./auth.log:18607:Mar  9 12:58:58 komodoNA sshd[26971]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18616:Mar  9 13:02:10 komodoNA sshd[27172]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18619:Mar  9 13:03:08 komodoNA sshd[27224]: fatal: no matching mac found: client hmac-md5,hmac-sha1 server hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
./auth.log:18620:Mar  9 13:03:08 komodoNA sshd[27225]: fatal: no matching mac found: client hmac-md5,hmac-sha1 server hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
./auth.log:18621:Mar  9 13:03:11 komodoNA sshd[27228]: fatal: no matching mac found: client hmac-md5,hmac-sha1 server hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
./auth.log:18624:Mar  9 13:04:05 komodoNA sshd[27279]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18629:Mar  9 13:06:08 komodoNA sshd[27381]: Invalid user user from 181.39.89.146
./auth.log:18630:Mar  9 13:06:08 komodoNA sshd[27381]: input_userauth_request: invalid user user [preauth]
./auth.log:18631:Mar  9 13:06:08 komodoNA sshd[27381]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18638:Mar  9 13:09:25 komodoNA sshd[27533]: Invalid user user1 from 181.39.89.146
./auth.log:18639:Mar  9 13:09:25 komodoNA sshd[27533]: input_userauth_request: invalid user user1 [preauth]
./auth.log:18640:Mar  9 13:09:25 komodoNA sshd[27533]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18645:Mar  9 13:11:24 komodoNA sshd[27636]: Invalid user user01 from 181.39.89.146
./auth.log:18646:Mar  9 13:11:24 komodoNA sshd[27636]: input_userauth_request: invalid user user01 [preauth]
./auth.log:18647:Mar  9 13:11:24 komodoNA sshd[27636]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18652:Mar  9 13:13:20 komodoNA sshd[27740]: Invalid user user2 from 181.39.89.146
./auth.log:18653:Mar  9 13:13:20 komodoNA sshd[27740]: input_userauth_request: invalid user user2 [preauth]
./auth.log:18654:Mar  9 13:13:20 komodoNA sshd[27740]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18659:Mar  9 13:15:16 komodoNA sshd[27843]: Invalid user user3 from 181.39.89.146
./auth.log:18660:Mar  9 13:15:16 komodoNA sshd[27843]: input_userauth_request: invalid user user3 [preauth]
./auth.log:18661:Mar  9 13:15:16 komodoNA sshd[27843]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18664:Mar  9 13:16:43 komodoNA sshd[27897]: Received disconnect from 59.49.224.224: 11: ok [preauth]
./auth.log:18669:Mar  9 13:17:10 komodoNA sshd[27959]: Invalid user user02 from 181.39.89.146
./auth.log:18670:Mar  9 13:17:10 komodoNA sshd[27959]: input_userauth_request: invalid user user02 [preauth]
./auth.log:18671:Mar  9 13:17:11 komodoNA sshd[27959]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18676:Mar  9 13:19:06 komodoNA sshd[28062]: Invalid user user03 from 181.39.89.146
./auth.log:18677:Mar  9 13:19:06 komodoNA sshd[28062]: input_userauth_request: invalid user user03 [preauth]
./auth.log:18678:Mar  9 13:19:06 komodoNA sshd[28062]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18683:Mar  9 13:21:01 komodoNA sshd[28119]: Invalid user user1 from 181.39.89.146
./auth.log:18684:Mar  9 13:21:01 komodoNA sshd[28119]: input_userauth_request: invalid user user1 [preauth]
./auth.log:18685:Mar  9 13:21:01 komodoNA sshd[28119]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18688:Mar  9 13:22:57 komodoNA sshd[28222]: Invalid user user2 from 181.39.89.146
./auth.log:18689:Mar  9 13:22:57 komodoNA sshd[28222]: input_userauth_request: invalid user user2 [preauth]
./auth.log:18690:Mar  9 13:22:57 komodoNA sshd[28222]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18695:Mar  9 13:24:54 komodoNA sshd[28326]: Invalid user user3 from 181.39.89.146
./auth.log:18696:Mar  9 13:24:54 komodoNA sshd[28326]: input_userauth_request: invalid user user3 [preauth]
./auth.log:18697:Mar  9 13:24:54 komodoNA sshd[28326]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18702:Mar  9 13:26:49 komodoNA sshd[28429]: Invalid user usertest from 181.39.89.146
./auth.log:18703:Mar  9 13:26:49 komodoNA sshd[28429]: input_userauth_request: invalid user usertest [preauth]
./auth.log:18704:Mar  9 13:26:50 komodoNA sshd[28429]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18709:Mar  9 13:28:47 komodoNA sshd[28532]: Invalid user dev from 181.39.89.146
./auth.log:18710:Mar  9 13:28:47 komodoNA sshd[28532]: input_userauth_request: invalid user dev [preauth]
./auth.log:18711:Mar  9 13:28:47 komodoNA sshd[28532]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18714:Mar  9 13:29:55 komodoNA sshd[28586]: fatal: no matching cipher found: client aes128-cbc,blowfish-cbc,3des-cbc server aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes128-ctr [preauth]
./auth.log:18715:Mar  9 13:29:58 komodoNA sshd[28588]: fatal: no matching cipher found: client aes128-cbc,blowfish-cbc,3des-cbc server aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes128-ctr [preauth]
./auth.log:18718:Mar  9 13:30:01 komodoNA sshd[28590]: Did not receive identification string from 123.31.32.58
./auth.log:18719:Mar  9 13:30:55 komodoNA sshd[28640]: Invalid user mysql from 181.39.89.146
./auth.log:18720:Mar  9 13:30:55 komodoNA sshd[28640]: input_userauth_request: invalid user mysql [preauth]
./auth.log:18721:Mar  9 13:30:55 komodoNA sshd[28640]: Connection closed by 181.39.89.146 [preauth]
./auth.log:18726:Mar  9 13:32:59 komodoNA sshd[28744]: fatal: no matching mac found: client hmac-md5,hmac-sha1 server hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
./auth.log:18729:Mar  9 13:33:02 komodoNA sshd[28795]: fatal: no matching mac found: client hmac-md5,hmac-sha1 server hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]