さくらのVPSで利用しているサーバーのログを見てたら、49.212.63.98からのアクセスが延々と続いていました。
49.212.63.98のホスト名は、renew01.sbi-com.sbins.infoという事なので、ブラウザでアクセスしてみました。SBIホールディングス株式会社が管理しているサーバーという事であってる？。
簡単にはsshで接続できないようにしているので大丈夫だと思いますが、気分が悪いのでFirewallでブロックすることにしました・・・。
Jan 2 09:43:13 lark sshd[1000]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:44:00 lark sshd[1004]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:44:46 lark sshd[1053]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:45:31 lark sshd[1056]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:46:24 lark sshd[1061]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:47:16 lark sshd[1065]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:48:07 lark sshd[1068]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:49:04 lark sshd[1073]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:49:55 lark sshd[1120]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:50:50 lark sshd[1126]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:51:41 lark sshd[1133]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:52:29 lark sshd[1136]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:53:21 lark sshd[1140]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:54:11 lark sshd[1149]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:55:11 lark sshd[1198]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:57:42 lark sshd[1206]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:58:40 lark sshd[1211]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 09:59:29 lark sshd[1216]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:00:23 lark sshd[1284]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:01:15 lark sshd[1287]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:02:06 lark sshd[1294]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:02:58 lark sshd[1297]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:03:52 lark sshd[1301]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:04:43 lark sshd[1305]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:05:36 lark sshd[1356]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:06:36 lark sshd[1363]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:07:27 lark sshd[1369]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:08:13 lark sshd[1374]: Received disconnect from 49.212.63.98: 11: Bye Bye
Jan 2 10:08:59 lark sshd[1377]: Received disconnect from 49.212.63.98: 11: Bye Bye
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