[Aa]uthentication failure for .* from <HOST>( via [[:print:]]*)?
[Aa]uthentication error for .* from <HOST>( via [[:print:]]*)?
User not known to the underlying authentication module for .* from <HOST>
refused connect from [[:print:]]+ \(<HOST>\)
Received disconnect from <HOST>: [0-9]*: [[:print:]]+: Auth fail
Did not receive identification string from <HOST>
Invalid user [[:print:]]+ from <HOST>
Connection closed by <HOST>( port [0-9]+)? \[preauth\]
Postponed keyboard-interactive for invalid user [[:print:]]+ from <HOST> port [0-9]+
User [[:print:]]+ from <HOST> not allowed because not listed in AllowUsers
User [[:print:]]+ from <HOST> not allowed because listed in DenyUsers
User [[:print:]]+ from <HOST> not allowed because not in any group
User [[:print:]]+ from <HOST> not allowed because a group is listed in DenyGroups
User [[:print:]]+ from <HOST> not allowed because none of user's groups are listed in AllowGroups