Jul  7 12:34:48 myserverhost sshd[2476902]: Received disconnect from 99.99.99.135 port 64131:11: disconnected by user
Jul  7 12:34:48 myserverhost sshd[2476902]: Disconnected from user root 99.99.99.135 port 64131
Jul  7 12:34:53 myserverhost sshd[2476072]: Received disconnect from 99.99.99.135 port 62071:11: disconnected by user
Jul  7 12:34:53 myserverhost sshd[2476072]: Disconnected from user root 99.99.99.135 port 62071
Jul  7 12:41:36 myserverhost sshd[2477141]: Accepted publickey for root from 99.99.99.135 port 64858 ssh2: RSA SHA256:tU2jSWjZsopk8FnqJn4Jozs1eKmGGNk2VcDheAlbiCk
Jul  7 12:48:13 myserverhost sshd[2477143]: Received disconnect from 99.99.99.135 port 64858:11: disconnected by user
Jul  7 12:48:13 myserverhost sshd[2477143]: Disconnected from user root 99.99.99.135 port 64858
Jul  7 12:58:02 myserverhost sshd[2477398]: Accepted publickey for root from 99.99.99.135 port 49585 ssh2: RSA SHA256:tU2jSWjZsopk8FnqJn4Jozs1eKmGGNk2VcDheAlbiCk
Jul  7 13:00:31 myserverhost sshd[2477448]: Connection closed by authenticating user root 2.57.169.74 port 54817 [preauth]
Jul  7 13:20:33 myserverhost sshd[2477400]: Timeout, client not responding from user root 99.99.99.135 port 49585
Jul  8 02:40:53 myserverhost sshd[2489415]: Accepted publickey for root from 99.99.99.135 port 51220 ssh2: RSA SHA256:tU2jSWjZsopk8FnqJn4Jozs1eKmGGNk2VcDheAlbiCk
Jul  8 02:41:40 myserverhost sshd[2489453]: Connection closed by authenticating user root 99.99.99.135 port 63146 [preauth]