67QJN06FLKRQCT38S4FF08EP31NDRL8S.akritrim.net. 600 IN NSEC3 1 0 0 -
6LPNNJIVL1267OV5QQSBFLMFIDHMHJ8P TXT RRSIG

The first and last are the same two we got previously and line up with (2) and (3). But we get this other one that doesn't line up with (1). But what
I /think/ that might be is the record that would prove
ebzoq.ik7ub.akritrim.net (IAT39F3MSSGS2D4O255VNHB67V2GCNVI) does not exist
in its place.

On Sun, Apr 20, 2025 at 10:29 AM akritrim® Intelligence™ via bind-users <
bind-users@lists.isc.org> wrote:

i didn't specifically ask for your help. i don't know why you replied. yes
i do need help but this doesn't mean i can read your mind.

so let me know what 'bits' of information should i share that will
meaningfully help me. ( this is equivalent to saying '
if you need anything specific let me know.')

today language models are more context aware.

and if you don't want to share what do you 'need' then leave it be, i
don't want your help.


On April 20, 2025 5:17:46 PM UTC, "Ondřej Surý" <ond...@isc.org> wrote:
>
>> On 20. 4. 2025, at 17:57, akritrim® Intelligence™ via bind-users <
bind-users@lists.isc.org> wrote:
>>
>> anyways, if you need anything specific let me know.
>
>Well, I don't really need anything, you've asked for help here, not I.
I've already told you what is needed,
>you didn't follow my advice :shrug:. The bits of information you have
provided are not sufficient to meaningfully
>help you.
>
>Ondrej
>--
>Ondřej Surý (He/Him)
>ond...@isc.org
>
>My working hours and your working hours may be different. Please do not
feel obligated to reply outside your normal working hours.
>
>

akritrim® Intelligence™
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