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Date:      Thu, 22 Sep 2022 02:14:46 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 264600] openssh: sshd spamming logs: error: Fssh_kex_exchange_identification: Connection closed by remote host
Message-ID:  <bug-264600-227-nq1BWPPjPm@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-264600-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-264600-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264600

--- Comment #13 from Jose Luis Duran <jlduran@gmail.com> ---
I believe we should change the title to:

"openssh: spamming error logs to the console and /var/log/messages"

Or something more general like that, since other errors can also be easily
triggered:

echo "\0" | nc ssh-server 22
error: Fssh_kex_exchange_identification: banner line contains invalid
characters

echo "SSH-XXX\n" | nc ssh-server 22
error: Bad remote protocol version identification: 'SSH-XXX'

You can get more ideas from kex_exchange_identification.

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