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Ldap error server requires binds to turn on integrity checking

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  • 1.  Ldap error server requires binds to turn on integrity checking

    Posted Sep 04, 2013 07:59 PM

    Working thru setting clear pass up with some AP/controllers. Domain controllers are 2008 R2 with one 2003 AD DC to be upgraded. Domain is still 2003 mixed.

     

    Pointing at a DC (2K8) I get this error "Ldap error server requires binds to turn on integrity checking" but seems to work pointing at a 2003 AD DC.

     

    Under GPO / Comp Conf / Wind Settings / Security Settings / Security Options  I see the following setting:

     

    Network Security: LDAP client sigining requirements  not defined

     

    Am I going down the right track here? Thoughts?



  • 2.  RE: Ldap error server requires binds to turn on integrity checking

    EMPLOYEE
    Posted Sep 04, 2013 08:14 PM

    droidboy,

     

    We need more information.

     

    Are you doing 802.1x, or pure LDAP?  Are you doing 802.1x for authentication then LDAP for authorization?  Which screeen in ClearPass are you configuring?

     



  • 3.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 04, 2013 09:04 PM

     

     

    Clear Path Policy Manager

     

    Configuration » Authentication » Sources » Add

     

    AD over SSL Port 636

     

    Add cred/password

    Add domain

    Add base DN



  • 4.  RE: Ldap error server requires binds to turn on integrity checking

    EMPLOYEE
    Posted Sep 04, 2013 09:18 PM
    Remove the SSL requirement as well as CA checking to see if it works..


  • 5.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 04, 2013 09:32 PM

    sorry this was for 802.1x, will try the change



  • 6.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 04, 2013 09:34 PM

    Sorry you mean "Enable to verify Server Certificate for secure connection "?



  • 7.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 04, 2013 10:27 PM

    SO LDAP 389 with no cert checking still fails



  • 8.  RE: Ldap error server requires binds to turn on integrity checking

    EMPLOYEE
    Posted Sep 05, 2013 12:22 AM
    So when you are at the AD settings and you click on search base DN does it error out there or just when a user auths with .1x?

    Are you using a password with a special character?


  • 9.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 05, 2013 12:28 AM

    2013-09-05 16:13:35,201  [Th 7 Req 501 SessId R0000004d-01-522804ef] ERROR RadiusServer.Radius - rlm_ldap: user@here.local bind to 192.168.11.89:636 failed: Can't contact LDAP server
    2013-09-05 16:13:35,201  [Th 7 Req 501 SessId R0000004d-01-522804ef] ERROR RadiusServer.Radius - rlm_ldap: (re)connection attempt failed

     

    Laptop set up with 802.1x PEAP logs shows.....

     

     

    "user auths with .1x?" fails drills down ok in Active Directory



  • 10.  RE: Ldap error server requires binds to turn on integrity checking

    EMPLOYEE
    Posted Sep 05, 2013 12:33 AM
    so when you go to Configuration » Authentication » Sources and click on the Search Base Dn link what does it show?


  • 11.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 05, 2013 12:45 AM

    Allows me to drill down to base OU or further with out issue

     

    ie ou=users,ou=location,dc=domain,dc=local



  • 12.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 05, 2013 12:46 AM

    [Local User Repository] - localhost: User not found.
    domainname.local - 192.168.1.89:636: user_name@domainname.local bind failed - Can't contact LDAP server
    EAP-PEAP: fatal alert by client - unknown_ca



  • 13.  RE: Ldap error server requires binds to turn on integrity checking

    EMPLOYEE
    Posted Sep 05, 2013 01:06 AM

    @droidboy wrote:

    [Local User Repository] - localhost: User not found.
    domainname.local - 192.168.1.89:636: user_name@domainname.local bind failed - Can't contact LDAP server
    EAP-PEAP: fatal alert by client - unknown_ca


    First off did you join the domain???

     

    Administration » Server Manager » Server Configuration click on the server and then click join domain

     

    screenshot_02 Sep. 04 23.58.gif

     

     

     

    So the last section "EAP-PEAP: fatal alert by client - unknown_ca" Means the client doesnt trust the server cert. 

     

    When you log in are you using the full email address or just the username. 

     

    Try another account and see if you get the same results or try the same name you 

     

    It looks like by the error you are authenticating by the full email address. In your service go to the authentication tab and checkmark the bottom and try striping the username.

     

    screenshot_01 Sep. 04 23.55.gif



  • 14.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 05, 2013 04:51 PM

    Thanks for the assistance.

     

    Confirming it is jointo the domain

     

    Added "Enable to specify a comma-separated list of rules to strip username prefixes or suffixes " as suggested

     

    Still not working with the LDAP server 636

     

     



  • 15.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 06, 2013 02:19 PM

    To get LDAP over SSL working on port 636, make sure that the root CA and any intermediate CA certificates are in the CPPM trust list (if the LDAP server certificate was issued by a CA), or add the LDAP server certificate directly to the CPPM trust list (if it is a self-signed certificate).

     



  • 16.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 08, 2013 08:36 PM

    Right cert is installed correctly

     

    ANTNZ.local - 192.133.31.89:636: arubatest@domainame.local bind failed - Can't contact LDAP server [Local User Repository] - localhost: User not found. MSCHAP: Authentication failed EAP-MSCHAPv2: User authentication failure

     

     

    Still have bind issues.....

     

    2013-09-09 12:31:51,199 [Th 2 Req 9 SessId R00000001-01-522d16f7] INFO RadiusServer.Radius - rlm_service: Starting Service Categorization - 252:190:0024D7DD3730 2013-09-09 12:31:51,202 [RequestHandler-1-0x7f7591b15700 r=auto-4 h=79 r=R00000001-01-522d16f7] INFO Core.ServiceReqHandler - Service classification result = Name 802.1X Wireless 2013-09-09 12:31:51,203 [Th 2 Req 9 SessId R00000001-01-522d16f7] INFO RadiusServer.Radius - rlm_service: The request has been categorized into service "Name 802.1X Wireless" 2013-09-09 12:31:51,203 [Th 2 Req 9 SessId R00000001-01-522d16f7] INFO RadiusServer.Radius - rlm_ldap: searching for user Name\arubatest in AD:192.168.1.100 2013-09-09 12:31:51,206 [Th 2 Req 9 SessId R00000001-01-522d16f7] ERROR RadiusServer.Radius - rlm_ldap: arubatest@domain.local bind to 192.133.31.89:636 failed: Can't contact LDAP server 2013-09-09 12:31:51,206 [Th 2 Req 9 SessId R00000001-01-522d16f7] ERROR RadiusServer.Radius - rlm_ldap: (re)connection attempt failed



  • 17.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 09, 2013 01:19 PM

    > bind to 192.133.31.89:636 failed: Can't contact LDAP server 

     

    This is strongly suggestive of a network connectivity issue - check for firewalls that might be getting in the way?  You should also be able to verify the connectivity by using Microsoft's Event Viewer.



  • 18.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 09, 2013 06:56 PM

    Installed Softtera LDAP reader andI can confirm I can browse 389 and 636.

     

    If I set to 389 I now can auth and log a device in via wireless.

     

    I can not if 636 is used.

     

    CA Cert Root is installed correclty.

     

    Can drill down in the source DN option ok on 389 and 636 ports.



  • 19.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 09, 2013 07:47 PM

    Do you have "Enable to verify Server Certificate for secure connection" checked for that auth source? If so, does it work when it is unchecked?



  • 20.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 09, 2013 08:09 PM
      |   view attached

    See the attached file for DN drill down

     

     


    @avidal wrote:

    Do you have "Enable to verify Server Certificate for secure connection" checked for that auth source? If so, does it work when it is unchecked?


    Neither work....

     

    Confirming 389 connections allows a BYOD device to connect just fails when I try secure on 636. BYOD have the Root CA cert installed as well making not difference.

     

    External LDAP reader can on another server read the AD DC LDAP on 636 ok.



  • 21.  RE: Ldap error server requires binds to turn on integrity checking

    Posted Sep 10, 2013 12:11 PM

    If you have verified that all certificates in the chain for the certificate being presented by the domain controller are imported into the trusted certificates section within CPPM and enabled and it still does not work, I recommend opening a TAC case.