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Oracle Linux System Becomes Unavailable 24 Hours After Startup
Applies to:
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Symptoms
24 hours after the system is started, it becomes unavailable.
It is not possible to connect using ssh and it also does not respond to ping.
Cause
The system is obtaining its IP address from DHCP, during the initial startup. In OCI, if the IP is not renewed within 24 hours, the system will release the IP address.
A network service is responsible for renewing the IP address. In Oracle Linux, network.service or NetworkManager.service can be used. None was enabled in this case.
Solution
Check if network.service or NetworkManager.service is enabled and working without errors.
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