Helpdesk : Kerberos
These are frequently asked about Kerberos, that might help you
resolve your problem. If you cannot find an answer to your question
here, or in the guided tours,
then use the
and we will try to assist you as soon as possible.
How do I get and use the kerberos travelkit?
Please use the instructions found in the
How to get the Kerberos travelkit
How to set up and use the Kerberos travelkit
sections of the
Kerberos guided tour
Since we want you to log in to us directly from the machine
your keyboard is connected to, without any hops in between
there is a kerberos travel kit ready for a number of architectures.
If your particular architecture is not present, either you can
probably build it yourself, or your sysadmin can do it - or please
let us know if we can help you out!
Error: "Time is out of bounds"
If this happens you probably have synchonization problems:
kauth: Time is out of bounds (krb_rd_req)
A common problem when using Kerberos is caused by lack of synchronization
between the systems. Kerberos demands a maximum of 5 min. difference between
the system clocks. Some help with synchronizing your system clock can be found
kauth/tcp unknown service, using default port 2120
This is not an error message and has no impact on the functionality of
the kerberos travel kit under normal circumstances. The message informs
the user that the kauth/tcp system service is not registered in the
client machine as a known service with an assigned port number. The
kauth client program therefore selects the default "standard" connection
port 2120 when talking to the PDC kerberos server. This is the wanted
On most systems the information where the service to port look up table
is located is the file
/etc/services. Note that other
kerberos client programs (kx, telnet, rsh) may produce similar
messages, but may use other port numbers than 2120 as the correct default.
Error: "Can't open libresolv.so.2"
On SUN Solaris systems you may get a message stating that the kerberos
binaries can't find libresolv.so.2. This library is part of SUN
Solve's patch update scheme and can be downloaded from SUN. Please
consult the SUN web pages for more details. E.g. for Solaris 2.5.1
the library is available as patch ID 103663.
If you couldn't find your problem listed above, check out our Login FAQ
Some common problems are described there and how to correct them. Also,
you'll find some hints on the type of information that we will need to
be able to help you in case your problem isn't described there.
To report a problem you can fill out this
problem report form
or just mail to email@example.com.
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