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1 Introduction

What is Heimdal?

Heimdal is a free implementation of Kerberos 5. The goals are to:


Heimdal has the following features (this does not mean any of this works):

Bug reports

If you find bugs in this software, make sure it is a genuine bug and not just a part of the code that isn't implemented.

Bug reports should be sent to Please include information on what machine and operating system (including version) you are running, what you are trying to do, what happens, what you think should have happened, an example for us to repeat, the output you get when trying the example, and a patch for the problem if you have one. Please make any patches with diff -u or diff -c.

Suggestions, comments and other non bug reports are also welcome.

Mailing list

There are two mailing lists with talk about Heimdal. is a low-volume announcement list, while is for general discussion. Send a message to to subscribe.

Heimdal source code, binaries and the manual

The source code for heimdal, links to binaries and the manual (this document) can be found on our web-page at