Limiting DDNS Registration To Specific Network Interfaces

By LotusshaneyTech

When a server is connected to a network that implements dynamic DNS (DDNS), including Microsoft Active Directory networks, OS X Server may register each configured network interface address in DNS.

For multi-homed servers, this may cause confusion and prevent clients from connecting to the server.In OS X Server (Mountain Lion) or Lion Server, use this command to restrict DDNS registration to a single interface (en0 in this example):

dsconfigad -restrictDDNS "en0"

To Disable it completely point it to an interface that does not exist

dsconfigad -restrictDDNS "en999"