SunVTS has two security mechanisms that you choose to implement when you install SunVTS:
Basic Security--a local file is maintained that lists the valid users, groups, and hosts permitted to use SunVTS. This level of security does not provide secure network authentication and should not be used in an environment where network security is an issue.
SEAM Security--uses the Kerberos-based, Sun Enterprise Authentication Mechanism (SEAM) to provide secure user authentication, data integrity and privacy, for transactions over networks. To use the SunVTS Kerberos security, you must have the SEAM software installed in your networked environment.
The SunVTS installation process prompts you to specify which security mechanism you want to use. You must use one or the other, and the SEAM security implementation is the default if you press the return key through the installation questions.