IBM SPSS Data Collection Installation Manual page 101

In the Data Collection server's host file, input the certificate server's IP address along with the
E
certificate common name (for example, 9.115.21.200 www.<servername>.com)
Note: You will need to change the
to a fully qualified domain name.
Install IBM SPSS Data Collection Server with SSL enabled.
E
Client configuration
E On each client machine that will connect to the Data Collection server, input
http://<certificateserver>/CertSrv in the Web browser and select to request a Web browser
certificate when prompted.
From the certificate server, Issue the certificate request.
E
Note: The preceding step is required because self-signed certificates are not currently supported.
In the client machine's Web browser, download the certificate and import it into Root Trust
E
and Trust Publisher.
Changing the interview engine load balancing algorithm
The interview engine load balancing algorithm tries to ensure that interviews are evenly distributed
across machines running the Interviewing Service. If you find that the default algorithm does
not suit your requirements you may change it.
Refer to "Load Balancing Interviewing Engines" in the IBM® SPSS® Data Collection Interviewer
Server section of the IBM® SPSS® Data Collection Developer Library documentation for further
information about this facility and examples of load balancing algorithms based on different
criteria.
Changing the load balancing algorithm for distributing interviews
Perform the following steps on each machine running the Interview Service.
Make a copy of the file [INSTALL_FOLDER]\IBM\SPSS\DataCollection\6\Interviewer
E
Server\Server\defaultload.mrs.
E Edit the copy of the script to implement the type of load balancing you require.
Change the registry key
E
\HKEY_LOCAL_MACHINE\Software\SPSS\mrInterview\3\LoadBalancing\LoadBalancingScript
so that it has the full path to the new script file as its value.
Stop and restart IIS. If you are running Windows 2003, you can stop and restart the Interviewer
E
Server application pool (usually SPSSmrnterviewPool) rather than restarting IIS if you prefer.
This has the advantage of not affecting any other applications that may be using IIS.
IBM SPSS Data Collection Interviewer Server installation information
value if the SSL certificate is assigned
LocalImageUrl
93