@cPanelLauren i am sending you an image of dns path diagram of the main primary server of the cluster and 3 secondary cpanel dnsonly servers the primary server that you will see in the image is called dns-manager.linkdatacenter.net this is a full cpanel server installed on centos 5 machine and we installed full cpanel because if for any reason we wanted to edit the zones on this server so we could use dns API of the full cpanel to edit the zones and the updated zones will be synchronized with the other 3 dns servers in the dns cluster.
so now all i want to do is to upgrade the machine of the primary server from centos 5 to centos 7 and since i can't do the upgrade on the same machine so i created a new centos 7 machine and i want to make this new machine to be the primary server of the dns cluster instead of the old centos 5 machine and i want to delete the centos 5 machine so my questions are:-
1- on the centos 7 machine since i want to use it as the primary server of the dns cluster instead of the old one centos 5 machine and i want to have the capability to edit dns zones at any time i want so do i have to install a full cpanel or is there a version of cpanel dnsonly that i can install on the new machine and it has the capability to make an edit on the dns zones through API at anytime i want
2- after i install cpanel on the new server what is the best approach i could use in order to make the new server to be the primary server of the dns cluster what is the best approach to do this so instead of using the old primary server
dns-manager.linkdatacenter.net i would use the new server which is called for example dns-manager1.linkdatacenter.net
FYI:
1-the centos 5 primary server which is named as dns-manager.linkdatacenter.net is used for dns-cluster only it doesn't have any accounts
2- the centos 7 server that will be used as the primary server of the dns cluster which for example i would call it dns-manager1.linkdatacenter.net will be used for dns-cluster only and it will not have any accounts so what is the best approach that i should take after i install cpanel on the new centos 7 machine to make the new machine the primary server of the dns cluster and delete the old centos 5 machine
3-i am uploading an image of the dns path diagram that i currently have now