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CONNECTION_REFUSED Errors In Apache Logs With Network Channel Configured 'OutboundEnabled' Set To True in WebLogic Server (Doc ID 2199986.1)

Last updated on AUGUST 23, 2021

Applies to:

Oracle WebLogic Server - Version 10.3.6 and later
Identity Manager - Version 12.2.1.4.210428 to 12.2.1.4.210428 [Release 12c]
Information in this document applies to any platform.

Symptoms

On WebLogic Server 10.3.6,  when customer enabled the Network Channel with the settings Enabled Outbound and Tunneling Enabled true; it caused below errors at frontend Apache server logs.

The error below appeared (recurrent and intermittent) in the logs of Apache servers (front end):

 

Customer overall call flow is :- LoadBalancer (hardware appliance) --> Apache ---> WebLogic Server

There is no firewall in this communication. Customer has "<External IP Address>" which is a VIP (virtual IP) and this is trying to make a connection to Apache server. Apache server httpd.conf files has WebLogicCluster parameter with backend WebLogic logs listen address. Then they configured "<External IP Address>" in the WebLogic Network Channel as External Listen Address.

Cause

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In this Document
Symptoms
Cause
Solution


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