Could you please advise on how to troubleshoot the attempt below; am trying to bind to a ldap server, but in vain, when I do
openssl s_client -CApath /etc/pki/ca-trust/source/anchors/ -connect ...:636
It succeeds :
Verify return code: 0 (ok)
That is from system-side, but when I try to do a bind via python-ldap module :
In [1]: import ldap
In [2]: l = ldap.initialize('ldaps://...:636')
In [3]: ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT,ldap.OPT_X_TLS_ALLOW)
In [4]: l.set_option(ldap.OPT_X_TLS_CACERTFILE,"/etc/pki/ca-trust/source/anchors/cacert.pem")
In [5]: l.set_option(ldap.OPT_X_TLS_NEWCTX,0)
In [6]: l.simple_bind_s("...", "...")
---------------------------------------------------------------------------
SERVER_DOWN Traceback (most recent call last)
<ipython-input-6-a59dae8ba541> in <module>()
----> 1 l.simple_bind_s("...", "...")
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in simple_bind_s(self, who, cred, serverctrls, clientctrls)
205 simple_bind_s([who='' [,cred='']]) -> None
206 """
--> 207 msgid = self.simple_bind(who,cred,serverctrls,clientctrls)
208 resp_type, resp_data, resp_msgid, resp_ctrls = self.result3(msgid,all=1,timeout=self.timeout)
209 return resp_type, resp_data, resp_msgid, resp_ctrls
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in simple_bind(self, who, cred, serverctrls, clientctrls)
199 simple_bind([who='' [,cred='']]) -> int
200 """
--> 201 return self._ldap_call(self._l.simple_bind,who,cred,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))
202
203 def simple_bind_s(self,who='',cred='',serverctrls=None,clientctrls=None):
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in _ldap_call(self, func, *args, **kwargs)
97 try:
98 try:
---> 99 result = func(*args,**kwargs)
100 if __debug__ and self._trace_level>=2:
101 if func.__name__!="unbind_ext":
SERVER_DOWN: {'info': 'TLS error -8157:Certificate extension not found.', 'desc': "Can't contact LDAP server"}
In [1]: import ldap
In [2]: l = ldap.initialize('ldaps://...:636')
In [3]: l.set_option(ldap.OPT_X_TLS_REQUIRE_CERT,ldap.OPT_X_TLS_ALLOW)
In [4]: l.set_option(ldap.OPT_X_TLS_CACERTFILE,"/etc/pki/ca-trust/source/anchors/cacert.pem")
In [5]: l.protocol_version = ldap.VERSION3
In [6]: l.set_option(ldap.OPT_REFERRALS, 0)
In [7]: l.simple_bind_s("...", "...")
---------------------------------------------------------------------------
SERVER_DOWN Traceback (most recent call last)
<ipython-input-7-a59dae8ba541> in <module>()
----> 1 l.simple_bind_s("...", "...")
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in simple_bind_s(self, who, cred, serverctrls, clientctrls)
205 simple_bind_s([who='' [,cred='']]) -> None
206 """
--> 207 msgid = self.simple_bind(who,cred,serverctrls,clientctrls)
208 resp_type, resp_data, resp_msgid, resp_ctrls = self.result3(msgid,all=1,timeout=self.timeout)
209 return resp_type, resp_data, resp_msgid, resp_ctrls
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in simple_bind(self, who, cred, serverctrls, clientctrls)
199 simple_bind([who='' [,cred='']]) -> int
200 """
--> 201 return self._ldap_call(self._l.simple_bind,who,cred,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))
202
203 def simple_bind_s(self,who='',cred='',serverctrls=None,clientctrls=None):
/usr/lib64/python2.7/site-packages/ldap/ldapobject.pyc in _ldap_call(self, func, *args, **kwargs)
97 try:
98 try:
---> 99 result = func(*args,**kwargs)
100 if __debug__ and self._trace_level>=2:
101 if func.__name__!="unbind_ext":
SERVER_DOWN: {'info': "TLS error -8172:Peer's certificate issuer has been marked as not trusted by the user.", 'desc': "Can't contact LDAP server"}
import ldap
import os
ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, ldap.OPT_X_TLS_NEVER)
l = ldap.initialize('ldaps://x.x.x.x:636')
l.set_option(ldap.OPT_REFERRALS, 0)
l.set_option(ldap.OPT_PROTOCOL_VERSION, 3)
l.set_option(ldap.OPT_X_TLS_CACERTFILE, os.getcwd()+"/cacert.pem")
l.set_option(ldap.OPT_X_TLS,ldap.OPT_X_TLS_DEMAND)
l.set_option(ldap.OPT_X_TLS_DEMAND, True)
l.set_option(ldap.OPT_DEBUG_LEVEL, 255)
#l.start_tls_s()