Skip to main content
NetApp Knowledge Base

CIFS access lost due to SECD become unresponsive with lot of closed LDAP port 389 connections

Last Updated:

Applies to

  • ONTAP 9
  • CIFS
  • Secure Lightweight Directory Access Protocol  (LDAP with Start-TLS)
  • Trusted Domains


  • Cannot access all CIFS shares in a Trusted Domains environment
  • EMS logs :

[node-01: secd: secd.cifsAuth.problem:error]: vserver (<vserver_name>) General CIFS authentication problem.
 Error: User authentication procedure failed CIFS SMB2 Share mapping - Client Ip = 1.22.333.444  
 [  0 ms] Login attempt by domain user 'domain\user' using NTLMv2 style security   
 [     0] Unable to connect to NetLogon service on (Error: RESULT_ERROR_SPINCLIENT_SOCKET_CONNECT_ERROR)   
 [     0] No servers available for MS_NETLOGON, vserver: 8, domain: **
 [     0] FAILURE: Unable to make a connection (NetLogon:CORP.ADTRAN.COM),
 Result: RESULT_ERROR_SECD_NO_SERVER_AVAILABLE   [     0] CIFS authentication failed

Failed to create RPC client handle to MGWD: RPC: Remote address unknown

Unable to connect to NetLogon service on <domain controller> (Error: RESULT_ERROR_SECD_COULD_NOT_CREATE_RPC_HANDLE_TO_MGWD)

  • SECD logs :

Failed to open file: /mroot/etc/cluster_config/vserver/.vserver_<number>/config/name_services//etc/resolv.conf. Error: Too many open files

ERR  :  Error!!! Socket Error: Too many open files  { in DisplayPerror() at src/Support/CustomErrors.cpp:56 }

ERR  :  ldapSaslBindGssapi: Kerberos Error: 'Too many open files'

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.


  • Was this article helpful?