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Kerberos for Mac OS X

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Mac OS X comes with kerberos already installed.

There are two ways to authenticate to your DICE account using Kerberos on the Mac - using the command-line Terminal utility, or using the graphical Ticket Viewer. This document describes both.

Using Terminal

First, locate the Terminal application. This can be found in the Utilities folder:

Double-click on the Terminal application to launch it. Now type:

kinit yourusername@INF.ED.AC.UK

Enter your password when prompted:

cuyp:~ toby$ kinit toby@INF.ED.AC.UK
toby@INF.ED.AC.UK's Password: 
cuyp:~ toby$ 

The klist command can be used to check the contents of your credentials cache. The following shows a credentials cache after a successful authentication:

cuyp:~ toby$ klist
Credentials cache: API:502:10
        Principal: toby@INF.ED.AC.UK

  Issued                Expires               Principal
Feb 21 13:15:18 2013  Feb 21 23:15:11 2013  krbtgt/INF.ED.AC.UK@INF.ED.AC.UK
cuyp:~ toby$

Using Ticket Viewer

The Ticket Viewer application provides a graphical front-end for ticket acquiry. It is slightly hidden away in the Mac file system. Locate the application by opening the /System/Library/CoreServices folder:

Locate the Ticket Viewer application:

And launch the application:

Click on Add Identity and enter yourusername@INF.ED.AC.UK and your password. You can tick the box to remember your password in your keychain, but be aware of the security implications of this - that your DICE password is then only as secure as your login password. Click Continue to authenticate:

You should see indication that a ticket has been successfully acquired. Click on Set as Default here.

You may find it useful to keep the Ticket Viewer application in your dock:

What Now?

Now that you have configured Kerberos, you may want to:

Configure OpenAFS
Configure SSH (including logging in without a password)
Configure Firefox and Chrome for single-sign-on with our Cosign service

Last reviewed: 
12/04/2016

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