Configuring a Kerberos client on the Virtual I/O Server

Kerberos is a network authentication protocol that provides authentication for client and server applications by using a secret-key cyrptography. It negotiates authenticated, and optionally encrypted, communications between two points anywhere on the Internet. Kerberos authentication generally works as follows:

1. A Kerberos client sends a request for a ticket to the Key Distribution Center (KDC).
2. The KDC creates a ticket-granting ticket (TGT) for the client and encrypts it using the client's password as the key.
3. The KDC returns the encrypted TGT to the client.
4. The client attempts to decrypt the TGT, using its password.
5. If the client successfully decrypts the TGT (for example, if the client gives the correct password), the client keeps the decrypted TGT. The TGT indicates proof of the client's identity.