sshd.*: syslogin_perform_logout: logout\(\) returned an error sshd.*: Could not reverse map address .*\. sshd.*: Connection closed by .* sshd.*: Did not receive ident string from [\.[:digit:]]+ sshd\[.*\]: Failed keyboard-interactive for [[:alnum:]]+ from [\.[:digit:]]+ port [[:digit:]]+ ssh2