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OCI: Ubuntu ufw Fails to Open Ports while firewalld is Installed and Running (Doc ID 2907485.1)

Last updated on DECEMBER 08, 2022

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64


On an Ubuntu 22.04 images, firewalld was installed and started while ufw was configured as well.
As a result connections are closed when either firewalld or ufw is started or stopped and no further connections are possible.


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