- Realm Of The Ruthless Mac Os Catalina
- Realm Of The Ruthless Mac Os 11
- Realm Of The Ruthless Mac Os X
- Realm Of The Ruthless Mac Os Download
OS: Microsoft Windows 8 (64-bit) / Mac OS X 10.13 or higher: Microsoft Windows 10 (64-bit) / Mac OS X 10.15 or higher: Processor: Intel Core i5-3330 or AMD A10 5700: Intel Core i7-9700 or AMD Ryzen 5 3600: Memory: 8GB RAM: 16GB RAM: Graphics: NVIDIA GeForce GTX 650 / AMD Radeon HD 7750 (1GB VRAM) NVIDIA GeForce GTX 1060 / AMD Radeon RX 580 (6GB. Mac OS X 10.4.11 Tiger / Mac OS X 10.5.8 Leopard / Mac OS X 10.6 Snow Leopard / Mac OS X 10.7 Lion / Mac OS X 10.8 Mountain Lion - CPU: Intel Processor only - PPC support on request only - RAM: 512 MB - Video: nVidia 8xxx Series or AMD 3xxx or 4xxx Series Video Card recommended - any should work - about 850 megs of Hard Drive Space required.
[Home] [About Us] [People] [Information Systems]
[Kerberos for Macintosh] [Applications] [Miscellaneous Documentation]
Realm Of The Ruthless Mac Os Catalina
Using the Kerberos Application on Mac OS X |
This web page has instructions for the Kerberos application for Mac OS X.
These instructions reflect the Kerberos application on Mac OS X 10.3. While the Kerberos application is similar on previous OS X releases, not all features described below may be available or located in the same place.
MIT users should consult the Kerberos for Macintosh at MITdocumentation, which reflects the currently supported version.
|
If you're not familiar with Kerberos authentication and terms such as Kerberos tickets, go to What Is Kerberos? to learn the concepts and terms. | |||||
| To open the Kerberos application: If you have installed the Mac OS X Kerberos Extras, go to the Applications folder, open the Utilities folder, and open the Kerberos icon. Otherwise, you will need to navigate to the /System/Library/CoreServices directory (use the Go To Folder... item in the Finder's Go menu), and open the Kerberos icon from there. (You may want to run the Kerberos Extras or make your own alias in a more convenient location.) Result: The Kerberos application window is displayed. | |||||
|
| |||||
| Below the Active User box and the Renew Tickets, Destroy Tickets, and Change Password buttons is the ticket list. The ticket list shows all the principals that are currently authenticated in the current Mac OS X user's session. Each principal has a set of Kerberos tickets belonging to it. When you log in with Kerberos, you get a ticket-granting ticket which then allows you to get other tickets from other applications (also called services). Then for each application you run that requires Kerberos authentication, you get a service ticket. By default, the principals and their tickets appear as a summary line in the ticket list. The summary lines are in bold text. Each summary line has three elements:
Instead of a time, you may see either 'expired' or 'not valid' in the Time Remaining column. 'Expired' means that your tickets have no time remaining and so are no longer valid; 'not valid' means they are no longer valid for some other reason, usually because your Mac's IP address has changed since you obtained the tickets. In either case, you need to renew your tickets (although Kerberos for Macintosh will also prompt you automatically to renew if you try to use a service requiring Kerberos tickets). If you want to see details of tickets associated with each principal, click on the triangle at the left of the principal's summary line. The list will expand: In the expanded list, you will see a list of the tickets (credentials) belonging to that principal. If the principal is authenticated for both versions of Kerberos, the tickets are grouped by version underneath a subheading for each version (see picture above). If you always want the ticket list to display expanded entries, you can set the 'Always expand new ticket list entries' preference. See the Changing preferences section. You can display even more detailed information about each ticket using the Ticket Info window. See the Displaying ticket information section. | |||||
| The current, active user specifies which Kerberos username will be used for authentication when you work with an application that requires Kerberos authentication. If more than one Kerberos user is logged in, you may want to change the active user before using such an application. Use one of the following techniques to change the active user:
Result: The new active user is displayed in the Active User box and also appears underlined in the ticket list. | |||||
| To destroy tickets, select the boldfaced username line in the ticket list then click on the Destroy Tickets button, or choose Destroy Tickets from the Tickets menu. Result: The ticket entry is removed from the ticket list. If other Kerberos users are logged in, their usernames remain in the ticket list and their tickets are valid for the remaining time indicated. | |||||
| If your tickets have expired, or you want to extend the lifetime of existing tickets, you may want to renew your tickets. As of Mac OS X 10.3, Kerberos for Macintosh supports the 'renewable' property for tickets. If your site allows tickets to have this property, you can renew tickets up for a set amount of time without re-entering your password, as long as your current tickets are still valid (that is, haven't expired). By default, Kerberos for Macintosh tries to get tickets with the 'renewable' property; you can change this in the Kerberos Login dialog options or in the Kerberos application preferences. In fact, by default, the Kerberos application will automatically attempt to renew your tickets if you leave it running (you can close the main window for convenience). Once half your ticket's lifetime has expired, if it has the 'renewable' property, the Kerberos application will automatically issue a renew request for it. It will keep doing this up until the renewable time limit. You can control this behavior by checking or unchecking the 'Auto-renew renewable tickets' checkbox in the Kerberos application preferences. You can see if a ticket is renewable, and for how long, by using the ticket information window. See Displaying ticket information below. If your tickets are expired, or you choose not to use the auto-renew feature and want to renew your tickets before they expire, or your tickets do not support the 'renewable' property, use the Renew Tickets command.
| |||||
| If you are interested in more information about your Kerberos tickets, the Kerberos application can display detailed information about each ticket by using the Get Ticket Info command. To display detailed ticket information:
Result: The Ticket Info window appears: At the top of the ticket info window is the principal who owns the ticket, the service that the ticket was obtained for, and the Kerberos version of the ticket. The rest of the information is divided into several panes for easier reading: You can have more than one ticket info window open at once. | |||||
| You can change your Kerberos password by using the Change Password... command. To change your password,
| |||||
| The Kerberos application's dock icon has several features to help you quickly determine the status of the active user's tickets and to manage your Kerberos tickets. Graphical ticket status & time remaining indicator
Kerberos Dock Menu
| |||||
| A default Kerberos realm is specified by the edu.mit.Kerberos configuration file (as distributed from MIT, this realm is ATHENA.MIT.EDU). When using the Kerberos application to log in, by default the Kerberos username and password entered are checked for authorization in this area of the network. You can add other realms, as described in this section, and change which one Kerberos Login uses by default. (For instructions on how to change the default realm, see Changing Preferences.) Other realms listed in the edu.mit.Kerberos configuration file can also be used for logging in, but must first be added to the list of 'favorite' realms which are displayed in the Kerberos Login dialog. You can do this one of two ways. First, you can type the realm you want directly into the Realm field/popup in the Kerberos Login dialog. This will only work if the realm is already in your Kerberos configuration file, or if your site is set up for auto/DNS resolution of Kerberos realms. If you are unsure if either of these are the case, or you try to add a realm this way and it doesn't work, consult your site administrator. Second, you can use the Edit Favorite Realms of the Kerberos application that provides the following options for making the other realms in the preferences available for use:
For information on adding new realm information to the Kerberos preferences file, see the Kerberos Preferences on Mac OS X Documentation. Kerberos for Macintosh does not provide a GUI way to add this information. Generally you should not have to do this, consult with your site administrator first! To add and remove realms,
| |||||
| You can make certain customizations to the Kerberos application by using the Preferences... command. These customizations also affect the Kerberos Login dialog anytime another application brings it up.
|
Questions or comments? Send mail to macdev@mit.edu
Last updated on $Date: 2003/12/19 20:37:25 $
Last modified by $Author: smcguire $
'What would I do? I'd shut it down and give the money back to the shareholders.'—Michael Dell speaking about Apple in 1997
Realm Of The Ruthless Mac Os 11
'We're coming after you ... you're in our sights.'—Steve Jobs speaking about Dell in 1997
One's a former hippie-turned-ruthless-businessman. One's a ruthless businessman turned... er, even more ruthless businessman. Together they fight crime sell computers. Fridays this fall on ABC!
Sound a little far-fetched? Perhaps, but that hasn't stopped perpetual rumors of a partnership between the California- and Texas-based companies. Earlier this week, Yahoo! Finance became the latest to resurrect this meme with a guest commentary based almost solely on a comment from Dell's eponymous CEO from almost two years ago: 'If Apple decides to open the Mac OS to others, we would be happy to offer it to our customers.'
In theory, it sounds like a match made in heaven. Apple's operating system and software lineup running on cheap and plentiful computers from Dell? What could go wrong?
The answer is, plenty. Apple's entire strategy for switching to Intel processors is predicated by the fact that they control 100 percent of the hardware capable of running their OS. (Yes, we all know this isn't technically true, but it is for the vast majority of customers, so bear with me.) Even a limited partnership with Dell now vastly expands the range of platforms Apple must test and support officially. This seems like a recipe for disaster, or at least lines stretching out the door at most Apple Stores. The situation is even worse for Dell; as a company famous for its low overhead and just-in-time delivery, it's hardly likely they'd want to suddenly take on an entirely different OS and its accompanying user base to support.
AdvertisementThere's also a hardware issue to consider. Browse through our own Mobile Computing Outpost forum, and you'll note that although Dell's laptops continue to be popular with corporate purchasers, they aren't exactly beloved in terms of reliability or durability. As with much of the rest of the industry, Apple's biggest mindshare these days rests in its laptop lineup, but as we've noted, the company has its own set of QA issues when it comes to their mobile lineup. Can we really expect these two companies to work together to build the perfect laptop?
Realm Of The Ruthless Mac Os X
Finally, there's the high probability that it's all smoke and mirrors anyway. Dell's CEO is notorious for similar comments designed to strike fear into the heart of its 'colleagues' in the industry; witness the endless flip-flopping on AMD processors before finally deciding to get in on the game last year. Dell understands better than most that perception is 9/10ths of the law, and would probably announce it was planning to give away Xbox 360s if it meant getting concessions on Blu-ray drives from Sony. Veiled threats to start offering Mac OS-based systems might seem like a cheesy way to get a better deal from Microsoft the next time Windows licensing terms come up, but it's hardly a new strategy for the company, and it certainly doesn't mean we should expect Dell Macs anytime soon.
Realm Of The Ruthless Mac Os Download
Now, I will grant that very few of us saw the switch to Intel processors by Apple as anything more than fantasyland what-iffing two years ago, and in today's topsy-turvy business world, hardly anything is beyond the realm of possibility. An Apple-Dell partnership comes pretty low on my list of would-bes, though, right around the open-sourcing of Exchange Server or the introduction of OS/2 Mobile Edition.