Assume a company's authentication system is Kerberos. What happens if the AS (authentication server) or TGS (ticket granting server) goes down in terms of security and service availability?

Consider how to handle passwords for the system you are designing, as well as the idea of strong passwords.

In an authentication system that employs both private and public keys, who should have access to a private key?

Assume that the authentication mechanism used by an organization is Kerberos. What effect does the failure of either the AS (authentication server) or the TGS (ticket granting server) have on security and service availability?