Reverse Trust Relationship on DNS Only servers

wintech2003

Well-Known Member
PartnerNOC
Sep 15, 2010
103
28
78
Greece
cPanel Access Level
DataCenter Provider
Hello,

We have several cPanel webservers, setup in Cluster DNS mode with 2 x DNS Only servers.
Until recently, my DNS Only servers would show all the cPanel servers that are "connected" with them as Standalone.
Today, I logged into both my DNS Only servers and they're saying "There are currently no servers in your DNS cluster."

Even if I go into one of my cPanel servers and re-add one of the DNS Only servers with "Setup Reverse Trust Relationship" checked, I get a message that everything went OK (see attached screenshot) but the cPanel DNS Only server still reports that there are no server in the DNS cluster.

A couple of months ago (when DNS Only was still at 11.48) I'm sure everything was OK - now my DNS Only servers are on 11.50.0 (build 30), is it possible that the update broke the DNS cluster database? A upcp --force didn't change the situation.

There doesn't seem to be any issue with our Cluster, everything is working fine and DNS records changes sync with the DNS Only servers. I just wanted to know if there's is something I can do to "fix" the "no servers in your DNS cluster" error, or if I should add the cPanel webservers to the DNS Only servers manually.

Kind regards,
George T.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,218
463
Hello :)

You can access the DNS-Only server via SSH and review the configuration files in the following directory:

Code:
/var/cpanel/cluster/root/config/
Do the files for the remote hosting servers that sync to the DNS-Only servers exist?

Thank you.
 

Clouseau

Active Member
Jan 17, 2015
35
1
58
cPanel Access Level
Root Administrator
I have the same problem. The DNSolny has the zones but there is no coniguration of MAIN server in
/var/cpanel/cluster/root/config/
I have only a file named "IP of the main server" with this inside:
root
hostname.domain.tld

The Setup Reverse Trust Relationship should create on dnsonly server entry for my MAIN server but there is no entry.
In /var/cpanel/cluster/root/config/ should also be a file named IPOFMAINSERVER-dnsrole

Any idea?
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,218
463
Hello :)

Can you reproduce the issue if you delete and add the server to the cluster again with the "Setup Reverse Trust Relation" option enabled?

Thank you.