MNBS Installation of Dynamic IP Restrictions

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With the module "Dynamic IP Restrictions" we're able to block Dynamic IP addresses after a number of requests over HTTP. It's tested on a IIS 7 server on MNBS. It's helpful for DDoS attacks on a explicit web or defend the whole server.

Download and further information

You'll find the download link and further information from Microsoft on this site: http://www.iis.net/downloads/microsoft/dynamic-ip-restrictions

Installation of the module

The setup file is based on the "Microsoft Web Platform", which setup wizard will be downloaded automatically

Installation steps

• Start the Setup file and click through the wizard

You're able to use the default options

• The module "Dynamic IP Restrictions" 1.0 is now installed

• Warning! Due the permissions of Plesk all Sites with an own application pool and Plesk will be offline now!

• To fix this, change the permissions of the two directories C:\Program Files (x86)\IIS\Dynamic IP Restrictions and C:\Program Files\IIS\Dynamic IP Restrictions
  • Add the groups "Everyone" and "IUSR" to the Security groups with Read & Execute permissions:

<Screenshot folgt>

• To bring IIS online again, you should start all stopped Application Pools in IIS Manager -> Application Pools:

<Screenshot folgt>

• Finished! You should close an reopen the IIS Manager and is available in the IIS Manager

• Take a look in this article how to configure "Dynamic IP Restrictions"