Netscan detected from host
- by Etam
I am using Hetzner's dedicated servers. Today I have got a message:
We have received information that there was an attack from your server.
----- attachment -----
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# Netscan detected from host ?.?.?.? #
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time protocol src_ip src_port dest_ip dest_port
---------------------------------------------------------------------------
Thu Dec 6 09:52:00 2012 TCP ?.?.?.? 52204 => 68.64.12.28 21
Thu Dec 6 09:52:00 2012 TCP ?.?.?.? 53276 => 68.64.12.29 21
Thu Dec 6 09:52:00 2012 TCP ?.?.?.? 47344 => 68.64.12.30 21
...
How can I find out what is causing the problem and how do I fix it?
Thanks in advance,
Etam.