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Discuss and ask questions about NetApp's Operating Systems Data ONTAP 7G (Data ONTAP 8.0 7-Mode), Clustered Data ONTAP 8, Data ONTAP Edge and their data protection features and plug-ins.

sshd error

[sshd_0:error]: error: Disconnecting: Protocol error: expected packet type 21, got -1

[sshd_2:error]: error: Disconnecting: Protocol error: expected packet type 21, got -1

[sshd_1:error]: error: Disconnecting: Protocol error: expected packet type 21, got -1

Does anyone know what's happen?

I saw it in my log and console as well.

Can I find which client is trying to access? Hacking?

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