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Unknown SSH Log Entries

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Any idea what this might be?  I was not up at 2am using ssh and no ports are open to unraid gui.  Except for those two entries the logs are clean going back to the 15th.  Doesn't look like a hack since only two attempts of whatever this is in almost nine days of uptime.  Is this an internal ssh thing or something external triggered these log entries?  "kex_exchange..." didn't net much in a search.  Thanks

 

Jan 23 02:00:31 Tower sshd[13206]: error: kex_exchange_identification: Connection closed by remote host
Jan 23 02:00:32 Tower sshd[13281]: error: kex_exchange_identification: Connection closed by remote host

 

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I don't have a direct answer for you but I would like to suggest that you Google   kex_exchange_identification     and read some of the results.

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Thanks for a reply.  Nothing I do does a ssh connection at 2am and nothing I do has a sustained open ssh connection to be disconnected.  Don't even use ssh to unraid - use telnet from inside local network.  Will disable it.

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