Monday, April 27, 2009

NYPD: Attacks or Noise?

Gasp! Panic! 70,000 attacks per day against the NYPD! From China no less! It must be a grand conspiracy! Black Red Helicopters!

Either that or it's just the normal background noise of the Internet. Let me check.

Let's try 'cat *.log | grep Deny | wc -l' on today's logs:

00:00 - 01:00 = 2,437,222
12:00 - 13:00 = 4,071,284
13:00 - 14:00 = 3,323,089

That's enough data.  This is a blog post, not peer reviewed research.

Figure 3 million per hour * 24 hours = umm... big  numbers...let me get my calculator.....Start/Run/calc.....3 * 24 = 72...

If an 'attack' is a denied packet, then seventy-two million 'attacks' per day is normal for a medium sized network ( two /16's and a  /19.  My guess is that some of them even come from China.

I think it's just noise.

Don't tell anyone though. NYPD is  probably going after Homeland Security funding.

Oh, and one more question. How do they know 'all the attempts have failed'.

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