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

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220
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

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

Issue

  • 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 domain.dom.com (Error: RESULT_ERROR_SPINCLIENT_SOCKET_CONNECT_ERROR)   
 [     0] No servers available for MS_NETLOGON, vserver: 8, domain: dom.com **
 [     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: 127.0.0.1: 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'

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