[Freeipa-users] Sudo works for full access, but not on a per command or host level.

Tue Oct 16 14:05:38 UTC 2012

When I become the user in question I see the following in the sssd log.

            [ipa_hbac_evaluate_rules] (0x0080): Access granted by HBAC rule [test]

I think this is a sudo problem before anything else.  For a user in which sudo works, host_matches = 1 always returns when debugging is on.  For a user that does not work host_matches always equals 0 (zero).

I am open to troubleshooting the ldap configuration as I am not convinced that it is referencing the host properly.  I enroll the clients using FQDN, but noticed that initially, domainname and nisdomainname qould return (none).  Fixing these to show the correct domain did not change the behavior of the nodes though.

Thanks again!

Jason

From: freeipa-users-bounces at redhat.com [mailto:freeipa-users-bounces at redhat.com] On Behalf Of Dmitri Pal
Sent: Monday, October 15, 2012 5:58 PM
To: freeipa-users at redhat.com
Subject: Re: [Freeipa-users] Sudo works for full access, but not on a per command or host level.

On 10/15/2012 04:46 PM, Dmitri Pal wrote:
On 10/15/2012 04:34 PM, Macklin, Jason wrote:
Hi,

I apologize up front if this is obvious, but I'm having issues configuring sudo privileges.

I currently have an IPA server running FreeIPA 2.2 with sudo configured for our administrators on all hosts.  This works fantastic!  As soon as I attempt to configure a more specific sudo rule it does not work.  In my troubleshooting, I have noticed that from the same host my admin level privileges work, but with another user account setup to just run one command, it fails.  I have turned on sudo debugging and the only thing I can find that looks out of sorts is the following:

sudo: host_matches=0

As soon as I move the user account that is failing into the admin group it starts to work.

I have attempted every iteration of sudo configuration on the server that I can think of.  I have setup HBAC and given that a shot as well.  At this point I'm completely stumped and would appreciate any help that I can get!

What does sudo test return?

Yes I meant HBAC. I might confused you and myself so let us start over.

First we need to make sure that the authentication happens correctly so if HBAC is set to allow you should see in the SSSD log that access is granted. That will limit the problem to just SUDO. If you have the allow_all HBAC rule and no other rules then we can probably skip this step and move on to trying to solve the actual SUDO part.

So with SUDO one of the known issues is the long vs short hostname. Do you by any chance use a short host name for that host?
If names are FQDN the next step would be to use ldapsearch from the client and see what LDAP entries the server would return.

Thank you in advance for your assistance,
Jason

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Thank you,

Dmitri Pal

Sr. Engineering Manager for IdM portfolio

Red Hat Inc.

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Thank you,

Dmitri Pal

Sr. Engineering Manager for IdM portfolio

Red Hat Inc.

-------------------------------

Looking to carve out IT costs?

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