FreeBSD 12 shows successfull logins with an error in auth.log

Matthias Fechner idefix at
Sun Dec 16 17:49:22 UTC 2018

Dear all,

I started now to upgrade the first servers from 11.2 to 12.0.

Now if I login with ssh to the server I see the following messages in
auth.log which causes fail2ban to block the IP after some successfull
Dec 16 18:45:16 _server_ sshd[74059]: Failed unknown for xxx from
2a01:5c0:e082:xxxx:xxxx:xxxx:xxxx:xxxx port 56676 ssh2
Dec 16 18:45:16 _server_ sshd[74059]: user idefix login class  [preauth]
Dec 16 18:45:16 _server_ sshd[74059]: Accepted publickey for xxx from
2a01:5c0:e082:xxxx:xxxx:xxxx:xxxx:xxxx port 56676 ssh2: ED25519 SHA256:xxx

Is there a reason why I get the `failed unkown for ...` log line?
Has anyone an idea, who to fix this?




"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

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