Confirming the DNS Configuration for SCAN

4.4.6 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

Parent topic: Oracle Grid Infrastructure IP Name and Address Requirements