On Linux and UNIX platforms, specify the host name of the proxy server whose cache is being preloaded or refreshed. On Windows platforms, specify the host name only if the proxy server being refreshed is not on the local machine (Note that refreshing a remote server's cache based on its most frequently accessed files is not possible because the local cache agent does not have access to a remote server's cache access log.)
To set the host name of the proxy server, in the Configuration and Administration forms, select Cache Configuration -> Cache Refresh: Identify cache destination server.