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Friday, March 10, 2017

Resolve the SCAN Issue while Installing Oracle Real Application Clusters 11g Release 2


mv /usr/bin/nslookup /usr/bin/nslookup.original

ext, create a new shell script named /usr/bin/nslookup as shown below while
replacing with your primary DNS, rac-scan with your
SCAN host name, and with your SCAN IP address:
if [[ $HOSTNAME = "racnode-cluster-scan" ]]; then
 echo "Server:"
 echo "Address:"
 echo "Non-authoritative answer:"
 echo "Name: racn-scan"
 echo "Address: "
 /usr/bin/nslookup.original $HOSTNAME
Finally, change the new nslookup shell script to executable:
[root@rac1 ~]# chmod 755 /usr/bin/nslookup
Remember to perform these actions on both Oracle RAC nodes.
The new nslookup shell script simply echo's back your SCAN IP address
whenever the CVU calls nslookup with your SCAN host name.

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