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Forum Discussion

Jon_Macy's avatar
Jon_Macy
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Nov 13, 2023

LTM with DNS - logging query answers DNS_RESPONSE clientside

Hi All We have our DNS services behind LTM VIPs.  We have the DNS license and are using DNS_QUERY and DNS_RESPONSE events for logging queries and answers.  We are not using Express, BIGIP Bind, nor ...
application delivery
dns
load balancing
LTM
Jon_Macy's avatar
Jon_Macy
Icon for Altostratus rankAltostratus
Nov 20, 2023

Yes the logging is on the DNS_RESPONSE.  We log both the query and the response.  In the response (UDP), we want to capture the truncate flag.  This allows us to then relate the initial UDP query to the following TCP query for the same record.  The stats and metrics would be useful to scale and optimize.