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Blocked IP Range in IIS and still getting attacked

Posted on 2008-10-15
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Last Modified: 2012-06-21
I am running 2008 server with IIS 7.0

I have an FTP server running and I am constantly getting nailed by people trying to brute force me.
I went in and created deny rules for a bunch of subnets. However I am still getting people from those IP ranges connecting...why??

For example:
I have a DENY for:
124.0.0.0 with a mask of 255.0.0.0
also tried 124.1.1.1 with a mask 255.0.0.0

I am still seeing IP's trying to brute force from 124.x.x.x

What am I doing wrong? I had the same issue on my 2003 server with IIS 6.0
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Question by:FLVS_407
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Accepted Solution

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arnold earned 75 total points
ID: 22723474
It is better to implement the deny rule on the firewall.
With the deny rule in IIS, the connection is established assessed and dropped.

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