[Pdns-users] Issues setting up superslave

[Alento / AS]

Hello,

I have installed PowerDNS from the Ubuntu repositories on Ubuntu 20.04 
following this guide:  
https://kifarunix.com/easily-install-and-setup-powerdns-on-ubuntu-20-04/, 
[1]

The installed version is:

# pdns_server --version Oct 11 22:53:01 PowerDNS Authoritative Server 
4.2.1 (C) 2001-2019 PowerDNS.COM BV Oct 11 22:53:01 Using 64-bits mode. 
Built using gcc 9.2.1 20200202.

I want to use this as a superslave.  For the master I am using NSD which 
is located at `box.mailinabox.info` IP 45.67.229.126 which serves two 
zones:  mailinabox.info and test102.club.

This installation is located at either/both 'pdns.mailinabox.info' and 
'ns3.box.mailinabox.info', IP 137.74.61.93.

I have set the variable superslave=yes in /etc/powerdns/pdns.conf.

I have not changed any other entries in the conf file, though when 
things did not work I experimented with adding the IP of the master in 
both allow-notify-from and allow-axfr-ips with no change in results.

I did insert to the supermasters table the following:

INSERT INTO supermasters VALUES ('45.67.229.126', 
'ns3.box.mailinabox.info', 'info');

INSERT INTO supermasters VALUES ('45.67.229.126', 
'pdns.mailinabox.info', 'info');

When I update the master, its logs show this:

[2020-10-12 01:28:33.124] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.129] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.184] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.186] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.279] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.279] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.339] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.339] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.397] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.398] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.473] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.473] nsd[10133]: error: xfrd: zone mailinabox.info: 
max notify send count reached, 137.74.61.93 unreachable
[2020-10-12 01:28:33.474] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.474] nsd[10133]: error: xfrd: zone test102.club: 
max notify send count reached, 137.74.61.93 unreachable
[2020-10-12 01:28:33.532] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.533] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.592] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.592] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.672] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.672] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.731] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.732] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.792] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.793] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.868] nsd[10133]: error: xfrd: zone test102.club: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.868] nsd[10133]: error: xfrd: zone test102.club: 
max notify send count reached, 137.74.61.93 unreachable
[2020-10-12 01:28:33.869] nsd[10133]: error: xfrd: zone mailinabox.info: 
received notify response error REFUSED from 137.74.61.93
[2020-10-12 01:28:33.869] nsd[10133]: error: xfrd: zone mailinabox.info: 
max notify send count reached, 137.74.61.93 unreachable

Any idea what I may have missed, or what potentially is going wrong?

Links:
------
[1] 
https://kifarunix.com/easily-install-and-setup-powerdns-on-ubuntu-20-04/
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