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EM 13c: Enterprise Manager 13c Cloud Control Configured with Active Directory Shows Intermittent Connectivity with Error: SSLHandshakeException: [Security:090294]could not get connection (Doc ID 2822773.1)

Last updated on JANUARY 12, 2022

Applies to:

Enterprise Manager Base Platform - Version 13.4.0.0.0 and later
Information in this document applies to any platform.

Symptoms

Enterprise Manager (EM) 13.4 Cloud Control configured with Microsoft Active Directory 2016 LDAP shows intermittent connectivity issues From Web Logic to LDAP.

Users and Groups disappear From the WebLogic Admin Console.

SSL handshake errors are seen in the WebLogic Server 12.2.1 Admin Server logs.
From <EM_Instance_Base>/gc_inst/user_projects/domains/GCDomain/servers/emgc_oms1/logs/emgc_adminserver.out:

<Aug 13, 2021 3:42:21,837 PM UTC> <Warning> <Security> <BEA-099117> <The LDAP authentication provider named "EM_AD_Provider"
failed to make a connection to LDAP server at ldaps://HostName:PORT, the error cause is: Unsupported curveId: 29.>
<Aug 13, 2021 3:42:21,846 PM UTC> <Error> <Console> <BEA-240003> <Administration Console encountered the following error:
weblogic.security.providers.authentication.LDAPAtnDelegateException:
[Security:090294]could not get connection

at weblogic.security.providers.authentication.LDAPAtnDelegate.getConnection(LDAPAtnDelegate.java:3884)
at weblogic.security.providers.authentication.LDAPAtnDelegate.getConnection(LDAPAtnDelegate.java:3868)
at weblogic.security.providers.authentication.LDAPAtnDelegate.listUsers(LDAPAtnDelegate.java:2627)
at weblogic.security.providers.authentication.LDAPAuthenticatorImpl.listUsers(LDAPAuthenticatorImpl.java:195)
at weblogic.security.providers.authentication.ActiveDirectoryAuthenticatorMBeanImpl.listUsers(ActiveDirectoryAuthenticatorMBeanImpl.java:243)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)

 

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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