The Introscope agent DNS lookup feature is related to getting host names where there are socket connections to remote, or indeed even the local system. By default, Introscope Agent has 2 DNS lookup implementations - direct and separateThread, which is specified through the introscope.agent.dns.lookup.type property in the IntroscopeAgent.profile.
In certain implementation scenarios, agent DNS Lookup is not required, hence one would like to have it disabled to avoid unnecessary overhead.
CA Application Performance Management (APM) 10.x
To disable DNS lookup, please set the value of the introscope.agent.dns.lookup.type property to disabled, in the IntroscopeAgent.profile.
You must restart the managed application before change to this property takes effect.
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