Samba ADS Users Unable To Authenticate And Log File log.wb-DOMAIN Reports Reducing LDAP page size from nnn to nnn due to IO_TIMEOUT (Doc ID 1591507.1)

Last updated on OCTOBER 13, 2023

Applies to:

Symptoms

Solaris 10 Samba Server using ADS security mode had users unable to successfully authenticate to access Samba shares.

Winbind commands such as the wbinfo commands shown would return the error WBC_ERR_DOMAIN_NOT_FOUND

wbinfo -u

wbinfo --user-info=domain\\username

wbinfo -i domain\\username

failed to call wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND
Could not get info for user domain\username

One of the Samba winbindd logs reported timeout messages. The log file is named log.wb-DOMAIN

"DOMAIN" will be the ADS DOMAIN that the Samba Server has joined

[2013/08/01 16:00:39.528848,  1] rpc_client/cli_pipe.c:470(cli_pipe_validate_current_pdu)
 rpc_client/cli_pipe.c:466: RPC fault code WERR_RPC_S_SEC_PKG_ERROR received from <FQ_HOSTNAME>!
[2013/08/01 16:27:37.995719,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 1000 to 500 due to IO_TIMEOUT
[2013/08/01 17:00:00.253576,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 500 to 250 due to IO_TIMEOUT
[2013/08/01 17:30:00.891649,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 250 to 125 due to IO_TIMEOUT
[2013/08/02 02:30:00.665321,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 1000 to 500 due to IO_TIMEOUT
[2013/08/02 03:00:01.619702,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 500 to 250 due to IO_TIMEOUT
[2013/08/02 03:30:00.130139,  1] libads/ldap_utils.c:90(ads_do_search_retry_internal)
 Reducing LDAP page size from 250 to 125 due to IO_TIMEOUT

Cause

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