Kerberos and LDAP authentication

[Htet Naing Aung]

Hi,

Do I need to configure Kerberos when the LDAP backend authentication is used?

I have the following setup in Django:

AUTHENTICATION_BACKENDS = (
    'django_auth_ldap.backend.LDAPBackend',
)
AUTH_LDAP_BIND_DN = 'cn=admin,dc=example,dc=com'
AUTH_LDAP_BIND_PASSWORD = secret
AUTH_LDAP_USER_DN_TEMPLATE = 'uid=%(user)s,ou=users,dc=example,dc=com'
AUTH_USER_MODEL = 'cldap.LDAPUser'

I have the DN "uid=test123,ou=users,dc=example,dc=com".

And I get this error when I try to log in from Django admin.

59b6b1b0 >>> dnPrettyNormal: <uid=test123,ou=users,dc=example,dc=com>
59b6b1b0 <<< dnPrettyNormal: <uid=test123,ou=users,dc=example,dc=com>, <uid=test123,ou=users,dc=example,dc=com>
59b6b1b0 do_bind: version=3 dn="uid=test123,ou=users,dc=example,dc=com" method=128
59b6b1b0 bdb_dn2entry("uid=test123,ou=users,dc=example,dc=com")
59b6b1b0 => hdb_dn2id("dc=example,dc=com")
59b6b1b0 <= hdb_dn2id: got id=0x95
59b6b1b0 => hdb_dn2id("ou=users,dc=example,dc=com")
59b6b1b0 <= hdb_dn2id: got id=0x98
59b6b1b0 => hdb_dn2id("uid=test123,ou=users,dc=example,dc=com")
59b6b1b0 <= hdb_dn2id: got id=0x9f
59b6b1b0 entry_decode: ""
59b6b1b0 <= entry_decode()
59b6b1b0 => hdb_search
59b6b1b0 bdb_dn2entry("cn=kerberoskdc,cn=config,dc=example,dc=com")
59b6b1b0 => hdb_dn2id("cn=config,dc=example,dc=com")
59b6b1b0 <= hdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30988)
59b6b1b0 entry_decode: ""
59b6b1b0 <= entry_decode()
59b6b1b0 send_ldap_result: conn=-1 op=0 p=0
59b6b1b0 Entry *odusers_copy_entry(Operation *): Unable to locate cn=kerberoskdc,cn=config,dc=example,dc=com (32)
59b6b1b0 odusers_copy_krbrealm: No entry associated with KerberosKDC cn=kerberoskdc,cn=config,dc=example,dc=com
59b6b1b0 odusers_krb_auth: could not retrieve krb realm while authing test123

If I don't need to setup Kerberos, what can I do to solve this problem?

Thank you

[Peter Sagerson]

There are a number of ways that one might authenticate to an LDAP service; django-auth-ldap is designed to authenticate to backends using simple binds. I would start by opening a Python shell and attempting to bind to your server manually:

>>> import ldap

>>> conn = ldap.initialize('ldap://localhost')

>>> conn.simple_bind_s('uid=test123,ou=users,dc=example,dc=com', <password>)

If that doesn't work, then I imagine either your server isn't set up correctly or django-auth-ldap isn't what you need.

Thanks,

Peter

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[Justin]

Thank you very much, Peter. I guess there's something wrong with my LDAP configuration. 

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