DNS cluster shows a strange error

[Bdzzld]

Hi,

All of a sudden - probably after the most recent upgrade to cPanel 11.25 - one of our servers can no longer connect to the DNS cluster.

WHM -> Cluster/Remote Access -> Configure Cluster shows the following on that server :

server1.xxx | xx.xx.11.73 | root | Connection Timed Out | Requires version 8.9 or later   
server1.xxx | xx.xx.11.145 | root | Connection Timed Out | Requires version 8.9 or later   
server3.xxx | xx.Xx.11.115 | root | Connection Timed Out | Requires version 8.9 or later

The only difference between these servers is that the three clustered servers have version "BIND 9.2.4" installed while the other server have "BIND 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.1" installed.

Can that be the problem?

The latter was installed by a cPanel tech a few months ago.

Please let me know.

 

[eth00]

Did you make sure the firewall is not causing any problems?

 

[Bdzzld]

Thanks for taking the time to help me out, but the problem is already solved. It appeared to be a (local) network problem. That server could not connect to the servers in the DNS cluster but had no problems accessing servers outside the network. Very strange.