You modify the nexpose_reports.py file and change the allSites variable from:
allSites = nexposeClient.site_id_listing()
To:
allSites = [1,17,123,99]
The IDs are those of the corresponding sites within Nexpose and can be found in the site URL e.g. https://<$NEXPOSE_CONSOLE>/site.jsp?siteid=17. You just take however many site IDs you want data to be collected on and add them to the script. The next time the application collects data it will be limited to those specific sites.
Another way of doing this is modifying the configured Nexpose user that the application uses to login to the Nexpose console and limit the user's access to only the sites you want data retrieved for. This will require no change to the Splunk application and will achieve the same goal.
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