The Java Generic Security Service (JGSS) uses Kerberos Version 5 protocol and requires authentication by the Kerberos Key Distribution Center (KDC) before allowing communication between peers over a secure channel.

Because the login module restricts access by JGSS test programs to the KDC, it must be configured in the JRE before you can run JGSS test programs.

If you choose "No," the JGSS tests will not be performed.