topic Forward only WARN OR ERROR log lines to splunk in Security

Forward only WARN OR ERROR log lines to splunk

vivek991985 — Wed, 13 May 2020 21:12:25 GMT

Hi Team,

Need your expert advise on how can I configure my logstash.conf file to forward only the ERROR OR WARN log lines to Splunk. I have done some online research that a grok filter or wrapping the output with if condition can be used in order the acheive the required result.

I would appreciate if you could share a working example on the same. Many thanks!

Re: Forward only WARN OR ERROR log lines to splunk

to4kawa — Wed, 13 May 2020 23:52:11 GMT

https://answers.splunk.com/answers/59370/filtering-events-using-nullqueue-1.html

Can't you just delete it on the Splunk side?

Re: Forward only WARN OR ERROR log lines to splunk

vivek991985 — Thu, 14 May 2020 05:42:38 GMT

I do not want to delete it at Splunk side.

I prefer not to send the data with INFO OR DEBUG logging levels to Splunk, therefore, looking forward to getting some clean solution to implement it.

Please advise how logstash.conf should be updated to achieve the required result.

Thanks!

Re: Forward only WARN OR ERROR log lines to splunk

gcusello — Thu, 14 May 2020 06:17:21 GMT

Hi @vivek991985,
the logging level doesn't depend on Splunk, it depends on the source, so maybe you should ask to a logstash forum.

Anyway, you can filter in Splunk the not interesting logs following the steps described at https://docs.splunk.com/Documentation/Splunk/8.0.3/Forwarding/Routeandfilterdatad#Filter_event_data_and_send_to_queues .

Ciao.
Giuseppe

Re: Forward only WARN OR ERROR log lines to splunk

vivek991985 — Thu, 14 May 2020 06:20:08 GMT

Thanks very much Giuseppe for your help! Noted.