Oracle Linux 7: Server Application Getting "connection refused" From Remote Servers (Either IPTABLES service OR FILEWALLD)
(Doc ID 2342158.1)
Last updated on SEPTEMBER 21, 2021
Applies to:
Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 7.0 and later Information in this document applies to any platform.
Symptoms
An application is getting "connection refused" from other servers. The application is accessible from localhost and also it listens to the expected port.
Changes
Both new installation or upgrade completion.
Cause
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