I'm working on building a new Cassandra cluster and I'd like to create a DNS record that will hold the IP addresses of all of the nodes. I build all of my servers in the cloud and they automatically create a new A record for themselves when they come online, but I don't know how to add to an existing record without overwriting the existing info.
The DNS server is a Windows 2008 domain controller and my Cassandra nodes are Ubuntu 10.04 servers.