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  #1  
Old 28-05-2010
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Join Date: May 2010
Posts: 1
Windows 2008 LDAP Binds Fail between DCs

I have 2 DCs, both running windows 2008. I am logged on as the domain admin on DC1 and when I run dcdiag, it fails to bind to DC2 with error 1326.

I run ldp on DC1 and try to connect to DC2 and get the following:

=========================
0 = ldap_set_option(ld, LDAP_OPT_ENCRYPT, 1)
res = ldap_bind_s(ld, NULL, &NtAuthIdentity, NEGOTIATE (1158)); // v.3
{NtAuthIdentity: User='NULL'; Pwd=<unavailable>; domain = 'NULL'}
Error <49>: ldap_bind_s() failed: Invalid Credentials.
Server error: 8009030C: LdapErr: DSID-0C0904D1, comment: AcceptSecurityContext error, data 52e, v1772
Error 0x8009030C The logon attempt failed
=================


When I log in to DC2 and try to connect to DC1 via ldp, it works.

================
0 = ldap_set_option(ld, LDAP_OPT_ENCRYPT, 1)
res = ldap_bind_s(ld, NULL, &NtAuthIdentity, NEGOTIATE (1158)); // v.3
{NtAuthIdentity: User='NULL'; Pwd=<unavailable>; domain = 'NULL'}
Authenticated as: 'domain\admin'.
===============
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  #2  
Old 11-05-2011
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Join Date: May 2008
Posts: 177
Re: Windows 2008 LDAP Binds Fail between DCs

There are a lot of possible causes for this difficulty. Check to observe if "facilitate IEEE 802.1x authentication for this network" check box was in the adapter properties. If it is then struggle unchecking it. In addition check the port filter and make the port 389 is not blocked. Verify that the DNS zone for the domain has enabled dynamic updates. Down server says it all. Some of the processes on the server have stopped or the server is down. Restart the server or restart the service.
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