Summary
This document will explain how to clear the DNS cache from NNMi.
Question
There are some behaviors when the configuration in the Network changed for any reason and the DNS was updated but in the NNMi application is still reporting the the "OLD DNS"" name this propably may happen if NNMi didn't refresh the cache information for the DNS.
Answer
In order to verify this you can run the following command:
Windows
Program Files (x86)\HP\HP BTO Software \support\nnmtwiddle.ovpl invoke com.hp.nms.dnsejb:mbean=DNSSupport getHostName <addr>
Unix:
/opt/OV/support/nnmtwiddle.ovpl invoke com.hp.nms.dnsejb:mbean=DNSSupport getHostName <addr>
If the output is the OLD name NNMi administrators can clear this cache with the follwing command:
Windows :
Program Files (x86)\HP\HP BTO Software \support\nnmtwiddle.ovpl invoke com.hp.nms.dnsejb:mbean=DNSSupport clearAllCaches
Unix:
/opt/OV/support/nnmtwiddle.ovpl invoke com.hp.nms.dnsejb:mbean=DNSSupport clearAllCaches