Access Keys:
Skip to content (Access Key - 0)

What do "Authentic", "UNAUTHENTIC", and "FORGED" mean in Zephyr?

When you receive a Zephyr windowgram, the message is marked Authentic, UNAUTHENTIC, or FORGED. These labels indicate the result of the sender's or your own authentication.

To make a long story short, it is possible to fool your workstation and make it believe you are somebody else. For this reason Project Athena has developed a system called Kerberos. Kerberos is able to verify that you are who you say you are, and not impersonating someone else. Zephyr uses the Kerberos system to authenticate its users.

If you and the sender pass authentication, then the message is marked "Authentic." If you OR the sender fails authentication, then the message is marked "UNAUTHENTIC." This does not necessarily mean that something bad is occurring. Any user can fail authentication if he loses his 'Kerberos tickets', or if his tickets expire (which they do after 10 hours). You can gain a new set of tickets at any time by running the 'renew' program. After typing 'renew', you will be prompted to enter your password.

FORGED is a special case whereby you had valid Kerberos tickets, but the information in the tickets did not match that of the original tickets used by Zephyr. In an extreme case, it might indicate someone having tampered with the Kerberos tickets, but most commonly, it occurs when you obtain new tickets, and thus these tickets do not concur with those which Zephyr is expecting. If this is the case, it can be fixed by:

	zctl load

Zephyr will then receive the new tickets.

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

October 06, 2016

Get Help

Request help
from the Help Desk
Report a security incident
to the Security Team
zephyr zephyr Delete
kerberos kerberos Delete
tickets tickets Delete
c-kerberos c-kerberos Delete
Enter labels to add to this page:
Please wait 
Looking for a label? Just start typing.
This product/service is:
Easy to use
Difficult to use

This article is:
Adaptavist Theme Builder (4.2.3) Powered by Atlassian Confluence 3.5.13, the Enterprise Wiki