Getting Data In

I can't find ubuntu sucessful authentication log

splk_user
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Hi!

i have configred ubuntu machine to send authentication log to my splunk instance using syslog.

But i found just the failed auth logs and other logs with the field " pam_unix(cron:session)".

i am looking for the successful authentication that have the field "pam_unix(login:session)" and i find just pam_unix(sudo:session)

Do i need to use add-on for unix and linux ? 

Any advice, tips, or resources you can provide will be highly appreciated

Thank you

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