Troubleshooting
Problem
OMNIbus v8.1.0.14 was configured to connect to LDAPS, with the correct parameters added to ldap.props, however the connection fails as follows:
User netcool_user@domain.com failed to login: Not authenticated
Error: E-AUT-102-007: Failed to bind to LDAP server for user cn=cnlabel,ou=OUAccounts,dc=company,dc=com. (81:Can't contact LDAP server)
Error: E-AUT-102-021: Error occurred while trying to establish bind connection. Error Can't contact LDAP server
Error: E-AUT-102-007: Failed to bind to LDAP server for user cn=cnlabel,ou=OUAccounts,dc=company,dc=com. (81:Can't contact LDAP server)
Error: E-AUT-102-021: Error occurred while trying to establish bind connection. Error Can't contact LDAP server
Error: E-OBX-102-023: Failed to authenticate user netcool_user. (-3602:Not authenticated)
Error: E-AUT-102-007: Failed to bind to LDAP server for user cn=cnlabel,ou=OUAccounts,dc=company,dc=com. (81:Can't contact LDAP server)
Error: E-AUT-102-021: Error occurred while trying to establish bind connection. Error Can't contact LDAP server
Error: E-AUT-102-007: Failed to bind to LDAP server for user cn=cnlabel,ou=OUAccounts,dc=company,dc=com. (81:Can't contact LDAP server)
Error: E-AUT-102-021: Error occurred while trying to establish bind connection. Error Can't contact LDAP server
Error: E-OBX-102-023: Failed to authenticate user netcool_user. (-3602:Not authenticated)
The openssl s_client -connect [LDAP_server]:636
(where LDAP_server is the destination LDAP server and 636 is the SSL port in ldap.props)
returns information that TLSv1.2 is in use.
tcpdump output shows the Client Hello message issued but no response from the LDAP server.
The expanded error in the destination S Channel shows:
"An TLS 1.2 connection request was received from a remote client application, but none of the cipher suites supported by the client application are supported by the server. The SSL connection request has failed."
Symptom
Connection fails with
"Failed to authenticate user [username]. (-3602:Not authenticated)"
Document Location
Worldwide
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSSHTQ","label":"Tivoli Netcool\/OMNIbus"},"ARM Category":[{"code":"a8m500000008aAoAAI","label":"Core Omnibus-\u003EObjectServer nco_objserv-\u003EOS - LDAP"}],"ARM Case Number":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"8.1.0","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]
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Historical Number
TS003474590
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Document Information
Modified date:
09 May 2025
UID
ibm16206165