Hello,
I have a LDAP Linux client written with OpenLDAP and i need it to be
able to authenticate a user only by username and password (no domain).
By username i mean the sAMAccountName from the LDAP record. The bind
succeeds if i use "username@domain" or if i use the userPrincipalName
(which is not equal to sAMAccountName), but i am unable to make it work
just with username. Anonymous ldap_bind followed by a ldap_search does
not work (it works if the bind is not anonymous).
I have also a windows client (not using openldap library) implemented
with DirectoryEntry from C#. The login with just the username works fine
in that implementation (connected to the same LDAP server). In the LDAP
log file on Windows i see (i put [...] to hide the server address):
<Data Name="Message">ldap_bind called for connection
0xd059b718: DN is (null). Method is 0x486. Synchronous is 0x1.
<Data Name="Message">ldapBind found server is Windows 2003 or
better AD on connection 0xd059b718
<Data Name="Message">Connection->hostname is
'[.........]'
<Data Name="Message">Connection->DnsSuppliedNAme is
'[.........]'
<Data Name="Message">Connection->DomainName is
'(null)'
<Data Name="Message">LDAP: make spn returned
'ldap/[.........]' with error 0
<Data Name="Message">ldapBind found GSSAPI auth type on
connection 0xd059b718
<Data Name="Message">ldapBind found GSS-SPNEGO auth type on
connection 0xd059b718
<Data Name="Message">ldapBind found DIGEST auth type on
connection 0xd059b718
<Data Name="Message">ldap bind: Server is v3
<Data Name="Message">ldap bind: Server supports both GSS-SPNEGO
and GSSAPI
<Data Name="Message">New servicename for bind is
'ldap/[.........]'
<Data Name="Message">wldap32:Server is capable of 'NTLM'
<Data Name="Message">ldap_bind returned 0x0 for connection
0xd059b718.
So on windows it does ldap_bind 2 times , but i think it is using a
different mechanism, probably Windows specific (i mean not ldap_search)
to retrieve the userPrincipalName associated with the sAMAccountName
from input.
I do not have an account that i can use to make the initial bind (my
client should work with several distinct servers). My question is: how
to do it on linux with OpenLDAP? Is it possible?
Thank you.
