[SSSD-users] ssh (sssd) ldap authentication problem

Stephen Gallagher sgallagh at redhat.com
Wed Aug 21 17:02:51 UTC 2013


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On 08/21/2013 12:24 PM, John Uhlig wrote:
> I have been trying to resolve this problem for a couple weeks and
> tried hundreds of iterations without success. I will try to be
> brief and concise.
> 
> (1) I have a centos 6.4 openldap-2.4.35 server configured for ssh 
> authentication with a test account "localjoe".
> 
> dn:uid=localjoe,ou=internal,dc=example,dc=com objectClass:top 
> objectClass:person objectClass:organizationalPerson 
> objectClass:inetOrgPerson objectClass:posixAccount 
> cn:CN=localjoe,ou=internal,dc=example,dc=com sn:localjoe 
> userPassword:{MD5}KRVE5i0tSdtSdBLzZ6h3VnR4dk4 description:posix
> acct ou:internal uid:localjoe uidNumber:103418 gidNumber:100 
> loginShell:/bin/bash homeDirectory:/tmp
> 
> 
> (2) I have an ubuntu ldap client system (zander) and can ssh 
> localjoe at zander successfully.
> 
> (3) I have a centos 6.4 sssd ldap client system (argot) and cannot
> ssh localjoe at argot.
> 
> (4) The client (argos) /var/log/secure reports: 
> ------------------------------------------------------------ Aug 21
> 07:56:39 argot sshd[9640]: pam_succeed_if(sshd:auth): error 
> retrieving information about user localjoe Aug 21 07:56:41 argot
> sshd[9640]: Failed password for invalid user localjoe from
> XX.XX.XX.XX port 50380 ssh2 Aug 21 07:56:44 argot sshd[9641]:
> Connection closed by XX.XX.XX.XX Aug 21 07:59:47 argot sshd[9688]:
> Invalid user localjoe from XX.XX.XX.XX Aug 21 07:59:47 argot
> sshd[9689]: input_userauth_request: invalid user localjoe Aug 21
> 07:59:51 argot sshd[9688]: pam_unix(sshd:auth): check pass; user 
> unknown Aug 21 07:59:51 argot sshd[9688]: pam_unix(sshd:auth):
> authentication failure; logname= uid=0 euid=0 tty=ssh ruser=
> rhost=argot
> 
> (5)The client (argos) sssd log file reports: 
> ------------------------------------------------------- (Wed Aug 21
> 08:27:45 2013) [sssd[be[default]]] [sdap_process_result] (0x2000):
> Trace: ldap_result found nothing!
> 
> (6) "getent passwd" works with nslcd daemon running  but "getent
> --s sss passwd" does not work.
> 
> (7) ldapsearch (as per example from this mail list works ok: 
> --------------------------------------------------------------------------------
>
>  [root at argot security]# ldapsearch -x -LLL 
> '(&(uid=localjoe)(objectClass=posixAccount))' uidnumber
> homedirectory gidnumber loginshell dn:
> uid=localjoe,ou=internal,dc=example,dc=com uidNumber: 103418 
> gidNumber: 100 loginShell: /bin/bash homeDirectory: /tmp
> 
> I wonder if anyone has heard of similar problems with centos 6.4
> sssd ldap client and might have a suggestion.
> 

It would be very helpful if you could include your sssd.conf. I
strongly suspect that you have a typo in your configuration somewhere.

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