Infolab wiki|
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← Revision 19 as of 2012-10-31 22:21:43 ⇥
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| Please note that all the tools are already configured on [[Bruce]], [[Rambo]] and [[Zarya]]. |
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| * Configure Mac OS X: SshKerberosMac | |
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| You can obtain a ticket for any username if you have a password for that usename (so my username is ''js'' on the local machine I can still obtain the ticket for my johns CS account). | You can obtain a ticket for any username if you have a password for that usename (so my username is ''js'' on the local machine I can still obtain the ticket for my johns CS account). |
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SSH and Kerberos
This page describes how to tackle the issue of CS managed machines (e.g. hulk and rocky) not allowing you to login without a password via SSH.
Please note that all the tools are already configured on Bruce, Rambo and Zarya.
1. Configure your OS
Configure CentOS 6: SshKerberosCentos6
Configure CentOS 5: SshKerberosCentos5
Configure Mac OS X: SshKerberosMac
- More OSs coming soon...
2. Use the Kerberos tools
Get a ticket
Whenever you would like to log in to CS managed machines (e.g. hulk, rocky) just open a terminal and enter:
kinit your_cs_id
This command will ask you for the password of your_cs_id and obtain a Kerberos ticket for the account your_cs_id. Now you can login to the CS managed machines without using a password (provided that you are logging in as your_cs_id, of course).
If you would like to manually specify the lifetime of the Kerberos ticket, you can do it with the -l switch:
kinit -l 30d your_cs_id
The command above will issue a ticket with a lifetime of 30 days for the username johns.
You can obtain a ticket for any username if you have a password for that usename (so my username is js on the local machine I can still obtain the ticket for my johns CS account).
Listing your tickets
You can list all of the tickets that you currently posses with the klist command:
klist
Deleting tickets
There may be a case when you do not need the Kerberos ticket any more and you want to delete. No problem, you can do this:
kdestroy