cPanel-DNSonly configuration dns

Hello, I have a cPanel version 68 installed on the server A with domain wh.*.ba with dns ns1.wh.*.ba. and ns2.wh.*.ba installed on the server B which is DNSonly. Is it ok configured dns that for external queries ns1.wh.*.ba do not respond just do answering on this queries DNSonly that is ns2.wh.*.ba? Two dns ns1.wh.*.ba and ns2.wh.*.ba knows for local domain which are hosted on cPanel. Thank you! Best regards, Elizabeta Kre"o