Troubleshooting openSUSE client authenticating to Windows 2003 AD server w/ Kerberos
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Our sys admins created a key tab file:
C:\>ktpass -princ HTTP/poe3b.lab2k.net@lab2k.NET -mapuser poe3b -crypto DES-CBC-
MD5 -ptype KRB5_NT_PRINCIPAL -mapop set +desonly -pass * -out c:\poe3b.keytab
Targeting domain controller: LABAD2.lab2k.net
WARNING: realm "lab2k.NET" has lowercase characters in it.
We only currently support realms in UPPERCASE.
assuming you mean "LAB2K.NET"...
Successfully mapped HTTP/poe3b.lab2k.net to poe3b.
Type the password for HTTP/poe3b.lab2k.net:
Type the password again to confirm:
Output keytab to c:\poe3b.keytab:
Keytab version: 0x502
keysize 57 HTTP/poe3b.lab2k.net@LAB2K.NET ptype 1 (KRB5_NT_PRINCIPAL) vno 1 etyp
e 0x3 (DES-CBC-MD5) keylength 8 (0x0b7c7cda2679a708)
Account poe3b has been set for DES-only encryption.
It appears that the principal HTTP has been mapped to the user poe3b.
klist -k -t poe3b.keytab
Keytab name: FILE:poe3b.keytab
KVNO Timestamp Principal
---- ----------------- --------------------------------------------------------
1 12/31/69 19:00:00 HTTP/poe3b.lab2k.net@LAB2K.NET
kinit -k -t poe3b.keytab HTTP
kinit(v5): Client not found in Kerberos database while getting initial credentials
It seems that the use in the keytab file is not being recognized by AD - is this what the error messages mean? Is this an AD issue, or a linux issue?
However, if I go to a windows machine in that domain, I can find the user poe3b
What am I missing? It seems that the pieces are there. Any thoughts much appreciated.
Last edited by montyny; 05-24-2010 at 08:36 AM.
Reason: change title