DNS, POSTFIX,RADIUS Filter for logstash on my elk stack.

What i want is to add the geoip feature to my elk stack but with dns, postix, dovecot, radius, included apart from apache and nginx Also Cisco devices as well. Hi Mitchell … i saw you add filter for apache and nginx in this link Can you do the same for DNS server.

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Sorry to see that your question hasn’t received an answer yet. Unfortunately, after this much time, it is unlikely an answer for this specific question will be provided without more information. For people still landing here via search, check out this tutorial. It’s a great introduction to writing Logstash filters utilizing Grok: