Download Splunk Add-on for Tenable https://splunkbase.splunk.com/app/1710
In Splunk, Manage apps (gear)>Install app from file>browse>Splunk-add-on-for-nessus
After installing Launch app under actions column. Configure the Security Cetner Server. After the prompts adding the scanner will finalize the "input" configs.
In Splunk, navigate to Searching & Reporting> Data Summary> sources tab
Tenable Nessus allows a splunk software admin to collect tenable vuln scan data from nessus and SecurityCenter via the REST API.
For more information, depending on why type of data you are trying to forward can be found in this document. I hope this is helpful.
https://jp.tenable.com/sites/drupal.dmz.tenablesecurity.com/files/integrations/How_To_Guide_Splunk.pdf
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