EM12c: Fusion Middleware Domain Target cannot be Refreshed or Monitored in Enterprise Manager 12c Cloud Control after Changing to TLS Protocol (Doc ID 2014266.1)

Last updated on JUNE 29, 2017

Applies to:

Enterprise Manager for Fusion Middleware - Version 12.1.0.1.0 to 12.1.0.7.0
Information in this document applies to any platform.

Symptoms

Switching to TLS1 protocol enforcement due to security concerns such as the Poodle exposure and SSLv3 protocol.

Using EM12c Cloud Control to monitor a Fusion Middleware domain.

 

After adding this to the JAVA_OPTIONS for startup of the admin/managed instances:

-Dweblogic.security.SSL.protocolVersion=TLS1

--- you are no longer able to do "Refresh WebLogic Domain" or discover targets where this setting is used.

In previously working domains, now seeing on Refresh:


Failed to discover WebLogic. Check host,port,credentials,protocol and be sure the server is running and the same farm is not already added. This UI can not be used to discover WebLogic version 7.x to 8.x. Exception: Failed to discover WebLogic: java.lang.RuntimeException: java.lang.RuntimeException: java.net.ConnectException t3s://myhost:8102: Destination unreachable; nested exception is: javax.net.ssl.SSLException: Received fatal alert: unexpected_message; No available router to destination. No targets discovered. Check host, port, credentials, and protocol and be sure the server is running. This UI cannot be used to discover WebLogic version 7.x to 8.x..

Changes

 

Cause

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