1.
 Sep 22 21:25:13 www sshd[14647]: Did not receive
identification string from 210.207.64.35.
Sep 22 21:53:25 www sshd[14657]: Did not receive
identification string from 209.61.189.230.
Sep 22 21:54:58 www sshd[14659]: Did not receive
identification string from 209.61.189.230.
 =======================================================
 2.
 scanned from 203.52.118.18 with SSH-1.0-SSH_Version_Mapper .
Don't panic.
Sep 19 06:01:57 www sshd[2807]: Did not receive
identification string from 203.52.118.18.
 이런 글귀가 발견됐는데 무슨 뜻인지 ?