DNS Cluster Sync incomplete

1

I have a main server with about 200 domains, most of them imported from a previous instance. There is a slave with everything setup according to the docs (DNS clusters and DNSSEC | Hestia Control Panel), checked thrice and rebooted multiple times, but the slave only receives about 20 domains, and querying it for other domains it refuses.
Both servers have a public IPv4.

Example:

❯ drill ftt.gmbh @ns1.iridion.it
;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 23232
;; flags: qr aa rd ; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 
;; QUESTION SECTION:
;; ftt.gmbh.	IN	A

;; ANSWER SECTION:
ftt.gmbh.	300	IN	A	89.58.52.124

;; AUTHORITY SECTION:

;; ADDITIONAL SECTION:

;; Query time: 28 msec
;; SERVER: 89.58.52.124
;; WHEN: Mon Nov  6 22:59:31 2023
;; MSG SIZE  rcvd: 42

❯ drill ftt.gmbh @ns2.iridion.it
;; ->>HEADER<<- opcode: QUERY, rcode: REFUSED, id: 37833
;; flags: qr rd ; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 
;; QUESTION SECTION:
;; ftt.gmbh.	IN	A

;; ANSWER SECTION:

;; AUTHORITY SECTION:

;; ADDITIONAL SECTION:

;; Query time: 31 msec
;; SERVER: 152.89.105.120
;; WHEN: Mon Nov  6 22:59:33 2023
;; MSG SIZE  rcvd: 26
2

Found a workaround by executing v-add-remote-dns-domain for each domain of each user, but that does not feel right

3

v-sync-dns-cluster should do the trick…

But it does more or less the same …

4

no it did not, that is the odd thing, as said I executed it multiple times on the master node

5

It is designed to do that and loop trough all the domains…

And then do send the records to the new server:

6

And

Does the same …

7

This problem is unfortunately persisting.
v-sync-dns-cluster runs for a long time, but domains are missing.

If I call v-add-remote-dns-domain, I get a connection error even though the connection works just fine:

$ v-add-remote-dns-domain USER DOMAIN
Error: 152.89.105.XXX connection failed