Hi all, I've found 'synchronized pings' in my logs from several hosts all around the world. Today they where 11 hosts more or less doing ping to my Debian box at the same time (11 pings in the same second). Sure this is not a DOS attack, almost for my server, but i can't understand why they are pinging me all at the same time, three o more times a day. Any ideas?
Searching in the logs I found pings from same of theese hosts a month ago, but in that days they were only 3-5 hosts pinging me at the same time... An excerpt of my logs: ----- 8< ------ Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 212.62.17.145 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 64.14.117.10 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 64.15.251.198 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 208.185.54.14 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 62.4.74.66 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 213.61.6.2 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 64.0.96.12 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 204.176.88.5 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 65.119.25.162 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 64.124.186.66 Oct 10 08:13:28 localhost ippl: ICMP message type echo request from 211.13.227.66 ... Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 62.4.74.66 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 213.61.6.2 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 212.62.17.145 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 64.14.117.10 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 66.28.34.130 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 208.185.54.14 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 64.15.251.198 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 64.0.96.12 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 64.28.86.226 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 65.119.25.162 Oct 10 11:40:07 localhost ippl: ICMP message type echo request from 204.176.88.5 .... Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 64.15.251.198 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 208.185.54.14 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 62.4.74.66 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 65.119.25.162 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 213.61.6.2 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 64.0.96.12 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 212.0.126.130 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 208.184.139.82 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 204.176.88.5 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 211.13.227.66 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 64.14.117.10 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 212.62.17.145 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 64.124.186.66 Oct 10 17:30:49 localhost ippl: ICMP message type echo request from 211.169.245.98 ----- 8< ------ Thank you very much in advance. Bye! MA Varó. ______________________________________________________ Consigue tu e-mail gratuito en Lycos. Entra en http://www.lycos.es Consigue tu propio Hosting y Dominio al mejor precio: http://webcenter.lycos.es/ Elvis vs JXL ya a la venta http://www.lycos.es/webguides/especial/elvis/
