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 25, 2023
Applies to:
Oracle WebLogic Server - Version 10.3.6 and laterIdentity 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 |