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Increase in SSH scans



I will normally get two or three hits on ssh per day.

From LogWatch this morning:

---------------- Connections (secure-log) Begin -------------------
**Unmatched Entries**
Sep 29 09:38:38 low sshd[17083]: Did not receive identification string from 155.135.21.52
Sep 29 09:38:50 low sshd[17084]: Did not receive identification string from 155.135.21.52
Sep 29 10:39:59 low sshd[17134]: Did not receive identification string from 64.86.51.194
Sep 29 11:14:58 low sshd[17172]: Did not receive identification string from 192.100.172.221
Sep 29 11:15:34 low sshd[17175]: Did not receive identification string from 141.158.192.201
Sep 29 11:48:20 low sshd[17201]: Did not receive identification string from 63.94.149.93
Sep 29 11:51:24 low sshd[17211]: Did not receive identification string from 195.39.45.186
Sep 29 18:44:03 low sshd[17692]: Did not receive identification string from 66.84.209.226
Sep 29 19:03:35 low sshd[17718]: Did not receive identification string from 66.150.105.38
Sep 29 19:18:32 low sshd[17736]: Did not receive identification string from 210.33.44.12
Sep 29 19:59:58 low sshd[17774]: Did not receive identification string from 163.180.17.91
Sep 29 20:33:03 low sshd[17807]: Did not receive identification string from 196.40.3.74
Sep 29 20:42:53 low sshd[17815]: Did not receive identification string from 140.127.192.30

At least one of the hosts involved shows up at dshield.org with evidence of a slapper infestation.
Anyone seeing anything similar?


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