Can you copy the webui pem key from the server?
At the chef it is also a client-chef-client. Webui one is used for. Ui, to make it the rest of the calls, I believe that it is .full admin.
I would emphasize that normal behavior would be setting up the client and loading knives and would not have to impose a lot of overhead, but I think the webui key would work
A .rb knife would look like
log_level :info log_location STDOUT node_name 'chef-webui' client_key 'c:\chef\DEV\webui.pem' validation_client_name 'chef-validator' validation_key 'c:\chef\DEV\validation.pem' chef_server_url 'http://yourserverhere.com:4000' cache_type 'BasicFile' cache_options( :path => 'C:/chef/checksums' )
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