Feb 17 08:**:** MyHost sshd[20505]: Received disconnect from 186.200.12.5: 11: Bye Bye [preauth] Feb 17 08:**:** MyHost sshd[20507]: reverse mapping checking getaddrinfo for 186-200-12-5.customer.tdatabrasil.net.br [186.200.12.5] failed - POSSIBLE BREAK-IN ATTEMPT!