"TCP Sweep" - What is it? How am I causing it?

Posted by Stephen Melrose on Server Fault See other posts from Server Fault or by Stephen Melrose
Published on 2010-03-22T16:08:15Z Indexed on 2010/03/22 16:11 UTC
Read the original article Hit count: 466

Filed under:

linux

|

vps

|

centos

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security

Hi there,

I've just had an email from my hosting company telling me I'm in violation of their Acceptable Use Policy.

They forwarded me an email from another company complaining about something to do with a "TCP sweep of port 22". They included a snippet from their logs,

20:29:43  <MY_SERVER_IP>  0.0.0.0        [TCP-SWEEP]
(total=325,dp=22,min=212.1.191.0,max=212.1.191.255,Mar21-20:26:34,Mar21-20:26:34)
(USI-amsxaid01)

Now, my server knowledge is limited at best, and I've absolutely no idea what this is or what could be causing it.

Any help would be greatly appreciated!

Thank you

© Server Fault or respective owner

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