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Oracle Linux: The FTP connection intermittently hangs on UEKR5 (Doc ID 2725688.1)

Last updated on MARCH 17, 2021

Applies to:

Linux OS - Version Oracle Linux 7.8 with Unbreakable Enterprise Kernel [4.14.35] and later
Linux x86-64


After several connection attempts, the FTP connection intermittently hangs and the ftp prompt never came back unless a CTRL+C passed.

The vsftpd server logs doesn't show anything abnormal. It shows "226 Transfer complete." which means transfer complete.
As per the tcpdump the client never sends a FIN request to close the connection.


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