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Cách Block IP tấn công remote connection trên Window 2008

Simply following these instructions showing how to create an IPSec Security Policy specifying to block access to a specific IP address.

Step 1

Click on the Start Menu and Click on Run.

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Step 2

Type “secpol.msc” and Click OK.

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Step 3

When the Local Security Settings console opens, Click on “IP Security Policies on Local Computer“.

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Step 4

Right Click in the Right Window Pane and Click “Create IP Security Policy“.

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Step 5

Click Next when the Wizard opens.

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Step 6

Here you can name your new IPSec Security Policy. In this example, we named it “Blocked IPs”. When you are ready, Click Next.

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Step 7

Click Next

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Step 8

Click Next

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Step 9

Click Yes

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Step 10

Click Finish

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Step 11

Uncheck the “Use Add Wizard” checkbox, then Click “Add…“.

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Step 12

Click the “Add…” button.

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Step 13

Uncheck the “Use Add Wizard” checkbox, then Click “Add…“.

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Step 14

Click the dropdown menu for “Source address” and choose “A specific IP Address“.

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Step 15

Here is where you enter what IP address you want to Block. In this example, we are going to block “129.12.74.220”.

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Step 16

Click the dropdown menu for “Destination address” and choose “My IP Address“, then Click OK.

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Step 17

Click OK

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Step 18

Select the newly created Filter, and click on the “Filter Action” tab.

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Step 19

Select the “SI – Deny” Rule and Click Apply.

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Step 20

Click OK, then Apply and OK again to get back to the main console window.
Right Click on the newly created IPSec Security Policy, and select “Assign“.

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Step 21

If successfull, it should state that the policy is assigned. Your server is now blocking all requests to that specific IP address.

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