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Forum Discussion

Jon_Macy's avatar
Jon_Macy
Icon for Altostratus rankAltostratus
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
Juergen_Mang's avatar
Juergen_Mang
Icon for MVP rankMVP
Nov 20, 2023

But why [clientside {DNS::header tc}]?

How I read the documentation, this should work as you expected and already tested.

when DNS_RESPONSE {
  log local0. [DNS::header tc]
}

 If you want to log the dns natively without DNS specific iRules you can use this iRules: https://github.com/JuergenMang/f5-dns-logging