Created
March 9, 2020 09:11
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Print the names of the users that failed to connect to a machine using ssh
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| cat /var/log/auth.log | grep -i -e "disconnected from invalid user" | awk -F' ' '{print $10}' | sort | uniq # INVALID LOGINS USERNAMES (for bash autocompletion and reverse-i search) |
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Can be copied and pasted in your ssh server,
to re-execute on the same machine just ctrl+r and start typing "INVALID", "LOGINS", or "USERNAMES" in uppercase.