[Samba] samba + nslcd

[basti]

Hello,

we have a Linux machine that need the UID's / GID's from samba AD.
So we setup nslcd like https://wiki.samba.org/index.php/Nslcd

nslcd is run in debug mode and the error is as follow:

nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_initialize(ldap://dc1.samdom.example.com/)
nslcd: [8b4567] <passwd="testuser"> DEBUG: ldap_set_rebind_proc()
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_PROTOCOL_VERSION,3)
nslcd: [8b4567] <passwd="testuser"> DEBUG: ldap_set_option(LDAP_OPT_DEREF,0)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_TIMELIMIT,0)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_TIMEOUT,0)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_NETWORK_TIMEOUT,0)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_REFERRALS,LDAP_OPT_OFF)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_set_option(LDAP_OPT_RESTART,LDAP_OPT_ON)
nslcd: [8b4567] <passwd="testuser"> DEBUG: 
ldap_sasl_interactive_bind_s(NULL,"GSSAPI") 
(uri="ldap://dc1.samdom.example.com/")
nslcd: [8b4567] <passwd="testuser"> DEBUG: do_sasl_interact(): were 
asked for sasl_authzid but we don't have any
nslcd: [8b4567] <passwd="testuser"> failed to bind to LDAP server 
ldap://dc1.samdom.example.com/: Local error: SASL(-1): generic failure: 
GSSAPI Error:  Miscellaneous failure (see text) (get-principal 
lstat(/tmp/nslcd.tkt)): No such file or directory
nslcd: [8b4567] <passwd="testuser"> DEBUG: ldap_unbind()
nslcd: [8b4567] <passwd="testuser"> no available LDAP server found, 
sleeping 1 seconds

The linux machine is not a domain member and should not be one and there 
is no samba stuff installed on this machine.

Do I also need Kerberos here?
Whats missing here?