[Freeipa-users] HP ILO Authentication via LDAP (or even kerberos)

Wed Jan 15 04:12:48 UTC 2014

I can confirm that the password was typed in correctly. Maybe its not matching the account because it's the compat tree?

Also, each authentication tries multiple bind combinations, 3 or 4 different combinations show up in the logs for 1 authentication attempt.

>From the ILO help.."iLO attempts to contact the directory service by distinguished name, and then applies the search contexts in order until successful."

I'm beginning to think this is too hard....would hate to have to fall back to AD instead for central auth for ILO.

Regards,

Les

From: Rich Megginson [mailto:rmeggins at redhat.com]
Sent: Wednesday, 15 January 2014 2:13 PM
To: Les Stott; freeipa-users at redhat.com
Subject: Re: [Freeipa-users] HP ILO Authentication via LDAP (or even kerberos)

On 01/14/2014 07:57 PM, Les Stott wrote:
Still no joy. Although I don't profess to be a schema changing expert.

Compat plugin was already enabled. Ipa version is 3.0.0-37.el6

So I modified /etc/dirsrv/slapd-MYDOMAIN-COM/dse.ldif...

Under
dn: cn=users,cn=Schema Compatibility,cn=plugins,cn=config
I set the following...
schema-compat-entry-attribute: cn=%{cn}
schema-compat-entry-rdn: cn=%{cn}

Left the rest as default.
When I ldapsearch against the compat tree, I see it working the way I want (i.e. dn starts with cn instead of uid).
ldapsearch -x -b "cn=compat,dc=mydomain,dc=com" "cn=Les Stott"
# Les Stott, users, compat, mydomain.com
dn: cn=Les Stott,cn=users,cn=compat,dc=mydomain,dc=com

ILO Search context was set as: cn=users,cn=compat,dc=mydomain,dc=com

So it looks good, but when I test from ILO it fails still.
Try..
Les Stott
...It cant bind

[14/Jan/2014:21:52:31 -0500] conn=47 op=0 BIND dn="CN=Les Stott,cn=users,cn=compat,dc=mydomain,dc=com" method=128 version=2
[14/Jan/2014:21:52:31 -0500] conn=47 op=0 RESULT err=49 tag=97 nentries=0 etime=0
[14/Jan/2014:21:52:31 -0500] conn=47 op=1 UNBIND
[14/Jan/2014:21:52:31 -0500] conn=48 op=0 BIND dn="Les Stott" authzid="(null)", invalid bind dn
[14/Jan/2014:21:52:31 -0500] conn=48 op=0 RESULT err=34 tag=97 nentries=0 etime=0
[14/Jan/2014:21:52:31 -0500] conn=48 op=1 BIND dn="CN=Les Stott,cn=users,cn=compat,dc=mydomain,dc=com" method=128 version=2
[14/Jan/2014:21:52:31 -0500] conn=48 op=1 RESULT err=49 tag=97 nentries=0 etime=0
[14/Jan/2014:21:52:31 -0500] conn=48 op=2 UNBIND
[14/Jan/2014:21:52:31 -0500] conn=50 op=0 BIND dn="CN=Les Stott,cn=users,cn=compat,dc=mydomain,dc=com" method=128 version=2
[14/Jan/2014:21:52:31 -0500] conn=50 op=0 RESULT err=49 tag=97 nentries=0 etime=0
[14/Jan/2014:21:52:31 -0500] conn=50 op=1 UNBIND

Is it just not supporting to bind against the compat tree in 3.0.0.37? or am I doing something wrong?

Not sure, but err=49 means wrong password, and err=34 means invalid DN ("Les Stott" is not a DN).

Regards,

Les

From: Dmitri Pal [mailto:dpal at redhat.com]
Sent: Wednesday, 15 January 2014 8:36 AM
To: Les Stott
Cc: freeipa-users at redhat.com<mailto:freeipa-users at redhat.com>
Subject: Re: [Freeipa-users] HP ILO Authentication via LDAP (or even kerberos)

On 01/14/2014 04:01 PM, Les Stott wrote:
I had seen that thread... https://www.redhat.com/archives/freeipa-users/2013-November/msg00019.html

all it says is...

On 11/05/2013 02:51 PM, KodaK wrote:
If I use the whole connection string:

uid=jebalicki,cn=users,cn=accounts,dc=unix,dc=magellanhealth,dc=com

I can authenticate.
Which i can do successfully, but its not great to have to tell everyone your username for ilo is uid=blah,cn=users,cn=accounts..etc

There is also mentioned in that thread...

"The HP iLO documentation doesn't list using the uid value as a supported form of specifying the login.  You can use the CN value or the full DN.  They say that "DOMAIN\user" and "user domain" forms are also accepted, but that likely only works against Active Directory."

CN doesn't work. full DN does.

I don't see any reference to a workaround via compat plugin in that thread.

Have you got any more info on the compat workaround?

You can create a compat tree using compat plugin of IPA. It is used for NIS, support of Solaris clients and for AD trusts in latest IPA.
As a simple test you can enable the plugin:

ipa-compat-manage enable

That will expose the tree on the cn=compat hive but using 2307 schema.

You can then change the configuration of the plugin to use uid value instead of CN in this view, i.e expose CN as uid.

Then you can point your HP ILO to that tree.

AFAIU in the past it was not possible because we did not allow bind against compat tree but now we allow it so it should work with the latest IPA 3.3.x bits.

Details on how to change compat configuration can be found in the plugin configuration here:

https://git.fedorahosted.org/cgit/slapi-nis.git/tree/doc

I am not sure that would 100% work but IMO worth a shot.

Thanks,

Les
________________________________
From: freeipa-users-bounces at redhat.com<mailto:freeipa-users-bounces at redhat.com> [freeipa-users-bounces at redhat.com<mailto:freeipa-users-bounces at redhat.com>] on behalf of Dmitri Pal [dpal at redhat.com<mailto:dpal at redhat.com>]
Sent: Wednesday, January 15, 2014 3:30 AM
To: freeipa-users at redhat.com<mailto:freeipa-users at redhat.com>
Subject: Re: [Freeipa-users] HP ILO Authentication via LDAP (or even kerberos)
On 01/13/2014 10:44 PM, Les Stott wrote:
Been banging my head against the wall on this one for a few days, trying to get a workable configuration for HP ILO to authenticate via FreeIPA.

I have a standard rhel6 environment (64 bit 6.4) with freeipa server (ipa-3.0.0-37.el6).

The following works for me......

HP ILO4 Firmware 1.22
Default Directory Schema
Directory Server Address: fqdn_of_myfreeipaserver
Directory Server LDAP Port: 636
Directory User Context 1: cn=users,cn=accounts,dc=mydomain,dc=com
Directory Groups: cn=sys_admins,cn=groups,cn=accounts,dc=mydomain,dc=com

....but only if I login with my full dn....

Username: uid=less,cn=users,cn=accounts,dc=mydomain,dc=com

The test settings button in the ILO works only with the full dn.

It doesn't work if I use the uid (less), or the cn (Les Stott).

I can then login to ILO with ....
Username: uid=less,cn=users,cn=accounts,dc=mydomain,dc=com

If I try to login with the cn, Les Stott I see an error in the logs...

[13/Jan/2014:22:36:29 -0500] ipalockout_postop - [file ipa_lockout.c, line 473]: Failed to retrieve entry "CN=Les Stott,cn=users,cn=accounts,dc=mydomain,dc=com": 32

I've read a lot of things about getting this to work. Apparently there are issues with HP ILO requiring the username in cn format but its in uid format in freeipa. You should also be able to login with your cn, but that doesn't work.

I had a crack at trying Kerberos authentication as well, but it doesn't work and errors with "Additional Pre-authentication required".

Has anyone successfully been able to get HP ILO to work with FreeIPA such that you can login with just the username (i.e. "less") or the CN (i.e. "Les Stott")?

Are schema changes required?

Alternatively has anyone been able to get HP ILO to work with Kerberos auth to FreeIPA?

Any help would be greatly appreciated.

Regards,

Les

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Have you searched freeipa-users archives? The issue sounds familiar and I vaguely recalled there was a workaround.
This is the thread https://www.redhat.com/archives/freeipa-users/2013-November/msg00019.html

I think you can use compat plugin on the IPA to expose the tree in the way HP ILO expects.

--

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.

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

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