[Freeipa-users] IPA AD Sync error

Tue Sep 21 13:16:51 UTC 2010

Shan Kumaraswamy wrote:
> Hi Rich,
> While executing your command (ldapserch), I am getting the following 
> output:
>  
> _Command:_
> /usr/lib64/mozldap/ldapsearch -h fqdn.of.ad.hostname -Z -P 
> /etc/dirsrv/slapd-YOURINSTANCE/cert8.db -s base -b "" "objectclass=*"
>  
> _Output:_
> ldap_search: Can't contact LDAP server
>         SSL error -8179 (Peer's Certificate issuer is not recognized.)
> _Command:_
> LDAPTLS_CACERT=/path/to/adcacert.asc ldapsearch -d 1 -x -h 
> fqdn.of.ad.hostname -p 389 -Z -s base -b ""
>  
> _Output:_
>  
> [root at saprhds001 ~]# 
> LDAPTLS_CACERT=/etc/dirsrv/slapd-MYDOMAIN-COM/sbpaddc003.cer 
> ldapsearch -d 1 -x -h sbpaddc003.corp.mydomain.ad 
> <http://sbpaddc003.corp.mydomain.ad> -p 389 -Z -s base -b ""
> ldap_create
> ldap_url_parse_ext(ldap://sbpaddc003.corp.mydomain.ad:389 
> <ldap://sbpaddc003.corp.mydomain.ad:389/>)
> ldap_extended_operation_s
> ldap_extended_operation
> ldap_send_initial_request
> ldap_new_connection 1 1 0
> ldap_int_open_connection
> ldap_connect_to_host: TCP sbpaddc003.corp.mydomain.ad:389 
> <http://sbpaddc003.corp.mydomain.ad:389>
> ldap_new_socket: 3
> ldap_prepare_socket: 3
> ldap_connect_to_host: Trying 10.8.27.22:389 <http://10.8.27.22:389>
> ldap_connect_timeout: fd: 3 tm: -1 async: 0
> ldap_open_defconn: successful
> ldap_send_server_request
> ber_scanf fmt ({it) ber:
> ber_scanf fmt ({) ber:
> ber_flush: 31 bytes to sd 3
> ldap_result ld 0x1aa8c6f0 msgid 1
> wait4msg ld 0x1aa8c6f0 msgid 1 (infinite timeout)
> wait4msg continue ld 0x1aa8c6f0 msgid 1 all 1
> ** ld 0x1aa8c6f0 Connections:
> * host: sbpaddc003.corp.mydomain.ad 
> <http://sbpaddc003.corp.mydomain.ad>  port: 389  (default)
>   refcnt: 2  status: Connected
>   last used: Tue Sep 21 10:23:41 2010
> ** ld 0x1aa8c6f0 Outstanding Requests:
>  * msgid 1,  origid 1, status InProgress
>    outstanding referrals 0, parent count 0
> ** ld 0x1aa8c6f0 Response Queue:
>    Empty
> ldap_chkResponseList ld 0x1aa8c6f0 msgid 1 all 1
> ldap_chkResponseList returns ld 0x1aa8c6f0 NULL
> ldap_int_select
> read1msg: ld 0x1aa8c6f0 msgid 1 all 1
> ber_get_next
> ber_get_next: tag 0x30 len 40 contents:
> read1msg: ld 0x1aa8c6f0 msgid 1 message type extended-result
> ber_scanf fmt ({eaa) ber:
> read1msg: ld 0x1aa8c6f0 0 new referrals
> read1msg:  mark request completed, ld 0x1aa8c6f0 msgid 1
> request done: ld 0x1aa8c6f0 msgid 1
> res_errno: 0, res_error: <>, res_matched: <>
> ldap_free_request (origid 1, msgid 1)
> ldap_parse_extended_result
> ber_scanf fmt ({eaa) ber:
> ber_scanf fmt (a) ber:
> ldap_parse_result
> ber_scanf fmt ({iaa) ber:
> ber_scanf fmt (x) ber:
> ber_scanf fmt (}) ber:
> ldap_msgfree
> TLS trace: SSL_connect:before/connect initialization
> TLS trace: SSL_connect:SSLv2/v3 write client hello A
> TLS trace: SSL_connect:SSLv3 read server hello A
> TLS certificate verification: depth: 0, err: 20, subject: 
> /CN=SBPADDC003.Corp.MYDOMAIN.AD <http://SBPADDC003.Corp.MYDOMAIN.AD>, 
> issuer: /DC=AD/DC=MYDOMAIN/DC=Corp/CN=Corp-SAPDHCP001-CA
> TLS certificate verification: Error, unable to get local issuer 
> certificate
Unable to get local issuer certificate?  Is the adcacert.asc file the 
actual CA cert in ascii/pem/base64 format from the AD CA?  Do you have 
more than one CA or subordinate CAs?  If so, you may need to have the 
entire CA cert chain in the file.

If you are sure that adcacert.asc is from the AD CA, then try adding 
TLS_CACERT /path/to/adcacert.asc to your ~/.ldaprc file and try the 
above ldapsearch again.

Let's see what the subject and issuer are in the CA cert:
openssl x509 -in /path/to/adcacert.asc -text
> TLS certificate verification: depth: 0, err: 27, subject: 
> /CN=SBPADDC003.Corp.MYDOMAIN.AD <http://SBPADDC003.Corp.MYDOMAIN.AD>, 
> issuer: /DC=AD/DC=MYDOMAIN/DC=Corp/CN=Corp-SAPDHCP001-CA
> TLS certificate verification: Error, certificate not trusted
> TLS certificate verification: depth: 0, err: 21, subject: 
> /CN=SBPADDC003.Corp.MYDOMAIN.AD <http://SBPADDC003.Corp.MYDOMAIN.AD>, 
> issuer: /DC=AD/DC=MYDOMAIN/DC=Corp/CN=Corp-SAPDHCP001-CA
> TLS certificate verification: Error, unable to verify the first 
> certificate
> TLS trace: SSL_connect:SSLv3 read server certificate A
> TLS trace: SSL_connect:SSLv3 read server certificate request A
> TLS trace: SSL_connect:SSLv3 read server done A
> TLS trace: SSL_connect:SSLv3 write client certificate A
> TLS trace: SSL_connect:SSLv3 write client key exchange A
> TLS trace: SSL_connect:SSLv3 write change cipher spec A
> TLS trace: SSL_connect:SSLv3 write finished A
> TLS trace: SSL_connect:SSLv3 flush data
> TLS trace: SSL_connect:SSLv3 read finished A
> TLS trace: SSL3 alert write:warning:bad certificate
> TLS: unable to get peer certificate.
> ldap_bind
> ldap_simple_bind
> ldap_sasl_bind
> ldap_send_initial_request
> ldap_send_server_request
> ber_scanf fmt ({it) ber:
> ber_scanf fmt ({i) ber:
> ber_flush: 14 bytes to sd 3
> ldap_result ld 0x1aa8c6f0 msgid 2
> wait4msg ld 0x1aa8c6f0 msgid 2 (infinite timeout)
> wait4msg continue ld 0x1aa8c6f0 msgid 2 all 1
> ** ld 0x1aa8c6f0 Connections:
> * host: sbpaddc003.corp.mydomain.ad 
> <http://sbpaddc003.corp.mydomain.ad>  port: 389  (default)
>   refcnt: 2  status: Connected
>   last used: Tue Sep 21 10:23:41 2010
> ** ld 0x1aa8c6f0 Outstanding Requests:
>  * msgid 2,  origid 2, status InProgress
>    outstanding referrals 0, parent count 0
> ** ld 0x1aa8c6f0 Response Queue:
>    Empty
> ldap_chkResponseList ld 0x1aa8c6f0 msgid 2 all 1
> ldap_chkResponseList returns ld 0x1aa8c6f0 NULL
> ldap_int_select
> read1msg: ld 0x1aa8c6f0 msgid 2 all 1
> ber_get_next
> ldap_perror
> ldap_result: Can't contact LDAP server (-1)
>  
> Please help to resolve this issue.

>
>
>
>  
> On Mon, Sep 20, 2010 at 6:31 PM, Rich Megginson <rmeggins at redhat.com 
> <mailto:rmeggins at redhat.com>> wrote:
>
>     Shan Kumaraswamy wrote:
>
>         Rich,
>         I am again facing some issue with IPA+AD Sync and I tested all
>         the levels:
>          Windows PassSync entry exists, not resetting password
>         INFO:root:Added new sync agreement, waiting for it to become
>         ready . . .
>         INFO:root:Replication Update in progress: FALSE: status: 81  -
>         LDAP error: Can't contact LDAP server: start: 0: end: 0
>         INFO:root:Agreement is ready, starting replication . . .
>         Starting replication, please wait until this has completed.
>         [saprhds001.bmibank.com <http://saprhds001.bmibank.com/>
>         <http://saprhds001.bmibank.com
>         <http://saprhds001.bmibank.com/>>] reports: Update failed!
>         Status: [81  - LDAP error: Can't contact LDAP server]
>
>         I have imported right CA to IPA box and the out put is:
>          Certificate Nickname                                        
>         Trust Attributes
>                                                                    
>         SSL,S/MIME,JAR/XPI
>         CA certificate                                              
>         CTu,u,Cu
>         Imported CA                                                  CT,,C
>         Server-Cert                                                  u,u,u
>          And also I done the openssl s_client option too, but no luck.
>
>     What exactly did you do? with openssl s_client?
>
>     Did you try
>     /usr/lib64/mozldap/ldapsearch -h fqdn.of.ad.hostname -Z -P
>     /etc/dirsrv/slapd-YOURINSTANCE/cert8.db -s base -b "" "objectclass=*"
>
>     LDAPTLS_CACERT=/path/to/adcacert.asc ldapsearch -d 1 -x -h
>     fqdn.of.ad.hostname -p 389 -Z -s base -b ""
>
>         Without cert when I try ldap search its gives out put. but
>         with cert (AD CA) through error.
>          Please help me fix this issue.
>          
>
>         -- 
>         Thanks & Regards
>         Shan Kumaraswamy
>
>
>
>
>
> -- 
> Thanks & Regards
> Shan Kumaraswamy
>