Getting Data In
Highlighted

How do you filter windows logs by level?

Explorer

Is there any way to get only critical and error logs from Windows?

I mean, Windows generates logs using different levels (Critical, Warning, Error, Information...) and I don't want the Information logs on Splunk, so I would like to configure the forwarder to not send them.

0 Karma
Highlighted

Re: How do you filter windows logs by level?

Motivator

Hello @crsupportddc,

So I assume the Windows events (which are multiline) contain this line which you want to base your filter on:

Type=Information

Check out this page on how to filter specific events: Discard specific events and keep the rest.

On your heavy forwarder/indexer (whatever system comes after the Universal Forwarder), add the following lines to props.conf:

[WinEventLog:Application]
TRANSFORMS-filter = filter_information
[WinEventLog:Security]
TRANSFORMS-filter = filter_information
[WinEventLog:System]
TRANSFORMS-filter = filter_information

WinEventLog:Application, WinEventLog:Security and WinEventLog:System refer to the sourcetypes.

And add the following lines to transforms.conf:

[filter_information]
REGEX = Type=Information
DEST_KEY = queue
FORMAT = nullQueue

Do not forget to restart Splunk after making these changes.

View solution in original post

Highlighted

Re: How do you filter windows logs by level?

Explorer

Thank you for the help.
I managed to create a blacklist and avoid some specific logs but I'll implement what you mentioned to completely ignore the Information logs.

Highlighted

Re: How do you filter windows logs by level?

Motivator

Filtering by blacklisting specific EventCodes works as well. Good thinking.

0 Karma
Speak Up for Splunk Careers!

We want to better understand the impact Splunk experience and expertise has has on individuals' careers, and help highlight the growing demand for Splunk skills.