In order to be able to refresh extracts of workbooks published on Tableau Server, the Cognetik Cloud Connector needs to be added to a safe list - aka whitelisted (more details about whitelisting can be found here).
Here's a step by step guide of how to whitelist the connector and refresh your data extracts on Tableau Server.
➊ Log into the server
➋ Open up the console by clicking on the Start button, then start typing `cmd`, and pick the Command Prompt application.
➌ Once the command prompt has opened, go to the folder where Tableau is installed (typically C:\Program Files\Tableau\Tableau Server\) then to the bin folder. In our case, we have version 10.2 of Tableau installed, thus the path is C:\Program Files\Tableau\Tableau Server\10.2\bin
Type cd "C:\Program Files\Tableau\Tableau Server\10.2\bin" and hit Enter
➍ Whitelist the connector
Type tabadmin whitelist_webdataconnector -a http://tableau.cognetik.com/connector.html then hit Enter
The output from the command above will be:
➎ After you have whitelisted the connector, Tableau Server needs to be restarted in order for the changes to take effect:
Type tabadmin restart and hit Enter
➏ Once this is done, you can publish workbooks and schedule extract refreshes on Tableau Server.