Felix,
Thanks for the example. And yes, I agree -- my setup isn't getting far enough
to attempt an authentication of an end user. I *think* I've got the keytab and
MSA aspect working. So two possibilities seem worth digging at. First, there's
likely a gap in my understanding of the
http://tomcat.apache.org/tomcat-7.0-doc/windows-auth-howto.html instructions.
I'm trying to use the most simple authentication / authorization example
available in the default Tomcat7 kit, the manager-gui <auth-constraint> /
<role-name> and an ordinary conf/tomcat-users.xml. Regarding the web.xml, the
HowTo only mentions that SPNEGO is to be used, vice BASIC. Other than swapping
the string BASIC for SPNEGO, though, I'm out of guesses on that point in the
instruction. Is there something more needed in the web.xml?
Second, I'm restricting my configuration to only AES256
(aes256-cts-hmac-sha1-96) and a keytab created only for AES256. Is the default
pre-built Tomcat7 kit known to work with that, by just adding Oracle's
jce_policy-6.zip? I'm picking at this because, where my log trace seems OK with
the AD MSA's keytab, for a user authentication it jumps straight to a logout:
Entered Krb5Context.acceptSecContext with state=STATE_NEW
[Krb5LoginModule]: Entering logout
[Krb5LoginModule]: logged out Subject
It's at this point that your trace goes on to "Using builtin default etypes for
permitted_enctypes," authenticates an end user, and seems to be waiting for
further end users. It does pick up both type 18 (AES256) and 17 (AES128), but
only reports using the AES128:
Entered Krb5Context.acceptSecContext with state=STATE_NEW
Added key: 17version: 1
Added key: 18version: 1
Added key: 3version: 1
Added key: 23version: 1
Ordering keys wrt default_tkt_enctypes list
default etypes for default_tkt_enctypes: 18 17.
>>> EType: sun.security.krb5.internal.crypto.Aes128CtsHmacSha1EType
Using builtin default etypes for permitted_enctypes
default etypes for permitted_enctypes: 18 17 16 23 1 3.
>>> EType: sun.security.krb5.internal.crypto.Aes128CtsHmacSha1EType
replay cache for [email protected] is null.
object 0: 1370027872357/357663
>>> KrbApReq: authenticate succeed.
Krb5Context setting peerSeqNumber to: 758340766
Krb5Context setting mySeqNumber to: 758340766
Edward
P.S.: The example server.xml bit from your bugzilla test kit provides for role
based authorization. If I can get my very simple example to work, I'll try to
use it. On that point, the bit:
<Realm className="org.apache.catalina.realm.JNDIRealm"
connectionURL="ldap://localhost:10389";
userBase="ou=users,ou=security,dc=example,dc=com"
userSearch="(uid={0})"
roleBase="ou=groups,dc=example,dc=com"
roleName="cn"
roleSearch="(uniqueMember={0})"
useDelegatedCredential="false"
/>
or a similar tidy might be added to the HowTo, right after:
"The SPNEGO authenticator will work with any Realm but if used with the JNDI
Realm, by default the JNDI Realm will use the user's delegated credentials to
connect to the Active Directory."
________________________________________
From: Felix Schumacher [[email protected]]
Sent: Wednesday, June 05, 2013 4:12 PM
To: [email protected]
Subject: Re: Tomcat7 and SPNEGO configuration questions
Am 03.06.2013 20:48, schrieb Edward Siewick:
> Felix & Friends,
>
> I've made a fair amount of progress, though I'm still not able to log in with
> a domain credential. The domain account ID doesn't appear in the Tomcat7
> logging at all, >though it is in tomcat-users.xml. So I might now only be
> confused as to the syntax of: server.xml for JAAS; the webapp's "realm" bits
> in web.xml for SPNEGO, or; > tomcat-users.xml. I have tried changing
> tomcat-users.xml to "OPENIDMDEV/esiewick", "COM.OPENIDMDEV/esiewick" and just
> "esiewick". And, I've adjusted the Account ID in the Windows Security prompt
> to match each of these.
If I read your logs at the end of your mail correctly, I think you
haven't gotten that far as to have authenticated an user. In my logs you
could see an user00001 being authenticated. But I can't really tell you,
why your user was not authenticated.
At https://issues.apache.org/bugzilla/show_bug.cgi?id=53480 I have
described how I setup a tomcat with apacheds as a kerberos server. You
might want to try that setup.
Regards
Felix
>
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