Re: Error while integrating OpenLDAP and Kerberos

Review the password stash steps used to provide the kdc/kadmin processes their password in order to bind to ldap.

Manually start the kadmind process with debugging turn on and run it in the foreground. You will likely see where things go wrong.

Passwords may not match, the password may not be in the right file, the permissions could be off... On Mar 19, 2015 1:54 AM, "Verónica Ovando" vero.ovando@gmail.com wrote:

I am trying to set up Kerberos with OpenLDAP backend. I followed this doc http://web.mit.edu/Kerberos/www/krb5-1.12/doc/admin/conf_ldap.html and this https://help.ubuntu.com/lts/serverguide/kerberos-ldap.html#kerberos-ldap-ope...

My krb5.conf file looks like this:

[libdefaults] default_realm = EXAMPLE.TEST dns_lookup_realm = false dns_lookup_kdc = false rdns = false

[kdcdefaults] restrict_anonymous_to_tgt = true

# The following krb5.conf variables are only for MIT Kerberos. krb4_config = /etc/krb.conf krb4_realms = /etc/krb.realms kdc_timesync = 1 ccache_type = 4 forwardable = true proxiable = true

# The following libdefaults parameters are only for Heimdal Kerberos. v4_instance_resolve = false v4_name_convert = { host = { rcmd = host ftp = ftp } plain = { something = something-else } } fcc-mit-ticketflags = true

[realms] #configuracion para mi reino EXAMPLE.TEST = { kdc = krb1.example.test:88 kdc = krb2.example.test:88 admin_server = krb1.example.test default_domain = example.test database_module = openldap_ldapconf }

[domain_realm] #configuracion para mi servidor .example.test = EXAMPLE.TEST EXAMPLE.test = EXAMPLE.TEST

[dbdefaults] ldap_kerberos_container_dn = cn=krbContainer,dc=example,dc=test

[dbmodules] openldap_ldapconf = { db_library = kldap ldap_kdc_dn = "cn=krbadmin,dc=example,dc=test"

            # this object needs to have read rights on
            # the realm container, principal container and realm sub-trees
    ldap_kadmind_dn = "cn=krbadmin,dc=example,dc=test"

            # this object needs to have read and write rights on
            # the realm container, principal container and realm sub-trees
            ldap_service_password_file = /etc/krb5kdc/service.keyfile
            ldap_servers = ldap://127.0.0.1
            ldap_conns_per_server = 5
    }

[login] # krb4_convert = true # krb4_get_tickets = false

[logging] kdc = FILE:/var/log/kerberos/krb5kdc.log admin_server = FILE:/var/log/kerberos/kadmin.log default = FILE:/var/log/kerberos/krb5lib.log

I added the krbPrincipalName index: dn: olcDatabase={1}hdb,cn=config add: olcDbIndex olcDbIndex: krbPrincipalName eq,pres,sub

I gave permissions to the kadmind and krb5kdc for reading a writing in the LDAP database: dn: olcDatabase={1}hdb,cn=config replace: olcAccess olcAccess: to attrs=userPassword,shadowLastChange,krbPrincipalKey by dn="cn=krbadmin,dc=example,dc=com" write by anonymous auth by self write by

• none

add: olcAccess olcAccess: to dn.base="" by * read

add: olcAccess olcAccess: to * by dn="cn=krbadmin,dc=example,dc=com" write by * read

When i try to restart the krb5-admin-server I get this error:

*[....] Restarting Kerberos administrative servers: kadmindkadmind: Invalid credentials while initializing, aborting failed!*

Any suggestion for solving this problem? I thinks there is a missing configuration on my LDAP, but I am not sure.

Thanks in advance.

-- Verónica Ovando