Re: pamkrbval: KDC policy rejects request for this entry
- From: "Douglas E. Engert" <deengert@xxxxxxx>
- Date: Wed, 27 Aug 2008 14:30:36 -0500
Markus Moeller wrote:
Can you check that AD and your HP system are time synchronised ? Can you do a kinit unix_client with the correct password ? Do you have the kvno binary on the HP platform ? If so can you do a kvno host/unix_client.domain.host.com and compare the number with the one in the keytab ?
Do you have the AS_REQ and AS_REP details (e.g. a wireshark capture) ?
This could also be something to do with the use of the 197001010000Z
in the till field if the AS_REQ This was not in RFC 1510, but is in 4120.
It looks like the HP is adding this. AD 2003 may not accept it. I don't
have any client test code to see if this is an AD problem.
Regards
Markus
<ricurtis@xxxxxxxxx> wrote in message news:fb4cbb61-7eef-419a-a7ba-61c2bb3ce668@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have tried everyones suggestions, but no joy - although I think I
can narrow down the problem somewhat...
After changing the default_t*_enctypes to be "RC4-HMAC" (and also
removing the lines altogether), I still get the same error...
In the Windows security log on the domain controller, I have a Failure
Audit with a result code from the request of 0xC which from some
searching at Microsoft suggests:
Requested start time is later than end time
or Workstation login restrictions..
entry "till: 1970-01-01 00:00:00 (UTC)"From a packet capture using Wireshark, the AS-REQ packet there is an
It looks as though the requested lifetime of the packet here is in the
past...
Any suggestions around that?
Regards
Richard
On 26 Aug, 20:32, "Richard Curtis" <ricur...@xxxxxxxxx> wrote:According to the HP release notes (I have Kerberos Client C.1.3.5.05):
The client libraries are based on MIT Kerberos V5 1.3.5 release. The
KRB5-Client libraries support DES, 3DES, RC4, and AES, as specified in
RFC 1510 of the IETF. This release of Kerberos Client is interoperable
with Microsoft Windows 2000 and 2003.
I will try tomorrow when I am back in the office by setting the
default_*_enctypes to RC4-HMAC... the strange thing is, the HP
configuration guide I am following has a sample krb5.conf and only
mentions DES...http://docs.hp.com/en/J4269-90076/index.html- there
is no mention of RC4 in the whole document.
I will try removing default_*_enctypes altogether aswell, and failing
that, will have a go with DEC encryption only..
If this turns out to be the solution, I will be over the moon... this
has been dragging on for some time :)
I will post back tomorrow with my results.. thanks for the replies so far guys.
Regards
Richard
On Tue, Aug 26, 2008 at 8:00 PM, Markus Moeller <hua...@xxxxxxxxxxxxxxxx> wrote:Two comments. Firstly use RC4 (e.g. RC4-HMAC) not DES in your configuration- Show quoted text -
assuming you have a MIT Kerberos version > 1.3 (is HPUX 11i still based on
MIT 1.1.1 ?). If not you need to set the AD entry for unix_client to be DES
only. Secondly did you change the password of the unix_client user ? If not
please try to change the password once and re-extract the keytab.
Markus
"Richard Curtis" <ricur...@xxxxxxxxx> wrote in message
news:5745a7060808261135s26134f5bg495452c33920af1f@xxxxxxxxxxxxxxxxxHi,________________________________________________
I am trying to get an HPUX 11i box to authenticate against our
active directory (Windows 2003r2) domain with kerberos but I am
getting nowhere fast.
As per the docs I have, I have created a user account in active
directory, then used "ktpass -princ
host/unix_client.domain.host....@xxxxxxxxxxxxxxx -mapuser unix_lient
-pass <pass> -out c:\krb5.keytab"
The keytab looks fine when I used ktutil, but I cannot do a kinit... I
keep getting "KDC policy rejects request for this entry"
I am guessing this is more of a Windows/AD config issue, but thougt
someone here might have seen this?
cat /etc/krb5.conf
[libdefaults]
default_realm = DOMAIN.HOST.COM
default_tgs_enctypes = DES-CBC-CRC
default_tkt_enctypes = DES-CBC-CRC
ccache_type = 2
ticket_liftetime = 24000
#dns_lookup_kdc = true
[realms]
DOMAIN.HOST.COM = {
kdc = 2003_dc.domain.host.com
kpasswd_server = 2003_dc.domain.host.com:464
}
[domain_realm]
domain.host.com = DOMAIN.HOST.COM
.domain.host.com = DOMAIN.HOST.COM
[logging]
default = FILE:/var/adm/krb5lib.log
kdc = FILE:/var/adm/krb5kdc.log
admin_server = FILE:/var/adm/kKDCmind.log
[appdefaults]
pam = {
debug = false
ticket_lifetime = 36000
renew_lifetime = 36000
forwardable = true
krb4_convert = false
}
unix_client:/var/adm/syslog >pamkrbval -v
Validating the pam configuration files
---------- --- --- ------------- -----
Validating the /etc/pam.conf file
[LOG] : The /etc/pam.conf files permissions are fine
[LOG] : Opened : /etc/pam.conf
[PASS] : The validation of config file: /etc/pam.conf passed
[NOTICE] : The validation of config file: /etc/pam_user.conf is not done
as libpam_updbe library is not configured
Validating the kerberos config file
---------- --- -------- ------ -----
[PASS] : Initialization of kerberos passed
Connecting to default Realm
---------- -- ------- -----
[LOG] : The default realm is : DOMAIN.HOST.COM
[LOG] : KDC hosts for realm DOMAIN.HOST.COM :2003_dc.domain.host.com
[LOG] : Trying to contact KDC for realm DOMAIN.HOST.COM...
[LOG] : Realm DOMAIN.HOST.COM is answering ticket requests
[PASS] : Default Realm is issuing tickets
Validating the keytab entry for the host service principal
---------- --- ------ ----- --- --- ---- ------- ---------
[LOG] : Host unix_client, aka unix_client.domain.host.com.
[LOG] : The default keytab name is : /etc/krb5.keytab
[LOG] : Keytab file /etc/krb5.keytab is present
[LOG] : Permissions on /etc/krb5.keytab are correct.
Keytab entry
Principal: host
Host : unix_client.domain.host.com
Realm : DOMAIN.HOST.COM
Version : 23
[LOG] : Pinging KDC to verify whether
host/unix_client.domain.host....@xxxxxxxxxxxxxxx exists
pamkrbval: KDC policy rejects request for this entry
[WARNING] : The keytab entry for the host service principal
host/unix_client.domain.host....@xxxxxxxxxxxxxxx is invalid
[FAIL] : The keytab validation failed
Validating the rc_host file for ownership
-------- ------ ---- -------- ------ -----
[LOG] : rc_host file /usr/tmp/rc_host_0 is not present on the system
[PASS] :The Validation of rc_host file:/usr/tmp/rc_host_0 is successful
unix_client:/var/adm/syslog >ktutil -i
ktutil: rkt /etc/krb5.keytab
ktutil: list
slot KVNO Principal
---- ---- ---------------------------------------------------------------------
1 23 host/unix_client.dom...@xxxxxxxxxxxxxxx
ktutil:
ktutil: unix_client:/var/adm/syslog >
unix_client:/var/adm/syslog >kinit -kt /etc/krb5.keytab
host/unix_client.domain.host.com
kinit(v5): KDC policy rejects request while getting initial credentials
Thanks in advance for any help
Regards
Richard
________________________________________________
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https://mailman.mit.edu/mailman/listinfo/kerberos
Kerberos mailing list Kerbe...@xxxxxxx
https://mailman.mit.edu/mailman/listinfo/kerberos- Hide quoted text -
________________________________________________
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https://mailman.mit.edu/mailman/listinfo/kerberos
________________________________________________
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https://mailman.mit.edu/mailman/listinfo/kerberos
--
Douglas E. Engert <DEEngert@xxxxxxx>
Argonne National Laboratory
9700 South Cass Avenue
Argonne, Illinois 60439
(630) 252-5444
.
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