4.5.6 Confirming the DNS Configuration for SCAN

You can use the nslookup command to confirm that the DNS is correctly associating the SCAN with the addresses.

After installation, when a client sends a request to the cluster, the Oracle Clusterware SCAN listeners redirect client requests to servers in the cluster.

• At a command prompt, use the nslookup command and specify the name of the SCAN for your cluster.
  For example:

  C:\> nslookup mycluster-scan
  Server:         dns3.example.com
  Address:        192.0.2.001
   
  Name:   mycluster-scan.example.com
  Address: 192.0.2.201
  Name:   mycluster-scan.example.com
  Address: 192.0.2.202
  Name:   mycluster-scan.example.com
  Address: 192.0.2.203