Why sshd outputs “error: Received disconnect from XXX port XXX: Server protocol violation: unexpected SSH2_MSG_UNIMPLEMENTED packet [preauth])” message?
Issue
ssh
server outputssshd[XXX]: error: Received disconnect from XXX port XXX: Server protocol violation: unexpected SSH2_MSG_UNIMPLEMENTED packet [preauth])
message.
Environment
- Red Hat Enterprise Linux 7, 8
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